./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label02.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_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/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_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/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_b483ba44-d0bd-422d-ac8f-ba743b285b2d/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 540d5c4f35934e1abeb0886e7556fb35e244ff515a3f2091d43a3a4e43fb5fb5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:05:42,351 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:05:42,451 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:05:42,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:05:42,459 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:05:42,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:05:42,501 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:05:42,502 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:05:42,502 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:05:42,502 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:05:42,503 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:05:42,503 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:05:42,504 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:05:42,504 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:05:42,504 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:05:42,504 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:05:42,504 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:05:42,504 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:05:42,505 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:05:42,505 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:05:42,505 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:05:42,505 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:05:42,505 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:05:42,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:05:42,505 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:05:42,505 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:05:42,505 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:05:42,505 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:05:42,505 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:05:42,506 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:05:42,507 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:05:42,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:05:42,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:05:42,507 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:05:42,507 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:05:42,507 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:05:42,508 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:05:42,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:05:42,508 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:05:42,508 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:05:42,508 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:05:42,508 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:05:42,508 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:05:42,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:05:42,509 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:05:42,509 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:05:42,509 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:05:42,509 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:05:42,510 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_b483ba44-d0bd-422d-ac8f-ba743b285b2d/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 -> 540d5c4f35934e1abeb0886e7556fb35e244ff515a3f2091d43a3a4e43fb5fb5 [2024-11-28 05:05:42,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:05:42,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:05:42,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:05:42,806 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:05:42,806 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:05:42,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/eca-rers2012/Problem16_label02.c [2024-11-28 05:05:45,697 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/data/70f25893b/7d169a0c74fb4462a3fe4197f687e4e1/FLAG5f25ed02c [2024-11-28 05:05:46,139 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:05:46,139 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/sv-benchmarks/c/eca-rers2012/Problem16_label02.c [2024-11-28 05:05:46,162 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/data/70f25893b/7d169a0c74fb4462a3fe4197f687e4e1/FLAG5f25ed02c [2024-11-28 05:05:46,181 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/data/70f25893b/7d169a0c74fb4462a3fe4197f687e4e1 [2024-11-28 05:05:46,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:05:46,186 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:05:46,189 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:05:46,189 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:05:46,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:05:46,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:05:46" (1/1) ... [2024-11-28 05:05:46,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d21405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:46, skipping insertion in model container [2024-11-28 05:05:46,197 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:05:46" (1/1) ... [2024-11-28 05:05:46,261 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:05:46,471 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_b483ba44-d0bd-422d-ac8f-ba743b285b2d/sv-benchmarks/c/eca-rers2012/Problem16_label02.c[6387,6400] [2024-11-28 05:05:46,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:05:46,814 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:05:46,836 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_b483ba44-d0bd-422d-ac8f-ba743b285b2d/sv-benchmarks/c/eca-rers2012/Problem16_label02.c[6387,6400] [2024-11-28 05:05:47,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:05:47,070 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:05:47,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47 WrapperNode [2024-11-28 05:05:47,071 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:05:47,072 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:05:47,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:05:47,073 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:05:47,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2024-11-28 05:05:47,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2024-11-28 05:05:47,264 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1769 [2024-11-28 05:05:47,264 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:05:47,266 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:05:47,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:05:47,266 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:05:47,275 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2024-11-28 05:05:47,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2024-11-28 05:05:47,286 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2024-11-28 05:05:47,409 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 05:05:47,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2024-11-28 05:05:47,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2024-11-28 05:05:47,474 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2024-11-28 05:05:47,480 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2024-11-28 05:05:47,501 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2024-11-28 05:05:47,523 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2024-11-28 05:05:47,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2024-11-28 05:05:47,550 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:05:47,552 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:05:47,552 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:05:47,552 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:05:47,553 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2024-11-28 05:05:47,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:05:47,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:05:47,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:05:47,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:05:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:05:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:05:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:05:47,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:05:47,691 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:05:47,693 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:05:50,471 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-11-28 05:05:50,471 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:05:50,498 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:05:50,499 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:05:50,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:05:50 BoogieIcfgContainer [2024-11-28 05:05:50,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:05:50,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:05:50,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:05:50,511 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:05:50,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:05:46" (1/3) ... [2024-11-28 05:05:50,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437aeb45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:05:50, skipping insertion in model container [2024-11-28 05:05:50,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (2/3) ... [2024-11-28 05:05:50,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437aeb45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:05:50, skipping insertion in model container [2024-11-28 05:05:50,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:05:50" (3/3) ... [2024-11-28 05:05:50,515 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem16_label02.c [2024-11-28 05:05:50,531 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:05:50,533 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem16_label02.c that has 1 procedures, 396 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 05:05:50,624 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:05:50,640 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;@17e948e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:05:50,640 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:05:50,648 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 05:05:50,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 05:05:50,656 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:50,658 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] [2024-11-28 05:05:50,658 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:50,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:50,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1818267785, now seen corresponding path program 1 times [2024-11-28 05:05:50,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:50,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779591757] [2024-11-28 05:05:50,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:50,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:51,111 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 05:05:51,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:51,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779591757] [2024-11-28 05:05:51,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779591757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:51,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:51,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:05:51,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924742684] [2024-11-28 05:05:51,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:51,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:05:51,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:51,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:05:51,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:05:51,140 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 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 05:05:53,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:53,599 INFO L93 Difference]: Finished difference Result 1137 states and 2118 transitions. [2024-11-28 05:05:53,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:05:53,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-28 05:05:53,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:53,622 INFO L225 Difference]: With dead ends: 1137 [2024-11-28 05:05:53,623 INFO L226 Difference]: Without dead ends: 662 [2024-11-28 05:05:53,628 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 05:05:53,633 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 323 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:53,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 114 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 05:05:53,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-28 05:05:53,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2024-11-28 05:05:53,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.7004538577912254) internal successors, (1124), 661 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states 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 05:05:53,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1124 transitions. [2024-11-28 05:05:53,736 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1124 transitions. Word has length 61 [2024-11-28 05:05:53,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:53,737 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1124 transitions. [2024-11-28 05:05:53,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 05:05:53,737 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1124 transitions. [2024-11-28 05:05:53,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-28 05:05:53,744 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:53,744 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:53,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:05:53,745 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:53,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:53,745 INFO L85 PathProgramCache]: Analyzing trace with hash 804089513, now seen corresponding path program 1 times [2024-11-28 05:05:53,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:53,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092410036] [2024-11-28 05:05:53,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:53,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:54,046 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:05:54,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:54,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092410036] [2024-11-28 05:05:54,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092410036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:54,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:54,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:05:54,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705835541] [2024-11-28 05:05:54,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:54,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:05:54,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:54,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:05:54,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:05:54,048 INFO L87 Difference]: Start difference. First operand 662 states and 1124 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states 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 05:05:55,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:55,809 INFO L93 Difference]: Finished difference Result 1980 states and 3367 transitions. [2024-11-28 05:05:55,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:05:55,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-28 05:05:55,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:55,816 INFO L225 Difference]: With dead ends: 1980 [2024-11-28 05:05:55,816 INFO L226 Difference]: Without dead ends: 1320 [2024-11-28 05:05:55,817 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 05:05:55,818 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 343 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:55,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 77 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 05:05:55,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2024-11-28 05:05:55,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2024-11-28 05:05:55,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 1.620166793025019) internal successors, (2137), 1319 states have internal predecessors, (2137), 0 states have call successors, (0), 0 states 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 05:05:55,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 2137 transitions. [2024-11-28 05:05:55,881 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 2137 transitions. Word has length 127 [2024-11-28 05:05:55,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:55,881 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 2137 transitions. [2024-11-28 05:05:55,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states 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 05:05:55,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 2137 transitions. [2024-11-28 05:05:55,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 05:05:55,886 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:55,887 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:55,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:05:55,887 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:55,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:55,892 INFO L85 PathProgramCache]: Analyzing trace with hash 601628073, now seen corresponding path program 1 times [2024-11-28 05:05:55,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:55,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518532460] [2024-11-28 05:05:55,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:55,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:56,178 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:05:56,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:56,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518532460] [2024-11-28 05:05:56,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518532460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:56,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:56,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:05:56,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178487924] [2024-11-28 05:05:56,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:56,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:05:56,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:56,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:05:56,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:05:56,181 INFO L87 Difference]: Start difference. First operand 1320 states and 2137 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states 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 05:05:57,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:57,753 INFO L93 Difference]: Finished difference Result 3296 states and 5285 transitions. [2024-11-28 05:05:57,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:05:57,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-11-28 05:05:57,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:57,762 INFO L225 Difference]: With dead ends: 3296 [2024-11-28 05:05:57,762 INFO L226 Difference]: Without dead ends: 1978 [2024-11-28 05:05:57,764 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 05:05:57,765 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 381 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:57,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 155 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 05:05:57,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2024-11-28 05:05:57,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1978. [2024-11-28 05:05:57,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1977 states have (on average 1.3323216995447649) internal successors, (2634), 1977 states have internal predecessors, (2634), 0 states have call successors, (0), 0 states 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 05:05:57,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2634 transitions. [2024-11-28 05:05:57,817 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2634 transitions. Word has length 128 [2024-11-28 05:05:57,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:57,817 INFO L471 AbstractCegarLoop]: Abstraction has 1978 states and 2634 transitions. [2024-11-28 05:05:57,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states 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 05:05:57,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2634 transitions. [2024-11-28 05:05:57,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-28 05:05:57,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:57,824 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:05:57,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:05:57,825 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:57,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:57,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1357591119, now seen corresponding path program 1 times [2024-11-28 05:05:57,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:57,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557719051] [2024-11-28 05:05:57,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:57,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:58,291 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:05:58,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:58,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557719051] [2024-11-28 05:05:58,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557719051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:58,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:58,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:05:58,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136999302] [2024-11-28 05:05:58,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:58,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:05:58,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:58,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:05:58,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:05:58,294 INFO L87 Difference]: Start difference. First operand 1978 states and 2634 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 0 states 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 05:06:00,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:00,030 INFO L93 Difference]: Finished difference Result 5928 states and 7897 transitions. [2024-11-28 05:06:00,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:06:00,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 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 220 [2024-11-28 05:06:00,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:00,045 INFO L225 Difference]: With dead ends: 5928 [2024-11-28 05:06:00,045 INFO L226 Difference]: Without dead ends: 3952 [2024-11-28 05:06:00,048 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 05:06:00,049 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 183 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:00,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 257 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 05:06:00,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2024-11-28 05:06:00,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3952. [2024-11-28 05:06:00,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3952 states, 3951 states have (on average 1.2171602126044039) internal successors, (4809), 3951 states have internal predecessors, (4809), 0 states have call successors, (0), 0 states 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 05:06:00,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 4809 transitions. [2024-11-28 05:06:00,134 INFO L78 Accepts]: Start accepts. Automaton has 3952 states and 4809 transitions. Word has length 220 [2024-11-28 05:06:00,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:00,135 INFO L471 AbstractCegarLoop]: Abstraction has 3952 states and 4809 transitions. [2024-11-28 05:06:00,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 0 states 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 05:06:00,135 INFO L276 IsEmpty]: Start isEmpty. Operand 3952 states and 4809 transitions. [2024-11-28 05:06:00,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-28 05:06:00,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:00,140 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:06:00,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:06:00,140 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:00,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:00,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1544183199, now seen corresponding path program 1 times [2024-11-28 05:06:00,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:00,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518675193] [2024-11-28 05:06:00,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:00,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:00,705 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:06:00,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:00,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518675193] [2024-11-28 05:06:00,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518675193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:06:00,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089450252] [2024-11-28 05:06:00,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:00,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:06:00,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:06:00,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:06:00,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:06:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:00,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:06:00,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:06:01,423 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-28 05:06:01,423 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:06:01,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089450252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:01,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:06:01,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-28 05:06:01,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968409385] [2024-11-28 05:06:01,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:01,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:06:01,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:01,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:06:01,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:06:01,426 INFO L87 Difference]: Start difference. First operand 3952 states and 4809 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 2 states have internal predecessors, (247), 0 states have call successors, (0), 0 states 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 05:06:02,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:02,787 INFO L93 Difference]: Finished difference Result 5270 states and 6254 transitions. [2024-11-28 05:06:02,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:06:02,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 2 states have internal predecessors, (247), 0 states have call successors, (0), 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 304 [2024-11-28 05:06:02,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:02,804 INFO L225 Difference]: With dead ends: 5270 [2024-11-28 05:06:02,805 INFO L226 Difference]: Without dead ends: 5268 [2024-11-28 05:06:02,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:06:02,807 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 109 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:02,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 158 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 05:06:02,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5268 states. [2024-11-28 05:06:02,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5268 to 4610. [2024-11-28 05:06:02,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4610 states, 4609 states have (on average 1.2013451941852897) internal successors, (5537), 4609 states have internal predecessors, (5537), 0 states have call successors, (0), 0 states 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 05:06:02,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 5537 transitions. [2024-11-28 05:06:02,901 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 5537 transitions. Word has length 304 [2024-11-28 05:06:02,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:02,902 INFO L471 AbstractCegarLoop]: Abstraction has 4610 states and 5537 transitions. [2024-11-28 05:06:02,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 2 states have internal predecessors, (247), 0 states have call successors, (0), 0 states 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 05:06:02,902 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 5537 transitions. [2024-11-28 05:06:02,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-11-28 05:06:02,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:02,910 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:02,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 05:06:03,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:06:03,114 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:03,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:03,116 INFO L85 PathProgramCache]: Analyzing trace with hash -2079847568, now seen corresponding path program 1 times [2024-11-28 05:06:03,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:03,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73303688] [2024-11-28 05:06:03,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:03,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:04,117 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-28 05:06:04,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:04,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73303688] [2024-11-28 05:06:04,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73303688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:04,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:04,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:06:04,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385606223] [2024-11-28 05:06:04,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:04,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:06:04,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:04,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:06:04,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:06:04,124 INFO L87 Difference]: Start difference. First operand 4610 states and 5537 transitions. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states 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 05:06:05,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:05,849 INFO L93 Difference]: Finished difference Result 9547 states and 11413 transitions. [2024-11-28 05:06:05,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:06:05,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 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 413 [2024-11-28 05:06:05,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:05,864 INFO L225 Difference]: With dead ends: 9547 [2024-11-28 05:06:05,864 INFO L226 Difference]: Without dead ends: 4939 [2024-11-28 05:06:05,869 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 05:06:05,870 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 127 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:05,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 322 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 05:06:05,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4939 states. [2024-11-28 05:06:05,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4939 to 4939. [2024-11-28 05:06:05,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4939 states, 4938 states have (on average 1.1891454029971649) internal successors, (5872), 4938 states have internal predecessors, (5872), 0 states have call successors, (0), 0 states 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 05:06:05,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4939 states to 4939 states and 5872 transitions. [2024-11-28 05:06:05,957 INFO L78 Accepts]: Start accepts. Automaton has 4939 states and 5872 transitions. Word has length 413 [2024-11-28 05:06:05,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:05,958 INFO L471 AbstractCegarLoop]: Abstraction has 4939 states and 5872 transitions. [2024-11-28 05:06:05,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states 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 05:06:05,959 INFO L276 IsEmpty]: Start isEmpty. Operand 4939 states and 5872 transitions. [2024-11-28 05:06:05,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2024-11-28 05:06:05,969 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:05,970 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:05,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:06:05,971 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:05,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:05,971 INFO L85 PathProgramCache]: Analyzing trace with hash -832462339, now seen corresponding path program 1 times [2024-11-28 05:06:05,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:05,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247892150] [2024-11-28 05:06:05,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:05,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:07,253 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-28 05:06:07,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:07,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247892150] [2024-11-28 05:06:07,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247892150] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:06:07,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761909485] [2024-11-28 05:06:07,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:07,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:06:07,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:06:07,256 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:06:07,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:06:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:07,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:06:07,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:06:08,321 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-28 05:06:08,324 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:06:14,462 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-28 05:06:14,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761909485] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:06:14,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:06:14,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-28 05:06:14,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365307134] [2024-11-28 05:06:14,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:06:14,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:06:14,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:14,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:06:14,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:06:14,468 INFO L87 Difference]: Start difference. First operand 4939 states and 5872 transitions. Second operand has 8 states, 8 states have (on average 111.5) internal successors, (892), 7 states have internal predecessors, (892), 0 states have call successors, (0), 0 states 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 05:06:20,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:20,803 INFO L93 Difference]: Finished difference Result 16785 states and 20176 transitions. [2024-11-28 05:06:20,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:06:20,804 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 111.5) internal successors, (892), 7 states have internal predecessors, (892), 0 states have call successors, (0), 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 475 [2024-11-28 05:06:20,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:20,836 INFO L225 Difference]: With dead ends: 16785 [2024-11-28 05:06:20,836 INFO L226 Difference]: Without dead ends: 12177 [2024-11-28 05:06:20,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 954 GetRequests, 945 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:06:20,842 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 1270 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 4183 mSolverCounterSat, 1582 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 5765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1582 IncrementalHoareTripleChecker+Valid, 4183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:20,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 42 Invalid, 5765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1582 Valid, 4183 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-28 05:06:20,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12177 states. [2024-11-28 05:06:21,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12177 to 10861. [2024-11-28 05:06:21,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10861 states, 10860 states have (on average 1.1918968692449357) internal successors, (12944), 10860 states have internal predecessors, (12944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:06:21,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10861 states to 10861 states and 12944 transitions. [2024-11-28 05:06:21,036 INFO L78 Accepts]: Start accepts. Automaton has 10861 states and 12944 transitions. Word has length 475 [2024-11-28 05:06:21,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:21,037 INFO L471 AbstractCegarLoop]: Abstraction has 10861 states and 12944 transitions. [2024-11-28 05:06:21,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 111.5) internal successors, (892), 7 states have internal predecessors, (892), 0 states have call successors, (0), 0 states 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 05:06:21,038 INFO L276 IsEmpty]: Start isEmpty. Operand 10861 states and 12944 transitions. [2024-11-28 05:06:21,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2024-11-28 05:06:21,055 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:21,055 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 05:06:21,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 05:06:21,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:06:21,260 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:21,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:21,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1917555893, now seen corresponding path program 1 times [2024-11-28 05:06:21,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:21,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951117402] [2024-11-28 05:06:21,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:21,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:21,698 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-28 05:06:21,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:21,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951117402] [2024-11-28 05:06:21,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951117402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:21,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:21,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:06:21,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46711410] [2024-11-28 05:06:21,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:21,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:06:21,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:21,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:06:21,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:06:21,701 INFO L87 Difference]: Start difference. First operand 10861 states and 12944 transitions. Second operand has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states 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 05:06:23,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:23,488 INFO L93 Difference]: Finished difference Result 25010 states and 30301 transitions. [2024-11-28 05:06:23,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:06:23,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 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 562 [2024-11-28 05:06:23,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:23,521 INFO L225 Difference]: With dead ends: 25010 [2024-11-28 05:06:23,521 INFO L226 Difference]: Without dead ends: 14809 [2024-11-28 05:06:23,530 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 05:06:23,531 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 183 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:23,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 245 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 05:06:23,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14809 states. [2024-11-28 05:06:23,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14809 to 14809. [2024-11-28 05:06:23,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14809 states, 14808 states have (on average 1.1782144786601836) internal successors, (17447), 14808 states have internal predecessors, (17447), 0 states have call successors, (0), 0 states 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 05:06:23,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14809 states to 14809 states and 17447 transitions. [2024-11-28 05:06:23,755 INFO L78 Accepts]: Start accepts. Automaton has 14809 states and 17447 transitions. Word has length 562 [2024-11-28 05:06:23,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:23,756 INFO L471 AbstractCegarLoop]: Abstraction has 14809 states and 17447 transitions. [2024-11-28 05:06:23,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states 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 05:06:23,756 INFO L276 IsEmpty]: Start isEmpty. Operand 14809 states and 17447 transitions. [2024-11-28 05:06:23,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2024-11-28 05:06:23,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:23,765 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:23,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:06:23,766 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:23,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:23,768 INFO L85 PathProgramCache]: Analyzing trace with hash 788273314, now seen corresponding path program 1 times [2024-11-28 05:06:23,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:23,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460857063] [2024-11-28 05:06:23,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:23,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:24,585 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 472 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-28 05:06:24,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:24,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460857063] [2024-11-28 05:06:24,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460857063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:24,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:24,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:06:24,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878775544] [2024-11-28 05:06:24,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:24,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:06:24,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:24,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:06:24,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:06:24,587 INFO L87 Difference]: Start difference. First operand 14809 states and 17447 transitions. Second operand has 7 states, 7 states have (on average 56.57142857142857) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 states 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 05:06:26,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:26,464 INFO L93 Difference]: Finished difference Result 28363 states and 33579 transitions. [2024-11-28 05:06:26,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:06:26,465 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 56.57142857142857) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 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 566 [2024-11-28 05:06:26,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:26,486 INFO L225 Difference]: With dead ends: 28363 [2024-11-28 05:06:26,486 INFO L226 Difference]: Without dead ends: 13906 [2024-11-28 05:06:26,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:06:26,497 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 292 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 2177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:26,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 287 Invalid, 2177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 05:06:26,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13906 states. [2024-11-28 05:06:26,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13906 to 12566. [2024-11-28 05:06:26,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12566 states, 12565 states have (on average 1.0826104257859133) internal successors, (13603), 12565 states have internal predecessors, (13603), 0 states have call successors, (0), 0 states 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 05:06:26,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12566 states to 12566 states and 13603 transitions. [2024-11-28 05:06:26,773 INFO L78 Accepts]: Start accepts. Automaton has 12566 states and 13603 transitions. Word has length 566 [2024-11-28 05:06:26,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:26,773 INFO L471 AbstractCegarLoop]: Abstraction has 12566 states and 13603 transitions. [2024-11-28 05:06:26,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.57142857142857) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 states 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 05:06:26,773 INFO L276 IsEmpty]: Start isEmpty. Operand 12566 states and 13603 transitions. [2024-11-28 05:06:26,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 667 [2024-11-28 05:06:26,782 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:26,783 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:26,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:06:26,783 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:26,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:26,784 INFO L85 PathProgramCache]: Analyzing trace with hash -2040208118, now seen corresponding path program 1 times [2024-11-28 05:06:26,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:26,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026172263] [2024-11-28 05:06:26,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:26,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:27,250 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 739 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-28 05:06:27,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:27,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026172263] [2024-11-28 05:06:27,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026172263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:27,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:27,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:06:27,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024381498] [2024-11-28 05:06:27,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:27,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:06:27,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:27,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:06:27,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:06:27,253 INFO L87 Difference]: Start difference. First operand 12566 states and 13603 transitions. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states 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 05:06:28,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:28,518 INFO L93 Difference]: Finished difference Result 27762 states and 30174 transitions. [2024-11-28 05:06:28,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:06:28,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 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 666 [2024-11-28 05:06:28,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:28,547 INFO L225 Difference]: With dead ends: 27762 [2024-11-28 05:06:28,547 INFO L226 Difference]: Without dead ends: 15856 [2024-11-28 05:06:28,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:06:28,557 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 194 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:28,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 41 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 05:06:28,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15856 states. [2024-11-28 05:06:28,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15856 to 15198. [2024-11-28 05:06:28,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15198 states, 15197 states have (on average 1.08475356978351) internal successors, (16485), 15197 states have internal predecessors, (16485), 0 states have call successors, (0), 0 states 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 05:06:28,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15198 states to 15198 states and 16485 transitions. [2024-11-28 05:06:28,850 INFO L78 Accepts]: Start accepts. Automaton has 15198 states and 16485 transitions. Word has length 666 [2024-11-28 05:06:28,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:28,852 INFO L471 AbstractCegarLoop]: Abstraction has 15198 states and 16485 transitions. [2024-11-28 05:06:28,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states 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 05:06:28,852 INFO L276 IsEmpty]: Start isEmpty. Operand 15198 states and 16485 transitions. [2024-11-28 05:06:28,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 721 [2024-11-28 05:06:28,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:28,868 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 05:06:28,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 05:06:28,869 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:28,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:28,871 INFO L85 PathProgramCache]: Analyzing trace with hash -2128512303, now seen corresponding path program 1 times [2024-11-28 05:06:28,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:28,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471069115] [2024-11-28 05:06:28,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:28,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:30,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1028 backedges. 803 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-28 05:06:30,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:30,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471069115] [2024-11-28 05:06:30,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471069115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:30,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:30,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:06:30,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300086721] [2024-11-28 05:06:30,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:30,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:06:30,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:30,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:06:30,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:06:30,009 INFO L87 Difference]: Start difference. First operand 15198 states and 16485 transitions. Second operand has 4 states, 4 states have (on average 139.0) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states 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 05:06:31,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:31,194 INFO L93 Difference]: Finished difference Result 29736 states and 32301 transitions. [2024-11-28 05:06:31,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:06:31,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 139.0) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 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 720 [2024-11-28 05:06:31,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:31,218 INFO L225 Difference]: With dead ends: 29736 [2024-11-28 05:06:31,219 INFO L226 Difference]: Without dead ends: 15198 [2024-11-28 05:06:31,229 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 05:06:31,230 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 173 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:31,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 132 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 05:06:31,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15198 states. [2024-11-28 05:06:31,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15198 to 15198. [2024-11-28 05:06:31,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15198 states, 15197 states have (on average 1.0845561624004738) internal successors, (16482), 15197 states have internal predecessors, (16482), 0 states have call successors, (0), 0 states 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 05:06:31,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15198 states to 15198 states and 16482 transitions. [2024-11-28 05:06:31,407 INFO L78 Accepts]: Start accepts. Automaton has 15198 states and 16482 transitions. Word has length 720 [2024-11-28 05:06:31,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:31,408 INFO L471 AbstractCegarLoop]: Abstraction has 15198 states and 16482 transitions. [2024-11-28 05:06:31,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 139.0) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states 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 05:06:31,409 INFO L276 IsEmpty]: Start isEmpty. Operand 15198 states and 16482 transitions. [2024-11-28 05:06:31,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2024-11-28 05:06:31,416 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:31,417 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:31,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 05:06:31,417 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:31,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:31,418 INFO L85 PathProgramCache]: Analyzing trace with hash 479289470, now seen corresponding path program 1 times [2024-11-28 05:06:31,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:31,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790737338] [2024-11-28 05:06:31,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:31,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:32,667 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 544 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2024-11-28 05:06:32,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:32,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790737338] [2024-11-28 05:06:32,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790737338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:32,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:32,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:06:32,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134061691] [2024-11-28 05:06:32,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:32,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:06:32,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:32,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:06:32,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:06:32,670 INFO L87 Difference]: Start difference. First operand 15198 states and 16482 transitions. Second operand has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 0 states 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 05:06:34,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:34,145 INFO L93 Difference]: Finished difference Result 15588 states and 16879 transitions. [2024-11-28 05:06:34,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:06:34,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 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 722 [2024-11-28 05:06:34,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:34,159 INFO L225 Difference]: With dead ends: 15588 [2024-11-28 05:06:34,159 INFO L226 Difference]: Without dead ends: 15527 [2024-11-28 05:06:34,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 05:06:34,163 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 505 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:34,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 17 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 05:06:34,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15527 states. [2024-11-28 05:06:34,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15527 to 15198. [2024-11-28 05:06:34,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15198 states, 15197 states have (on average 1.0839639402513654) internal successors, (16473), 15197 states have internal predecessors, (16473), 0 states have call successors, (0), 0 states 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 05:06:34,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15198 states to 15198 states and 16473 transitions. [2024-11-28 05:06:34,324 INFO L78 Accepts]: Start accepts. Automaton has 15198 states and 16473 transitions. Word has length 722 [2024-11-28 05:06:34,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:34,325 INFO L471 AbstractCegarLoop]: Abstraction has 15198 states and 16473 transitions. [2024-11-28 05:06:34,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 0 states 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 05:06:34,325 INFO L276 IsEmpty]: Start isEmpty. Operand 15198 states and 16473 transitions. [2024-11-28 05:06:34,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2024-11-28 05:06:34,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:34,336 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, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:34,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 05:06:34,336 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:34,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:34,337 INFO L85 PathProgramCache]: Analyzing trace with hash -752870972, now seen corresponding path program 1 times [2024-11-28 05:06:34,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:34,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266668601] [2024-11-28 05:06:34,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:34,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:35,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 593 proven. 228 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-28 05:06:35,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:35,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266668601] [2024-11-28 05:06:35,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266668601] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:06:35,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037750787] [2024-11-28 05:06:35,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:35,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:06:35,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:06:35,505 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:06:35,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:06:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:35,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 05:06:35,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:06:38,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 637 proven. 201 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-28 05:06:38,937 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:06:43,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 637 proven. 201 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-28 05:06:43,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037750787] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:06:43,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:06:43,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2024-11-28 05:06:43,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321565310] [2024-11-28 05:06:43,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:06:43,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 05:06:43,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:43,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 05:06:43,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:06:43,502 INFO L87 Difference]: Start difference. First operand 15198 states and 16473 transitions. Second operand has 10 states, 10 states have (on average 160.5) internal successors, (1605), 9 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states 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 05:06:48,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:48,876 INFO L93 Difference]: Finished difference Result 31052 states and 33662 transitions. [2024-11-28 05:06:48,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:06:48,877 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 160.5) internal successors, (1605), 9 states have internal predecessors, (1605), 0 states have call successors, (0), 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 810 [2024-11-28 05:06:48,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:48,891 INFO L225 Difference]: With dead ends: 31052 [2024-11-28 05:06:48,891 INFO L226 Difference]: Without dead ends: 16514 [2024-11-28 05:06:48,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1629 GetRequests, 1615 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-11-28 05:06:48,901 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 1627 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 7535 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 7804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 7535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:48,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1627 Valid, 95 Invalid, 7804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 7535 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-28 05:06:48,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16514 states. [2024-11-28 05:06:49,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16514 to 14869. [2024-11-28 05:06:49,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14869 states, 14868 states have (on average 1.0722356739305892) internal successors, (15942), 14868 states have internal predecessors, (15942), 0 states have call successors, (0), 0 states 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 05:06:49,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14869 states to 14869 states and 15942 transitions. [2024-11-28 05:06:49,155 INFO L78 Accepts]: Start accepts. Automaton has 14869 states and 15942 transitions. Word has length 810 [2024-11-28 05:06:49,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:49,156 INFO L471 AbstractCegarLoop]: Abstraction has 14869 states and 15942 transitions. [2024-11-28 05:06:49,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 160.5) internal successors, (1605), 9 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states 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 05:06:49,156 INFO L276 IsEmpty]: Start isEmpty. Operand 14869 states and 15942 transitions. [2024-11-28 05:06:49,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 870 [2024-11-28 05:06:49,176 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:49,177 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-28 05:06:49,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:06:49,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 05:06:49,378 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:49,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:49,378 INFO L85 PathProgramCache]: Analyzing trace with hash -38982213, now seen corresponding path program 1 times [2024-11-28 05:06:49,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:49,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150509462] [2024-11-28 05:06:49,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:49,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:50,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 941 proven. 100 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-28 05:06:50,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:50,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150509462] [2024-11-28 05:06:50,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150509462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:06:50,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468732739] [2024-11-28 05:06:50,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:50,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:06:50,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:06:50,449 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:06:50,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:06:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:50,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 05:06:50,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:06:53,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 249 proven. 851 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-28 05:06:53,419 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:06:56,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 308 proven. 792 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-28 05:06:56,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468732739] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:06:56,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:06:56,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 12 [2024-11-28 05:06:56,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274409293] [2024-11-28 05:06:56,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:06:56,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:06:56,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:56,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:06:56,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:06:56,299 INFO L87 Difference]: Start difference. First operand 14869 states and 15942 transitions. Second operand has 13 states, 13 states have (on average 118.0) internal successors, (1534), 12 states have internal predecessors, (1534), 0 states have call successors, (0), 0 states 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 05:07:05,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:07:05,685 INFO L93 Difference]: Finished difference Result 38814 states and 41504 transitions. [2024-11-28 05:07:05,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 05:07:05,685 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 118.0) internal successors, (1534), 12 states have internal predecessors, (1534), 0 states have call successors, (0), 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 869 [2024-11-28 05:07:05,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:07:05,701 INFO L225 Difference]: With dead ends: 38814 [2024-11-28 05:07:05,701 INFO L226 Difference]: Without dead ends: 24486 [2024-11-28 05:07:05,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1752 GetRequests, 1729 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=195, Invalid=405, Unknown=0, NotChecked=0, Total=600 [2024-11-28 05:07:05,709 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 3880 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 12347 mSolverCounterSat, 713 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3880 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 13060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 713 IncrementalHoareTripleChecker+Valid, 12347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:07:05,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3880 Valid, 139 Invalid, 13060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [713 Valid, 12347 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2024-11-28 05:07:05,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24486 states. [2024-11-28 05:07:05,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24486 to 19475. [2024-11-28 05:07:05,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19475 states, 19474 states have (on average 1.0648557050426208) internal successors, (20737), 19474 states have internal predecessors, (20737), 0 states have call successors, (0), 0 states 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 05:07:05,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19475 states to 19475 states and 20737 transitions. [2024-11-28 05:07:05,915 INFO L78 Accepts]: Start accepts. Automaton has 19475 states and 20737 transitions. Word has length 869 [2024-11-28 05:07:05,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:07:05,916 INFO L471 AbstractCegarLoop]: Abstraction has 19475 states and 20737 transitions. [2024-11-28 05:07:05,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 118.0) internal successors, (1534), 12 states have internal predecessors, (1534), 0 states have call successors, (0), 0 states 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 05:07:05,916 INFO L276 IsEmpty]: Start isEmpty. Operand 19475 states and 20737 transitions. [2024-11-28 05:07:05,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 992 [2024-11-28 05:07:05,931 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:07:05,931 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:07:05,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:06,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 05:07:06,132 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:07:06,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:06,133 INFO L85 PathProgramCache]: Analyzing trace with hash -845445616, now seen corresponding path program 1 times [2024-11-28 05:07:06,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:06,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294363357] [2024-11-28 05:07:06,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:06,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:07,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2148 backedges. 1327 proven. 0 refuted. 0 times theorem prover too weak. 821 trivial. 0 not checked. [2024-11-28 05:07:07,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:07,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294363357] [2024-11-28 05:07:07,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294363357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:07,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:07,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:07:07,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824048531] [2024-11-28 05:07:07,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:07,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:07:07,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:07,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:07:07,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:07:07,038 INFO L87 Difference]: Start difference. First operand 19475 states and 20737 transitions. Second operand has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states 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 05:07:08,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:07:08,117 INFO L93 Difference]: Finished difference Result 42238 states and 45078 transitions. [2024-11-28 05:07:08,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:07:08,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 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 991 [2024-11-28 05:07:08,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:07:08,132 INFO L225 Difference]: With dead ends: 42238 [2024-11-28 05:07:08,132 INFO L226 Difference]: Without dead ends: 23094 [2024-11-28 05:07:08,142 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 05:07:08,143 INFO L435 NwaCegarLoop]: 441 mSDtfsCounter, 220 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:07:08,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 447 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:07:08,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23094 states. [2024-11-28 05:07:08,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23094 to 21778. [2024-11-28 05:07:08,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21778 states, 21777 states have (on average 1.0590990494558479) internal successors, (23064), 21777 states have internal predecessors, (23064), 0 states have call successors, (0), 0 states 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 05:07:08,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21778 states to 21778 states and 23064 transitions. [2024-11-28 05:07:08,410 INFO L78 Accepts]: Start accepts. Automaton has 21778 states and 23064 transitions. Word has length 991 [2024-11-28 05:07:08,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:07:08,411 INFO L471 AbstractCegarLoop]: Abstraction has 21778 states and 23064 transitions. [2024-11-28 05:07:08,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states 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 05:07:08,412 INFO L276 IsEmpty]: Start isEmpty. Operand 21778 states and 23064 transitions. [2024-11-28 05:07:08,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1009 [2024-11-28 05:07:08,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:07:08,421 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:07:08,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 05:07:08,421 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:07:08,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:08,421 INFO L85 PathProgramCache]: Analyzing trace with hash -2010910591, now seen corresponding path program 1 times [2024-11-28 05:07:08,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:08,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304457101] [2024-11-28 05:07:08,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:08,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:09,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2237 backedges. 975 proven. 0 refuted. 0 times theorem prover too weak. 1262 trivial. 0 not checked. [2024-11-28 05:07:09,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:09,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304457101] [2024-11-28 05:07:09,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304457101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:09,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:09,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:07:09,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045482667] [2024-11-28 05:07:09,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:09,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:07:09,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:09,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:07:09,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:07:09,244 INFO L87 Difference]: Start difference. First operand 21778 states and 23064 transitions. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states 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 05:07:10,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:07:10,460 INFO L93 Difference]: Finished difference Result 49476 states and 52470 transitions. [2024-11-28 05:07:10,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:07:10,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 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 1008 [2024-11-28 05:07:10,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:07:10,489 INFO L225 Difference]: With dead ends: 49476 [2024-11-28 05:07:10,489 INFO L226 Difference]: Without dead ends: 26384 [2024-11-28 05:07:10,503 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 05:07:10,504 INFO L435 NwaCegarLoop]: 427 mSDtfsCounter, 210 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:07:10,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 432 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 05:07:10,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26384 states. [2024-11-28 05:07:10,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26384 to 25397. [2024-11-28 05:07:10,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25397 states, 25396 states have (on average 1.044888958891164) internal successors, (26536), 25396 states have internal predecessors, (26536), 0 states have call successors, (0), 0 states 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 05:07:10,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25397 states to 25397 states and 26536 transitions. [2024-11-28 05:07:10,807 INFO L78 Accepts]: Start accepts. Automaton has 25397 states and 26536 transitions. Word has length 1008 [2024-11-28 05:07:10,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:07:10,808 INFO L471 AbstractCegarLoop]: Abstraction has 25397 states and 26536 transitions. [2024-11-28 05:07:10,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states 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 05:07:10,808 INFO L276 IsEmpty]: Start isEmpty. Operand 25397 states and 26536 transitions. [2024-11-28 05:07:10,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1092 [2024-11-28 05:07:10,819 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:07:10,819 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:10,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 05:07:10,819 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:07:10,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:10,820 INFO L85 PathProgramCache]: Analyzing trace with hash 541362834, now seen corresponding path program 1 times [2024-11-28 05:07:10,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:10,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248038184] [2024-11-28 05:07:10,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:10,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:12,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2401 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2024-11-28 05:07:12,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:12,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248038184] [2024-11-28 05:07:12,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248038184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:12,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:12,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:07:12,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245431409] [2024-11-28 05:07:12,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:12,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:07:12,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:12,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:07:12,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:07:12,290 INFO L87 Difference]: Start difference. First operand 25397 states and 26536 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states 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 05:07:13,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:07:13,259 INFO L93 Difference]: Finished difference Result 50463 states and 52739 transitions. [2024-11-28 05:07:13,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:07:13,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 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 1091 [2024-11-28 05:07:13,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:07:13,277 INFO L225 Difference]: With dead ends: 50463 [2024-11-28 05:07:13,277 INFO L226 Difference]: Without dead ends: 25068 [2024-11-28 05:07:13,286 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 05:07:13,286 INFO L435 NwaCegarLoop]: 365 mSDtfsCounter, 279 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:07:13,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 371 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:07:13,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25068 states. [2024-11-28 05:07:13,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25068 to 23423. [2024-11-28 05:07:13,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23423 states, 23422 states have (on average 1.035351379045342) internal successors, (24250), 23422 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states 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 05:07:13,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23423 states to 23423 states and 24250 transitions. [2024-11-28 05:07:13,542 INFO L78 Accepts]: Start accepts. Automaton has 23423 states and 24250 transitions. Word has length 1091 [2024-11-28 05:07:13,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:07:13,543 INFO L471 AbstractCegarLoop]: Abstraction has 23423 states and 24250 transitions. [2024-11-28 05:07:13,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states 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 05:07:13,543 INFO L276 IsEmpty]: Start isEmpty. Operand 23423 states and 24250 transitions. [2024-11-28 05:07:13,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1146 [2024-11-28 05:07:13,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:07:13,555 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:13,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 05:07:13,555 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:07:13,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:13,556 INFO L85 PathProgramCache]: Analyzing trace with hash 218918824, now seen corresponding path program 1 times [2024-11-28 05:07:13,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:13,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433255744] [2024-11-28 05:07:13,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:13,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:14,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2194 backedges. 1105 proven. 0 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2024-11-28 05:07:14,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:14,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433255744] [2024-11-28 05:07:14,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433255744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:14,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:14,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:07:14,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102060272] [2024-11-28 05:07:14,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:14,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:07:14,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:14,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:07:14,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:07:14,465 INFO L87 Difference]: Start difference. First operand 23423 states and 24250 transitions. Second operand has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states 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 05:07:15,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:07:15,519 INFO L93 Difference]: Finished difference Result 46515 states and 48167 transitions. [2024-11-28 05:07:15,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:07:15,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 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 1145 [2024-11-28 05:07:15,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:07:15,538 INFO L225 Difference]: With dead ends: 46515 [2024-11-28 05:07:15,538 INFO L226 Difference]: Without dead ends: 23423 [2024-11-28 05:07:15,549 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 05:07:15,549 INFO L435 NwaCegarLoop]: 425 mSDtfsCounter, 61 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:07:15,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 431 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:07:15,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23423 states. [2024-11-28 05:07:15,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23423 to 22107. [2024-11-28 05:07:15,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22107 states, 22106 states have (on average 1.0294942549534063) internal successors, (22758), 22106 states have internal predecessors, (22758), 0 states have call successors, (0), 0 states 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 05:07:15,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22107 states to 22107 states and 22758 transitions. [2024-11-28 05:07:15,850 INFO L78 Accepts]: Start accepts. Automaton has 22107 states and 22758 transitions. Word has length 1145 [2024-11-28 05:07:15,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:07:15,851 INFO L471 AbstractCegarLoop]: Abstraction has 22107 states and 22758 transitions. [2024-11-28 05:07:15,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states 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 05:07:15,851 INFO L276 IsEmpty]: Start isEmpty. Operand 22107 states and 22758 transitions. [2024-11-28 05:07:15,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1206 [2024-11-28 05:07:15,862 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:07:15,862 INFO L218 NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 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 05:07:15,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 05:07:15,862 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:07:15,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:15,863 INFO L85 PathProgramCache]: Analyzing trace with hash 431588237, now seen corresponding path program 1 times [2024-11-28 05:07:15,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:15,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102125749] [2024-11-28 05:07:15,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:15,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:16,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2165 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 1871 trivial. 0 not checked. [2024-11-28 05:07:16,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:16,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102125749] [2024-11-28 05:07:16,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102125749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:16,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:16,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:07:16,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195319236] [2024-11-28 05:07:16,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:16,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:07:16,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:16,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:07:16,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:07:16,634 INFO L87 Difference]: Start difference. First operand 22107 states and 22758 transitions. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states 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 05:07:17,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:07:17,522 INFO L93 Difference]: Finished difference Result 43883 states and 45183 transitions. [2024-11-28 05:07:17,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:07:17,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 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 1205 [2024-11-28 05:07:17,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:07:17,536 INFO L225 Difference]: With dead ends: 43883 [2024-11-28 05:07:17,537 INFO L226 Difference]: Without dead ends: 22107 [2024-11-28 05:07:17,547 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 05:07:17,547 INFO L435 NwaCegarLoop]: 373 mSDtfsCounter, 306 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:07:17,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 379 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:07:17,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22107 states. [2024-11-28 05:07:17,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22107 to 21778. [2024-11-28 05:07:17,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21778 states, 21777 states have (on average 1.0264040042246407) internal successors, (22352), 21777 states have internal predecessors, (22352), 0 states have call successors, (0), 0 states 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 05:07:17,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21778 states to 21778 states and 22352 transitions. [2024-11-28 05:07:17,702 INFO L78 Accepts]: Start accepts. Automaton has 21778 states and 22352 transitions. Word has length 1205 [2024-11-28 05:07:17,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:07:17,704 INFO L471 AbstractCegarLoop]: Abstraction has 21778 states and 22352 transitions. [2024-11-28 05:07:17,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states 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 05:07:17,704 INFO L276 IsEmpty]: Start isEmpty. Operand 21778 states and 22352 transitions. [2024-11-28 05:07:17,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1470 [2024-11-28 05:07:17,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:07:17,725 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:17,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 05:07:17,725 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:07:17,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:17,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1428267150, now seen corresponding path program 1 times [2024-11-28 05:07:17,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:17,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401917323] [2024-11-28 05:07:17,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:17,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:18,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3567 backedges. 412 proven. 0 refuted. 0 times theorem prover too weak. 3155 trivial. 0 not checked. [2024-11-28 05:07:18,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:18,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401917323] [2024-11-28 05:07:18,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401917323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:18,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:18,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:07:18,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449741538] [2024-11-28 05:07:18,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:18,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:07:18,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:18,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:07:18,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:07:18,636 INFO L87 Difference]: Start difference. First operand 21778 states and 22352 transitions. Second operand has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 0 states 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 05:07:20,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:07:20,224 INFO L93 Difference]: Finished difference Result 45881 states and 47077 transitions. [2024-11-28 05:07:20,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:07:20,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 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 1469 [2024-11-28 05:07:20,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:07:20,311 INFO L225 Difference]: With dead ends: 45881 [2024-11-28 05:07:20,311 INFO L226 Difference]: Without dead ends: 23423 [2024-11-28 05:07:20,317 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 05:07:20,318 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 605 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 1551 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:07:20,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 56 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1551 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 05:07:20,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23423 states. [2024-11-28 05:07:20,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23423 to 21120. [2024-11-28 05:07:20,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21120 states, 21119 states have (on average 1.0257587953975094) internal successors, (21663), 21119 states have internal predecessors, (21663), 0 states have call successors, (0), 0 states 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 05:07:20,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21120 states to 21120 states and 21663 transitions. [2024-11-28 05:07:20,601 INFO L78 Accepts]: Start accepts. Automaton has 21120 states and 21663 transitions. Word has length 1469 [2024-11-28 05:07:20,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:07:20,602 INFO L471 AbstractCegarLoop]: Abstraction has 21120 states and 21663 transitions. [2024-11-28 05:07:20,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 0 states 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 05:07:20,602 INFO L276 IsEmpty]: Start isEmpty. Operand 21120 states and 21663 transitions. [2024-11-28 05:07:20,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1530 [2024-11-28 05:07:20,653 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:07:20,653 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, 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, 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, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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 05:07:20,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 05:07:20,654 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:07:20,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:20,654 INFO L85 PathProgramCache]: Analyzing trace with hash 158822930, now seen corresponding path program 1 times [2024-11-28 05:07:20,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:20,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569696680] [2024-11-28 05:07:20,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:20,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:21,791 INFO L134 CoverageAnalysis]: Checked inductivity of 5206 backedges. 2562 proven. 0 refuted. 0 times theorem prover too weak. 2644 trivial. 0 not checked. [2024-11-28 05:07:21,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:21,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569696680] [2024-11-28 05:07:21,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569696680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:21,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:21,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:07:21,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146301672] [2024-11-28 05:07:21,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:21,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:07:21,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:21,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:07:21,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:07:21,793 INFO L87 Difference]: Start difference. First operand 21120 states and 21663 transitions. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states 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 05:07:22,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:07:22,913 INFO L93 Difference]: Finished difference Result 44541 states and 45722 transitions. [2024-11-28 05:07:22,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:07:22,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 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 1529 [2024-11-28 05:07:22,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:07:22,932 INFO L225 Difference]: With dead ends: 44541 [2024-11-28 05:07:22,932 INFO L226 Difference]: Without dead ends: 21778 [2024-11-28 05:07:22,938 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 05:07:22,940 INFO L435 NwaCegarLoop]: 412 mSDtfsCounter, 205 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:07:22,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 418 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:07:22,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21778 states. [2024-11-28 05:07:23,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21778 to 20462. [2024-11-28 05:07:23,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20462 states, 20461 states have (on average 1.0217975661013636) internal successors, (20907), 20461 states have internal predecessors, (20907), 0 states have call successors, (0), 0 states 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 05:07:23,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20462 states to 20462 states and 20907 transitions. [2024-11-28 05:07:23,102 INFO L78 Accepts]: Start accepts. Automaton has 20462 states and 20907 transitions. Word has length 1529 [2024-11-28 05:07:23,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:07:23,103 INFO L471 AbstractCegarLoop]: Abstraction has 20462 states and 20907 transitions. [2024-11-28 05:07:23,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states 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 05:07:23,103 INFO L276 IsEmpty]: Start isEmpty. Operand 20462 states and 20907 transitions. [2024-11-28 05:07:23,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1557 [2024-11-28 05:07:23,131 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:07:23,132 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, 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, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-28 05:07:23,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 05:07:23,132 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:07:23,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:23,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1952310525, now seen corresponding path program 1 times [2024-11-28 05:07:23,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:23,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719302557] [2024-11-28 05:07:23,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:23,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:24,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4281 backedges. 2813 proven. 35 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2024-11-28 05:07:24,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:24,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719302557] [2024-11-28 05:07:24,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719302557] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:07:24,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306627443] [2024-11-28 05:07:24,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:24,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:07:24,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:24,908 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:07:24,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:07:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:25,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 1797 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:07:25,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:27,896 INFO L134 CoverageAnalysis]: Checked inductivity of 4281 backedges. 2813 proven. 35 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2024-11-28 05:07:27,896 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:07:32,216 INFO L134 CoverageAnalysis]: Checked inductivity of 4281 backedges. 2526 proven. 322 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2024-11-28 05:07:32,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306627443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:07:32,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:07:32,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2024-11-28 05:07:32,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383447880] [2024-11-28 05:07:32,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:07:32,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:07:32,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:32,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:07:32,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:07:32,221 INFO L87 Difference]: Start difference. First operand 20462 states and 20907 transitions. Second operand has 6 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states 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 05:07:34,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:07:34,604 INFO L93 Difference]: Finished difference Result 40922 states and 41817 transitions. [2024-11-28 05:07:34,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:07:34,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 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 1556 [2024-11-28 05:07:34,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:07:34,617 INFO L225 Difference]: With dead ends: 40922 [2024-11-28 05:07:34,617 INFO L226 Difference]: Without dead ends: 20791 [2024-11-28 05:07:34,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3119 GetRequests, 3113 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:07:34,626 INFO L435 NwaCegarLoop]: 416 mSDtfsCounter, 419 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 3042 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 3065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:07:34,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 560 Invalid, 3065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 3042 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 05:07:34,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20791 states. [2024-11-28 05:07:34,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20791 to 20791. [2024-11-28 05:07:34,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20791 states, 20790 states have (on average 1.0213564213564215) internal successors, (21234), 20790 states have internal predecessors, (21234), 0 states have call successors, (0), 0 states 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 05:07:34,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20791 states to 20791 states and 21234 transitions. [2024-11-28 05:07:34,779 INFO L78 Accepts]: Start accepts. Automaton has 20791 states and 21234 transitions. Word has length 1556 [2024-11-28 05:07:34,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:07:34,780 INFO L471 AbstractCegarLoop]: Abstraction has 20791 states and 21234 transitions. [2024-11-28 05:07:34,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states 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 05:07:34,780 INFO L276 IsEmpty]: Start isEmpty. Operand 20791 states and 21234 transitions. [2024-11-28 05:07:34,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1588 [2024-11-28 05:07:34,796 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:07:34,797 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, 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, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:34,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 05:07:34,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 05:07:34,997 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:07:34,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:34,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1620524572, now seen corresponding path program 1 times [2024-11-28 05:07:34,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:34,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556547263] [2024-11-28 05:07:34,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:34,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:37,950 INFO L134 CoverageAnalysis]: Checked inductivity of 4312 backedges. 2591 proven. 288 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2024-11-28 05:07:37,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:37,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556547263] [2024-11-28 05:07:37,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556547263] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:07:37,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460109607] [2024-11-28 05:07:37,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:37,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:07:37,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:37,955 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:07:37,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:07:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:38,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:07:38,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:40,438 INFO L134 CoverageAnalysis]: Checked inductivity of 4312 backedges. 2677 proven. 464 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2024-11-28 05:07:40,438 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:07:42,618 INFO L134 CoverageAnalysis]: Checked inductivity of 4312 backedges. 2677 proven. 464 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2024-11-28 05:07:42,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460109607] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:07:42,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:07:42,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2024-11-28 05:07:42,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633365597] [2024-11-28 05:07:42,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:07:42,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:07:42,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:42,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:07:42,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:07:42,621 INFO L87 Difference]: Start difference. First operand 20791 states and 21234 transitions. Second operand has 13 states, 13 states have (on average 148.53846153846155) internal successors, (1931), 13 states have internal predecessors, (1931), 0 states have call successors, (0), 0 states 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 05:07:54,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:07:54,353 INFO L93 Difference]: Finished difference Result 44006 states and 44919 transitions. [2024-11-28 05:07:54,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 05:07:54,354 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 148.53846153846155) internal successors, (1931), 13 states have internal predecessors, (1931), 0 states have call successors, (0), 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 1587 [2024-11-28 05:07:54,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:07:54,375 INFO L225 Difference]: With dead ends: 44006 [2024-11-28 05:07:54,375 INFO L226 Difference]: Without dead ends: 23487 [2024-11-28 05:07:54,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3202 GetRequests, 3176 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2024-11-28 05:07:54,384 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 2427 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 22128 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 22338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 22128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:07:54,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2427 Valid, 323 Invalid, 22338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 22128 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2024-11-28 05:07:54,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23487 states. [2024-11-28 05:07:54,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23487 to 21449. [2024-11-28 05:07:54,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21449 states, 21448 states have (on average 1.0194889966430436) internal successors, (21866), 21448 states have internal predecessors, (21866), 0 states have call successors, (0), 0 states 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 05:07:54,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21449 states to 21449 states and 21866 transitions. [2024-11-28 05:07:54,598 INFO L78 Accepts]: Start accepts. Automaton has 21449 states and 21866 transitions. Word has length 1587 [2024-11-28 05:07:54,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:07:54,599 INFO L471 AbstractCegarLoop]: Abstraction has 21449 states and 21866 transitions. [2024-11-28 05:07:54,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 148.53846153846155) internal successors, (1931), 13 states have internal predecessors, (1931), 0 states have call successors, (0), 0 states 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 05:07:54,599 INFO L276 IsEmpty]: Start isEmpty. Operand 21449 states and 21866 transitions. [2024-11-28 05:07:54,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2217 [2024-11-28 05:07:54,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:07:54,626 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, 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, 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:54,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 05:07:54,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-28 05:07:54,827 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:07:54,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:54,827 INFO L85 PathProgramCache]: Analyzing trace with hash 797601150, now seen corresponding path program 1 times [2024-11-28 05:07:54,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:54,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944435165] [2024-11-28 05:07:54,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:54,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:59,466 INFO L134 CoverageAnalysis]: Checked inductivity of 9200 backedges. 5863 proven. 889 refuted. 0 times theorem prover too weak. 2448 trivial. 0 not checked. [2024-11-28 05:07:59,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:59,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944435165] [2024-11-28 05:07:59,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944435165] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:07:59,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492220051] [2024-11-28 05:07:59,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:59,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:07:59,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:59,468 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:07:59,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 05:08:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:00,097 INFO L256 TraceCheckSpWp]: Trace formula consists of 2520 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:08:00,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:08:00,341 INFO L134 CoverageAnalysis]: Checked inductivity of 9200 backedges. 1980 proven. 0 refuted. 0 times theorem prover too weak. 7220 trivial. 0 not checked. [2024-11-28 05:08:00,341 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:08:00,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492220051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:00,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:08:00,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-28 05:08:00,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289368278] [2024-11-28 05:08:00,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:00,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:08:00,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:00,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:08:00,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:08:00,345 INFO L87 Difference]: Start difference. First operand 21449 states and 21866 transitions. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states 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 05:08:01,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:01,323 INFO L93 Difference]: Finished difference Result 42238 states and 43064 transitions. [2024-11-28 05:08:01,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:08:01,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 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 2216 [2024-11-28 05:08:01,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:01,337 INFO L225 Difference]: With dead ends: 42238 [2024-11-28 05:08:01,337 INFO L226 Difference]: Without dead ends: 21120 [2024-11-28 05:08:01,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2224 GetRequests, 2218 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:08:01,344 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 219 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:01,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 56 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:08:01,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21120 states. [2024-11-28 05:08:01,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21120 to 20791. [2024-11-28 05:08:01,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20791 states, 20790 states have (on average 1.0157287157287158) internal successors, (21117), 20790 states have internal predecessors, (21117), 0 states have call successors, (0), 0 states 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 05:08:01,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20791 states to 20791 states and 21117 transitions. [2024-11-28 05:08:01,498 INFO L78 Accepts]: Start accepts. Automaton has 20791 states and 21117 transitions. Word has length 2216 [2024-11-28 05:08:01,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:01,500 INFO L471 AbstractCegarLoop]: Abstraction has 20791 states and 21117 transitions. [2024-11-28 05:08:01,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states 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 05:08:01,500 INFO L276 IsEmpty]: Start isEmpty. Operand 20791 states and 21117 transitions. [2024-11-28 05:08:01,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2294 [2024-11-28 05:08:01,529 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:01,530 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, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:08:01,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 05:08:01,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-28 05:08:01,730 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:01,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:01,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1943730005, now seen corresponding path program 1 times [2024-11-28 05:08:01,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:01,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809097351] [2024-11-28 05:08:01,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:01,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:04,638 INFO L134 CoverageAnalysis]: Checked inductivity of 9514 backedges. 6081 proven. 0 refuted. 0 times theorem prover too weak. 3433 trivial. 0 not checked. [2024-11-28 05:08:04,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:04,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809097351] [2024-11-28 05:08:04,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809097351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:04,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:04,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:08:04,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166174328] [2024-11-28 05:08:04,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:04,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:08:04,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:04,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:08:04,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:08:04,642 INFO L87 Difference]: Start difference. First operand 20791 states and 21117 transitions. Second operand has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states 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 05:08:05,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:05,851 INFO L93 Difference]: Finished difference Result 41262 states and 41912 transitions. [2024-11-28 05:08:05,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:08:05,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 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 2293 [2024-11-28 05:08:05,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:05,865 INFO L225 Difference]: With dead ends: 41262 [2024-11-28 05:08:05,865 INFO L226 Difference]: Without dead ends: 20802 [2024-11-28 05:08:05,872 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 05:08:05,873 INFO L435 NwaCegarLoop]: 424 mSDtfsCounter, 217 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:05,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 438 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 05:08:05,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20802 states. [2024-11-28 05:08:06,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20802 to 20791. [2024-11-28 05:08:06,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20791 states, 20790 states have (on average 1.0153920153920153) internal successors, (21110), 20790 states have internal predecessors, (21110), 0 states have call successors, (0), 0 states 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 05:08:06,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20791 states to 20791 states and 21110 transitions. [2024-11-28 05:08:06,031 INFO L78 Accepts]: Start accepts. Automaton has 20791 states and 21110 transitions. Word has length 2293 [2024-11-28 05:08:06,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:06,031 INFO L471 AbstractCegarLoop]: Abstraction has 20791 states and 21110 transitions. [2024-11-28 05:08:06,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states 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 05:08:06,032 INFO L276 IsEmpty]: Start isEmpty. Operand 20791 states and 21110 transitions. [2024-11-28 05:08:06,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2299 [2024-11-28 05:08:06,060 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:06,060 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, 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, 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, 8, 8, 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, 5, 5, 5, 5, 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, 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] [2024-11-28 05:08:06,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 05:08:06,060 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:06,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:06,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1480776839, now seen corresponding path program 1 times [2024-11-28 05:08:06,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:06,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594654061] [2024-11-28 05:08:06,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:06,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:08,467 INFO L134 CoverageAnalysis]: Checked inductivity of 10334 backedges. 6203 proven. 0 refuted. 0 times theorem prover too weak. 4131 trivial. 0 not checked. [2024-11-28 05:08:08,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:08,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594654061] [2024-11-28 05:08:08,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594654061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:08,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:08,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:08:08,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923235366] [2024-11-28 05:08:08,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:08,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:08:08,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:08,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:08:08,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:08:08,469 INFO L87 Difference]: Start difference. First operand 20791 states and 21110 transitions. Second operand has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states 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 05:08:09,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:09,351 INFO L93 Difference]: Finished difference Result 41580 states and 42221 transitions. [2024-11-28 05:08:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:08:09,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 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 2298 [2024-11-28 05:08:09,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:09,366 INFO L225 Difference]: With dead ends: 41580 [2024-11-28 05:08:09,366 INFO L226 Difference]: Without dead ends: 21120 [2024-11-28 05:08:09,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:08:09,374 INFO L435 NwaCegarLoop]: 428 mSDtfsCounter, 224 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:09,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 434 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:08:09,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21120 states. [2024-11-28 05:08:09,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21120 to 20462. [2024-11-28 05:08:09,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20462 states, 20461 states have (on average 1.0155906358438005) internal successors, (20780), 20461 states have internal predecessors, (20780), 0 states have call successors, (0), 0 states 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 05:08:09,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20462 states to 20462 states and 20780 transitions. [2024-11-28 05:08:09,526 INFO L78 Accepts]: Start accepts. Automaton has 20462 states and 20780 transitions. Word has length 2298 [2024-11-28 05:08:09,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:09,527 INFO L471 AbstractCegarLoop]: Abstraction has 20462 states and 20780 transitions. [2024-11-28 05:08:09,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states 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 05:08:09,527 INFO L276 IsEmpty]: Start isEmpty. Operand 20462 states and 20780 transitions. [2024-11-28 05:08:09,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2342 [2024-11-28 05:08:09,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:09,555 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, 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, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:08:09,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 05:08:09,555 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:09,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:09,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1297484440, now seen corresponding path program 1 times [2024-11-28 05:08:09,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:09,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133758632] [2024-11-28 05:08:09,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:09,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:10,880 INFO L134 CoverageAnalysis]: Checked inductivity of 10364 backedges. 5625 proven. 0 refuted. 0 times theorem prover too weak. 4739 trivial. 0 not checked. [2024-11-28 05:08:10,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:10,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133758632] [2024-11-28 05:08:10,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133758632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:10,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:10,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:08:10,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704174114] [2024-11-28 05:08:10,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:10,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:08:10,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:10,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:08:10,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:08:10,883 INFO L87 Difference]: Start difference. First operand 20462 states and 20780 transitions. Second operand has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 0 states 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 05:08:11,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:11,933 INFO L93 Difference]: Finished difference Result 40592 states and 41215 transitions. [2024-11-28 05:08:11,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:08:11,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 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 2341 [2024-11-28 05:08:11,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:11,952 INFO L225 Difference]: With dead ends: 40592 [2024-11-28 05:08:11,952 INFO L226 Difference]: Without dead ends: 20461 [2024-11-28 05:08:11,960 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 05:08:11,961 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 205 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:11,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 391 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:08:11,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20461 states. [2024-11-28 05:08:12,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20461 to 20132. [2024-11-28 05:08:12,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20132 states, 20131 states have (on average 1.0142566191446027) internal successors, (20418), 20131 states have internal predecessors, (20418), 0 states have call successors, (0), 0 states 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 05:08:12,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20132 states to 20132 states and 20418 transitions. [2024-11-28 05:08:12,138 INFO L78 Accepts]: Start accepts. Automaton has 20132 states and 20418 transitions. Word has length 2341 [2024-11-28 05:08:12,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:12,139 INFO L471 AbstractCegarLoop]: Abstraction has 20132 states and 20418 transitions. [2024-11-28 05:08:12,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 0 states 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 05:08:12,139 INFO L276 IsEmpty]: Start isEmpty. Operand 20132 states and 20418 transitions. [2024-11-28 05:08:12,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2357 [2024-11-28 05:08:12,168 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:12,169 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, 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, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:12,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 05:08:12,169 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:12,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:12,170 INFO L85 PathProgramCache]: Analyzing trace with hash 485113818, now seen corresponding path program 1 times [2024-11-28 05:08:12,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:12,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812323079] [2024-11-28 05:08:12,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:12,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:14,996 INFO L134 CoverageAnalysis]: Checked inductivity of 10002 backedges. 6422 proven. 0 refuted. 0 times theorem prover too weak. 3580 trivial. 0 not checked. [2024-11-28 05:08:14,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:14,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812323079] [2024-11-28 05:08:14,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812323079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:14,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:14,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:08:14,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655748928] [2024-11-28 05:08:14,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:14,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:08:14,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:14,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:08:14,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:08:14,999 INFO L87 Difference]: Start difference. First operand 20132 states and 20418 transitions. Second operand has 6 states, 6 states have (on average 140.66666666666666) internal successors, (844), 6 states have internal predecessors, (844), 0 states have call successors, (0), 0 states 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 05:08:16,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:16,633 INFO L93 Difference]: Finished difference Result 39934 states and 40504 transitions. [2024-11-28 05:08:16,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:08:16,634 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 140.66666666666666) internal successors, (844), 6 states have internal predecessors, (844), 0 states have call successors, (0), 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 2356 [2024-11-28 05:08:16,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:16,651 INFO L225 Difference]: With dead ends: 39934 [2024-11-28 05:08:16,651 INFO L226 Difference]: Without dead ends: 20133 [2024-11-28 05:08:16,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:08:16,662 INFO L435 NwaCegarLoop]: 425 mSDtfsCounter, 417 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 2318 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:16,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 565 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2318 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 05:08:16,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20133 states. [2024-11-28 05:08:16,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20133 to 20132. [2024-11-28 05:08:16,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20132 states, 20131 states have (on average 1.0141572698822712) internal successors, (20416), 20131 states have internal predecessors, (20416), 0 states have call successors, (0), 0 states 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 05:08:16,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20132 states to 20132 states and 20416 transitions. [2024-11-28 05:08:16,872 INFO L78 Accepts]: Start accepts. Automaton has 20132 states and 20416 transitions. Word has length 2356 [2024-11-28 05:08:16,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:16,873 INFO L471 AbstractCegarLoop]: Abstraction has 20132 states and 20416 transitions. [2024-11-28 05:08:16,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.66666666666666) internal successors, (844), 6 states have internal predecessors, (844), 0 states have call successors, (0), 0 states 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 05:08:16,874 INFO L276 IsEmpty]: Start isEmpty. Operand 20132 states and 20416 transitions. [2024-11-28 05:08:16,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2394 [2024-11-28 05:08:16,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:16,921 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 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, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 05:08:16,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 05:08:16,921 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:16,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:16,922 INFO L85 PathProgramCache]: Analyzing trace with hash -954482011, now seen corresponding path program 1 times [2024-11-28 05:08:16,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:16,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609893196] [2024-11-28 05:08:16,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:16,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:21,009 INFO L134 CoverageAnalysis]: Checked inductivity of 11447 backedges. 8326 proven. 486 refuted. 0 times theorem prover too weak. 2635 trivial. 0 not checked. [2024-11-28 05:08:21,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:21,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609893196] [2024-11-28 05:08:21,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609893196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:08:21,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062875603] [2024-11-28 05:08:21,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:21,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:08:21,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:08:21,011 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:08:21,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 05:08:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:21,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 2742 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:08:21,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:08:22,321 INFO L134 CoverageAnalysis]: Checked inductivity of 11447 backedges. 6917 proven. 0 refuted. 0 times theorem prover too weak. 4530 trivial. 0 not checked. [2024-11-28 05:08:22,321 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:08:22,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062875603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:22,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:08:22,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-28 05:08:22,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000311285] [2024-11-28 05:08:22,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:22,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:08:22,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:22,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:08:22,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:08:22,325 INFO L87 Difference]: Start difference. First operand 20132 states and 20416 transitions. Second operand has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 0 states 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 05:08:23,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:23,306 INFO L93 Difference]: Finished difference Result 40262 states and 40830 transitions. [2024-11-28 05:08:23,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:08:23,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 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 2393 [2024-11-28 05:08:23,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:23,321 INFO L225 Difference]: With dead ends: 40262 [2024-11-28 05:08:23,321 INFO L226 Difference]: Without dead ends: 20461 [2024-11-28 05:08:23,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2400 GetRequests, 2394 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:08:23,329 INFO L435 NwaCegarLoop]: 419 mSDtfsCounter, 123 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:23,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 424 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:08:23,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20461 states. [2024-11-28 05:08:23,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20461 to 20132. [2024-11-28 05:08:23,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20132 states, 20131 states have (on average 1.0139585713576076) internal successors, (20412), 20131 states have internal predecessors, (20412), 0 states have call successors, (0), 0 states 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 05:08:23,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20132 states to 20132 states and 20412 transitions. [2024-11-28 05:08:23,477 INFO L78 Accepts]: Start accepts. Automaton has 20132 states and 20412 transitions. Word has length 2393 [2024-11-28 05:08:23,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:23,478 INFO L471 AbstractCegarLoop]: Abstraction has 20132 states and 20412 transitions. [2024-11-28 05:08:23,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 0 states 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 05:08:23,478 INFO L276 IsEmpty]: Start isEmpty. Operand 20132 states and 20412 transitions. [2024-11-28 05:08:23,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2470 [2024-11-28 05:08:23,508 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:23,509 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 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, 9, 9, 8, 8, 8, 8, 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, 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, 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] [2024-11-28 05:08:23,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 05:08:23,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 05:08:23,709 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:23,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:23,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1019327256, now seen corresponding path program 1 times [2024-11-28 05:08:23,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:23,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371431463] [2024-11-28 05:08:23,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:23,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:24,992 INFO L134 CoverageAnalysis]: Checked inductivity of 13074 backedges. 4367 proven. 0 refuted. 0 times theorem prover too weak. 8707 trivial. 0 not checked. [2024-11-28 05:08:24,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:24,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371431463] [2024-11-28 05:08:24,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371431463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:24,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:24,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:08:24,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171887737] [2024-11-28 05:08:24,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:24,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:08:24,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:24,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:08:24,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:08:24,995 INFO L87 Difference]: Start difference. First operand 20132 states and 20412 transitions. Second operand has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 0 states 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 05:08:25,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:25,903 INFO L93 Difference]: Finished difference Result 41578 states and 42162 transitions. [2024-11-28 05:08:25,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:08:25,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 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 2469 [2024-11-28 05:08:25,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:25,916 INFO L225 Difference]: With dead ends: 41578 [2024-11-28 05:08:25,916 INFO L226 Difference]: Without dead ends: 21777 [2024-11-28 05:08:25,925 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 05:08:25,925 INFO L435 NwaCegarLoop]: 413 mSDtfsCounter, 198 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:25,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 419 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:08:25,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21777 states. [2024-11-28 05:08:26,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21777 to 19803. [2024-11-28 05:08:26,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19803 states, 19802 states have (on average 1.014089485910514) internal successors, (20081), 19802 states have internal predecessors, (20081), 0 states have call successors, (0), 0 states 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 05:08:26,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19803 states to 19803 states and 20081 transitions. [2024-11-28 05:08:26,078 INFO L78 Accepts]: Start accepts. Automaton has 19803 states and 20081 transitions. Word has length 2469 [2024-11-28 05:08:26,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:26,079 INFO L471 AbstractCegarLoop]: Abstraction has 19803 states and 20081 transitions. [2024-11-28 05:08:26,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 0 states 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 05:08:26,079 INFO L276 IsEmpty]: Start isEmpty. Operand 19803 states and 20081 transitions. [2024-11-28 05:08:26,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2610 [2024-11-28 05:08:26,112 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:26,112 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 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, 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, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2024-11-28 05:08:26,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 05:08:26,113 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:26,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:26,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1341586274, now seen corresponding path program 1 times [2024-11-28 05:08:26,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:26,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190627731] [2024-11-28 05:08:26,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:26,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:29,584 INFO L134 CoverageAnalysis]: Checked inductivity of 13418 backedges. 4318 proven. 134 refuted. 0 times theorem prover too weak. 8966 trivial. 0 not checked. [2024-11-28 05:08:29,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:29,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190627731] [2024-11-28 05:08:29,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190627731] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:08:29,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969377375] [2024-11-28 05:08:29,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:29,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:08:29,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:08:29,586 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:08:29,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 05:08:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:30,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 2951 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:08:30,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:08:30,762 INFO L134 CoverageAnalysis]: Checked inductivity of 13418 backedges. 3030 proven. 0 refuted. 0 times theorem prover too weak. 10388 trivial. 0 not checked. [2024-11-28 05:08:30,763 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:08:30,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969377375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:30,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:08:30,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2024-11-28 05:08:30,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044565178] [2024-11-28 05:08:30,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:30,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:08:30,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:30,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:08:30,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:08:30,766 INFO L87 Difference]: Start difference. First operand 19803 states and 20081 transitions. Second operand has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states 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 05:08:32,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:32,254 INFO L93 Difference]: Finished difference Result 43282 states and 43895 transitions. [2024-11-28 05:08:32,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:08:32,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 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 2609 [2024-11-28 05:08:32,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:32,269 INFO L225 Difference]: With dead ends: 43282 [2024-11-28 05:08:32,269 INFO L226 Difference]: Without dead ends: 23751 [2024-11-28 05:08:32,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2613 GetRequests, 2609 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:08:32,277 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 363 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1512 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:32,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 24 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1512 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 05:08:32,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23751 states. [2024-11-28 05:08:32,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23751 to 19803. [2024-11-28 05:08:32,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19803 states, 19802 states have (on average 1.013988486011514) internal successors, (20079), 19802 states have internal predecessors, (20079), 0 states have call successors, (0), 0 states 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 05:08:32,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19803 states to 19803 states and 20079 transitions. [2024-11-28 05:08:32,444 INFO L78 Accepts]: Start accepts. Automaton has 19803 states and 20079 transitions. Word has length 2609 [2024-11-28 05:08:32,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:32,446 INFO L471 AbstractCegarLoop]: Abstraction has 19803 states and 20079 transitions. [2024-11-28 05:08:32,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states 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 05:08:32,446 INFO L276 IsEmpty]: Start isEmpty. Operand 19803 states and 20079 transitions. [2024-11-28 05:08:32,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2805 [2024-11-28 05:08:32,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:32,483 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 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, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:08:32,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 05:08:32,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:08:32,684 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:32,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:32,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1482410570, now seen corresponding path program 1 times [2024-11-28 05:08:32,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:32,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405923641] [2024-11-28 05:08:32,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:32,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:41,249 INFO L134 CoverageAnalysis]: Checked inductivity of 15082 backedges. 6252 proven. 5961 refuted. 0 times theorem prover too weak. 2869 trivial. 0 not checked. [2024-11-28 05:08:41,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:41,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405923641] [2024-11-28 05:08:41,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405923641] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:08:41,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888232520] [2024-11-28 05:08:41,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:41,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:08:41,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:08:41,251 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:08:41,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 05:08:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:42,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 3171 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:08:42,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:08:44,739 INFO L134 CoverageAnalysis]: Checked inductivity of 15082 backedges. 10567 proven. 60 refuted. 0 times theorem prover too weak. 4455 trivial. 0 not checked. [2024-11-28 05:08:44,740 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:08:47,949 INFO L134 CoverageAnalysis]: Checked inductivity of 15082 backedges. 10567 proven. 60 refuted. 0 times theorem prover too weak. 4455 trivial. 0 not checked. [2024-11-28 05:08:47,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888232520] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:08:47,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:08:47,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 12 [2024-11-28 05:08:47,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943987761] [2024-11-28 05:08:47,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:08:47,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 05:08:47,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:47,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 05:08:47,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:08:47,957 INFO L87 Difference]: Start difference. First operand 19803 states and 20079 transitions. Second operand has 12 states, 12 states have (on average 169.5) internal successors, (2034), 12 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states 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 05:08:54,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:54,345 INFO L93 Difference]: Finished difference Result 40591 states and 41151 transitions. [2024-11-28 05:08:54,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:08:54,345 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 169.5) internal successors, (2034), 12 states have internal predecessors, (2034), 0 states have call successors, (0), 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 2804 [2024-11-28 05:08:54,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:54,359 INFO L225 Difference]: With dead ends: 40591 [2024-11-28 05:08:54,359 INFO L226 Difference]: Without dead ends: 21119 [2024-11-28 05:08:54,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5624 GetRequests, 5609 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-28 05:08:54,367 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 1422 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 12246 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 12274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 12246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:54,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 162 Invalid, 12274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 12246 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-28 05:08:54,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21119 states. [2024-11-28 05:08:54,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21119 to 19803. [2024-11-28 05:08:54,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19803 states, 19802 states have (on average 1.0137864862135137) internal successors, (20075), 19802 states have internal predecessors, (20075), 0 states have call successors, (0), 0 states 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 05:08:54,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19803 states to 19803 states and 20075 transitions. [2024-11-28 05:08:54,562 INFO L78 Accepts]: Start accepts. Automaton has 19803 states and 20075 transitions. Word has length 2804 [2024-11-28 05:08:54,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:54,563 INFO L471 AbstractCegarLoop]: Abstraction has 19803 states and 20075 transitions. [2024-11-28 05:08:54,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 169.5) internal successors, (2034), 12 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states 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 05:08:54,563 INFO L276 IsEmpty]: Start isEmpty. Operand 19803 states and 20075 transitions. [2024-11-28 05:08:54,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2826 [2024-11-28 05:08:54,600 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:54,601 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 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, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2024-11-28 05:08:54,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 05:08:54,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:08:54,801 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:54,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:54,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1996546871, now seen corresponding path program 1 times [2024-11-28 05:08:54,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:54,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759129802] [2024-11-28 05:08:54,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:54,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:09:00,391 INFO L134 CoverageAnalysis]: Checked inductivity of 16707 backedges. 9750 proven. 2272 refuted. 0 times theorem prover too weak. 4685 trivial. 0 not checked. [2024-11-28 05:09:00,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:09:00,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759129802] [2024-11-28 05:09:00,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759129802] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:09:00,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980801379] [2024-11-28 05:09:00,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:09:00,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:09:00,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:09:00,393 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:09:00,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 05:09:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:09:01,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 3209 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:09:01,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:09:01,423 INFO L134 CoverageAnalysis]: Checked inductivity of 16707 backedges. 6088 proven. 0 refuted. 0 times theorem prover too weak. 10619 trivial. 0 not checked. [2024-11-28 05:09:01,423 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:09:01,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980801379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:09:01,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:09:01,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-28 05:09:01,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484169658] [2024-11-28 05:09:01,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:09:01,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:09:01,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:09:01,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:09:01,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:09:01,425 INFO L87 Difference]: Start difference. First operand 19803 states and 20075 transitions. Second operand has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states 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 05:09:02,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:09:02,266 INFO L93 Difference]: Finished difference Result 38227 states and 38745 transitions. [2024-11-28 05:09:02,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:09:02,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 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 2825 [2024-11-28 05:09:02,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:09:02,269 INFO L225 Difference]: With dead ends: 38227 [2024-11-28 05:09:02,269 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 05:09:02,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2831 GetRequests, 2825 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:09:02,277 INFO L435 NwaCegarLoop]: 407 mSDtfsCounter, 119 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:09:02,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 412 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 05:09:02,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 05:09:02,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 05:09:02,278 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 05:09:02,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 05:09:02,279 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2825 [2024-11-28 05:09:02,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:09:02,279 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 05:09:02,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states 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 05:09:02,279 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 05:09:02,279 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 05:09:02,282 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 05:09:02,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 05:09:02,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:09:02,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:09:02,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 05:09:10,396 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 05:09:10,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:09:10 BoogieIcfgContainer [2024-11-28 05:09:10,444 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 05:09:10,445 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:09:10,445 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:09:10,445 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:09:10,446 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:05:50" (3/4) ... [2024-11-28 05:09:10,449 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 05:09:10,493 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-28 05:09:10,494 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 05:09:10,496 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 05:09:10,498 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 05:09:10,749 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 05:09:10,750 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 05:09:10,751 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:09:10,751 INFO L158 Benchmark]: Toolchain (without parser) took 204565.08ms. Allocated memory was 117.4MB in the beginning and 2.8GB in the end (delta: 2.7GB). Free memory was 89.8MB in the beginning and 999.6MB in the end (delta: -909.8MB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-11-28 05:09:10,752 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:09:10,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 883.45ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 80.7MB in the end (delta: 9.0MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2024-11-28 05:09:10,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 192.72ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 57.3MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 05:09:10,753 INFO L158 Benchmark]: Boogie Preprocessor took 284.10ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 56.7MB in the beginning and 289.2MB in the end (delta: -232.5MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2024-11-28 05:09:10,754 INFO L158 Benchmark]: RCFGBuilder took 2947.47ms. Allocated memory is still 352.3MB. Free memory was 289.2MB in the beginning and 215.1MB in the end (delta: 74.1MB). Peak memory consumption was 176.2MB. Max. memory is 16.1GB. [2024-11-28 05:09:10,754 INFO L158 Benchmark]: TraceAbstraction took 199938.91ms. Allocated memory was 352.3MB in the beginning and 2.8GB in the end (delta: 2.4GB). Free memory was 215.1MB in the beginning and 1.0GB in the end (delta: -813.9MB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-11-28 05:09:10,754 INFO L158 Benchmark]: Witness Printer took 305.56ms. Allocated memory is still 2.8GB. Free memory was 1.0GB in the beginning and 999.6MB in the end (delta: 29.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-28 05:09:10,755 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 883.45ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 80.7MB in the end (delta: 9.0MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 192.72ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 57.3MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 284.10ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 56.7MB in the beginning and 289.2MB in the end (delta: -232.5MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * RCFGBuilder took 2947.47ms. Allocated memory is still 352.3MB. Free memory was 289.2MB in the beginning and 215.1MB in the end (delta: 74.1MB). Peak memory consumption was 176.2MB. Max. memory is 16.1GB. * TraceAbstraction took 199938.91ms. Allocated memory was 352.3MB in the beginning and 2.8GB in the end (delta: 2.4GB). Free memory was 215.1MB in the beginning and 1.0GB in the end (delta: -813.9MB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Witness Printer took 305.56ms. Allocated memory is still 2.8GB. Free memory was 1.0GB in the beginning and 999.6MB in the end (delta: 29.4MB). Peak memory consumption was 33.6MB. 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: 200]: 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: 191.9s, OverallIterations: 33, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.6s, AutomataDifference: 78.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17829 SdHoareTripleChecker+Valid, 72.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17829 mSDsluCounter, 8823 SdHoareTripleChecker+Invalid, 60.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1092 mSDsCounter, 6017 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89395 IncrementalHoareTripleChecker+Invalid, 95412 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6017 mSolverCounterUnsat, 7731 mSDtfsCounter, 89395 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26738 GetRequests, 26580 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25397occurred in iteration=16, InterpolantAutomatonStates: 180, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.8s AutomataMinimizationTime, 33 MinimizatonAttempts, 31102 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.6s SsaConstructionTime, 5.5s SatisfiabilityAnalysisTime, 93.7s InterpolantComputationTime, 61276 NumberOfCodeBlocks, 61276 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 69327 ConstructedInterpolants, 0 QuantifiedInterpolants, 217138 SizeOfPredicates, 24 NumberOfNonLiveVariables, 21125 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 50 InterpolantComputations, 27 PerfectInterpolantSequences, 244192/258444 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: (((((((((((((((((((((((((((((((((((((((((((((((((a12 == 9) && (a16 == 9)) && (a15 == 4)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a18 <= 134)) || (((((0 <= ((long long) 87 + a18)) && (a16 == 8)) && (a15 == 4)) && (7 == a12)) && (a18 <= 134))) || ((((((a16 == 9) && (a15 == 4)) && (a12 == 8)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a18 <= 134))) || ((((((a16 == 8) && (a15 == 4)) && (a12 == 8)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (((long long) a18 + 192034) <= 0))) || (((((0 <= ((long long) 87 + a18)) && (a16 == 8)) && (a15 == 4)) && (a12 == 8)) && (a18 <= 134))) || (((((((0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985)) && (10 <= a16)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a12 <= 6)) && (a16 <= 11)) && (a15 == 3)) && (a18 <= 134))) || (((((((a15 == 4) && (5 != a12)) && (10 <= a16)) && (a18 <= 594508)) && (135 <= a18)) && (a12 <= 6)) && (a16 <= 11))) || (((((((a15 == 4) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && (10 <= a16)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a12 <= 6)) && (a16 <= 11)) && (a18 <= 134))) || (((((0 <= ((long long) 87 + a18)) && (a12 == 9)) && (a16 == 8)) && (a15 == 4)) && (a18 <= 134))) || (((((a18 <= 597816) && (a16 == 9)) && (a15 == 4)) && (7 == a12)) && (594219 <= a18))) || ((((((a12 == 9) && (a16 == 11)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && (((long long) a18 + 156) <= 0)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a15 == 3))) || ((((((a12 == 9) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && (((long long) a18 + 156) <= 0)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a16 == 12)) && (a15 == 3))) || ((((((a16 == 9) && (a12 == 8)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a15 == 3)) && (a18 <= 600002))) || ((((((a16 == 11) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a15 == 3)) && (7 == a12)) && (a18 <= 134))) || ((((((a16 == 8) && (a15 == 4)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (5 == a12)) && (a18 <= 134))) || (((((0 <= ((long long) 87 + a18)) && (a12 == 9)) && (a16 == 11)) && (a15 == 3)) && (a18 <= 134))) || (((((a16 == 10) && (598710 <= a18)) && (a15 == 4)) && (5 == a12)) && (a18 <= 600002))) || (((((a18 <= 69306) && (a12 == 9)) && (a16 == 8)) && (a15 == 4)) && (69094 <= a18))) || ((((((a12 == 9) && (a16 == 8)) && (a15 == 4)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (((long long) 87 + a18) <= 0))) || (((((a12 == 9) && (a16 == 12)) && (135 <= a18)) && (a15 == 3)) && (a18 <= 600002))) || (((((0 <= ((long long) 87 + a18)) && (a16 == 9)) && (a12 <= 7)) && (a15 == 3)) && (a18 <= 600002))) || ((((((a12 == 8) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a16 == 12)) && (a15 == 3)) && (a18 <= 134))) || (((((a18 <= 594508) && (a16 == 12)) && (a12 <= 6)) && (a15 == 3)) && (594219 <= a18))) || ((((((a16 == 9) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (((long long) 87 + a18) <= 0)) && (a12 <= 7)) && (a15 == 3))) || ((((((a16 == 9) && (a15 == 4)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a12 <= 6)) && (a18 <= 134))) || (((((a16 == 12) && (5 == a12)) && (0 < ((long long) a18 + 156))) && (a15 == 3)) && (a18 <= 134))) || ((10 <= a16) && ((((((((0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985)) && (5 != a12)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a12 <= 6)) && (a16 <= 11)) && (a15 == 3)) && (a18 <= 600002)) || ((((((0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (((long long) 87 + a18) <= 0)) && (a12 <= 7)) && (a16 <= 11)) && (a15 == 3))))) || ((((((a16 == 8) && (a15 == 4)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (((long long) 300160 + a18) <= 0)) && (a12 <= 6))) || (((((a16 == 8) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && (((long long) a18 + 292384) <= 0)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a15 == 3))) || (((((a16 == 8) && (a15 == 4)) && (a18 <= 594508)) && (135 <= a18)) && (a12 <= 6))) || ((a16 == 9) && (((((0 <= ((long long) 87 + a18)) && (a12 == 9)) && (a15 == 3)) && (a18 <= 600002)) || (((((a12 == 9) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && (((long long) a18 + 292384) <= 0)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a15 == 3))))) || (((((0 <= ((long long) 87 + a18)) && (a16 == 8)) && (a15 == 4)) && (a12 <= 6)) && (a18 <= 134))) || (((((0 <= ((long long) 87 + a18)) && (a16 == 9)) && (a15 == 4)) && (7 == a12)) && (a18 <= 134))) || ((((((a16 == 8) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (5 == a12)) && (a15 == 3)) && (a18 <= 134))) || (((((a16 == 12) && (135 <= a18)) && (5 == a12)) && (a15 == 3)) && (a18 <= 600002))) || ((((((a16 == 9) && (a15 == 4)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && (((long long) a18 + 292384) <= 0)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (7 == a12))) || (((((0 <= ((long long) 87 + a18)) && (a16 == 12)) && (a12 <= 6)) && (a15 == 3)) && (a18 <= 134))) || (((((0 <= ((long long) 87 + a18)) && (a12 == 9)) && (a16 == 12)) && (a15 == 3)) && (a18 <= 134))) || (((((0 <= ((long long) 87 + a18)) && (a18 <= 597816)) && (a12 == 8)) && (a16 == 12)) && (a15 == 3))) || ((((((a16 == 8) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (((long long) 87 + a18) <= 0)) && (a12 <= 7)) && (a15 == 3))) || (((((((a12 == 8) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && (10 <= a16)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a16 <= 11)) && (a15 == 3)) && (a18 <= 600002))) || ((((((0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a16 == 12)) && (a15 == 3)) && (7 == a12)) && (a18 <= 134))) || (((((0 <= ((long long) 87 + a18)) && (a16 == 8)) && (5 != a12)) && (a15 == 3)) && (a18 <= 600002))) || ((((((a16 == 8) && (a15 == 4)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && (((long long) a18 + 156) <= 0)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (7 == a12))) RESULT: Ultimate proved your program to be correct! [2024-11-28 05:09:10,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b483ba44-d0bd-422d-ac8f-ba743b285b2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE