./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label29.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_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/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_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label29.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/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_9a0a9f96-1a87-4178-805c-e9b6b77b7806/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 85e05dcbef11985a579e446d2c280cce8be43c2367f7e9a1fa9ca1daed3123bb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:19:46,507 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:19:46,628 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:19:46,639 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:19:46,640 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:19:46,679 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:19:46,681 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:19:46,682 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:19:46,682 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:19:46,683 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:19:46,684 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:19:46,684 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:19:46,685 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:19:46,685 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:19:46,686 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:19:46,686 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:19:46,686 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:19:46,687 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:19:46,687 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:19:46,687 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:19:46,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:19:46,688 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:19:46,688 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:19:46,688 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:19:46,688 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:19:46,688 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:19:46,688 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:19:46,689 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:19:46,689 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:19:46,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:19:46,689 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:19:46,689 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:19:46,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:19:46,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:19:46,690 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:19:46,690 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:19:46,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:19:46,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:19:46,690 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:19:46,690 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:19:46,690 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:19:46,690 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:19:46,690 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:19:46,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:19:46,691 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:19:46,691 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:19:46,691 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:19:46,691 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:19:46,691 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_9a0a9f96-1a87-4178-805c-e9b6b77b7806/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 -> 85e05dcbef11985a579e446d2c280cce8be43c2367f7e9a1fa9ca1daed3123bb [2024-11-28 05:19:47,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:19:47,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:19:47,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:19:47,102 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:19:47,103 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:19:47,104 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/eca-rers2012/Problem01_label29.c [2024-11-28 05:19:50,799 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/data/4d3c7f721/0362bbb5ce17479999956ad1520c4488/FLAG1cc0d278d [2024-11-28 05:19:51,209 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:19:51,217 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/sv-benchmarks/c/eca-rers2012/Problem01_label29.c [2024-11-28 05:19:51,246 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/data/4d3c7f721/0362bbb5ce17479999956ad1520c4488/FLAG1cc0d278d [2024-11-28 05:19:51,370 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/data/4d3c7f721/0362bbb5ce17479999956ad1520c4488 [2024-11-28 05:19:51,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:19:51,374 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:19:51,376 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:19:51,376 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:19:51,380 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:19:51,381 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:19:51" (1/1) ... [2024-11-28 05:19:51,382 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc52b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:51, skipping insertion in model container [2024-11-28 05:19:51,382 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:19:51" (1/1) ... [2024-11-28 05:19:51,433 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:19:51,900 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_9a0a9f96-1a87-4178-805c-e9b6b77b7806/sv-benchmarks/c/eca-rers2012/Problem01_label29.c[18109,18122] [2024-11-28 05:19:51,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:19:51,981 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:19:52,122 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_9a0a9f96-1a87-4178-805c-e9b6b77b7806/sv-benchmarks/c/eca-rers2012/Problem01_label29.c[18109,18122] [2024-11-28 05:19:52,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:19:52,177 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:19:52,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:52 WrapperNode [2024-11-28 05:19:52,178 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:19:52,179 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:19:52,180 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:19:52,180 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:19:52,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:52" (1/1) ... [2024-11-28 05:19:52,214 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:52" (1/1) ... [2024-11-28 05:19:52,275 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2024-11-28 05:19:52,275 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:19:52,276 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:19:52,276 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:19:52,276 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:19:52,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:52" (1/1) ... [2024-11-28 05:19:52,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:52" (1/1) ... [2024-11-28 05:19:52,293 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:52" (1/1) ... [2024-11-28 05:19:52,315 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 05:19:52,316 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:52" (1/1) ... [2024-11-28 05:19:52,316 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:52" (1/1) ... [2024-11-28 05:19:52,335 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:52" (1/1) ... [2024-11-28 05:19:52,337 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:52" (1/1) ... [2024-11-28 05:19:52,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:52" (1/1) ... [2024-11-28 05:19:52,350 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:52" (1/1) ... [2024-11-28 05:19:52,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:52" (1/1) ... [2024-11-28 05:19:52,359 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:19:52,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:19:52,361 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:19:52,361 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:19:52,362 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:52" (1/1) ... [2024-11-28 05:19:52,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:19:52,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:19:52,406 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:19:52,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:19:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:19:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:19:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:19:52,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:19:52,553 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:19:52,557 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:19:54,256 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live. [2024-11-28 05:19:54,256 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:19:54,277 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:19:54,282 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:19:54,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:19:54 BoogieIcfgContainer [2024-11-28 05:19:54,283 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:19:54,285 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:19:54,285 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:19:54,293 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:19:54,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:19:51" (1/3) ... [2024-11-28 05:19:54,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1279400f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:19:54, skipping insertion in model container [2024-11-28 05:19:54,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:52" (2/3) ... [2024-11-28 05:19:54,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1279400f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:19:54, skipping insertion in model container [2024-11-28 05:19:54,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:19:54" (3/3) ... [2024-11-28 05:19:54,296 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem01_label29.c [2024-11-28 05:19:54,315 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:19:54,318 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem01_label29.c that has 1 procedures, 198 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 05:19:54,419 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:19:54,441 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;@6def246, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:19:54,442 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:19:54,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states 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 05:19:54,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 05:19:54,459 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:19:54,460 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:19:54,461 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:19:54,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:54,470 INFO L85 PathProgramCache]: Analyzing trace with hash 620620582, now seen corresponding path program 1 times [2024-11-28 05:19:54,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:54,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993074662] [2024-11-28 05:19:54,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:54,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:55,920 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 05:19:55,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:55,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993074662] [2024-11-28 05:19:55,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993074662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:19:55,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:19:55,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:19:55,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54045319] [2024-11-28 05:19:55,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:19:55,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:19:55,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:55,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:19:55,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:19:55,970 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:19:57,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:19:57,852 INFO L93 Difference]: Finished difference Result 662 states and 1178 transitions. [2024-11-28 05:19:57,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:19:57,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-28 05:19:57,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:19:57,879 INFO L225 Difference]: With dead ends: 662 [2024-11-28 05:19:57,879 INFO L226 Difference]: Without dead ends: 397 [2024-11-28 05:19:57,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:19:57,893 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 353 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:19:57,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 81 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 05:19:57,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-28 05:19:57,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2024-11-28 05:19:57,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 396 states have (on average 1.3055555555555556) internal successors, (517), 396 states have internal predecessors, (517), 0 states have call successors, (0), 0 states 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 05:19:57,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 517 transitions. [2024-11-28 05:19:57,994 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 517 transitions. Word has length 101 [2024-11-28 05:19:57,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:19:57,995 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 517 transitions. [2024-11-28 05:19:57,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:19:57,996 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 517 transitions. [2024-11-28 05:19:57,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 05:19:57,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:19:58,000 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 05:19:58,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:19:58,000 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:19:58,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:58,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1432944013, now seen corresponding path program 1 times [2024-11-28 05:19:58,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:58,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201648485] [2024-11-28 05:19:58,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:58,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:58,715 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:19:58,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:58,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201648485] [2024-11-28 05:19:58,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201648485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:19:58,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:19:58,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:19:58,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882152404] [2024-11-28 05:19:58,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:19:58,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:19:58,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:58,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:19:58,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:19:58,724 INFO L87 Difference]: Start difference. First operand 397 states and 517 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states 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 05:19:59,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:19:59,862 INFO L93 Difference]: Finished difference Result 887 states and 1235 transitions. [2024-11-28 05:19:59,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:19:59,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2024-11-28 05:19:59,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:19:59,866 INFO L225 Difference]: With dead ends: 887 [2024-11-28 05:19:59,866 INFO L226 Difference]: Without dead ends: 528 [2024-11-28 05:19:59,867 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 05:19:59,868 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 128 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:19:59,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 81 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 05:19:59,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-28 05:19:59,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 397. [2024-11-28 05:19:59,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 396 states have (on average 1.196969696969697) internal successors, (474), 396 states have internal predecessors, (474), 0 states have call successors, (0), 0 states 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 05:19:59,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 474 transitions. [2024-11-28 05:19:59,892 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 474 transitions. Word has length 108 [2024-11-28 05:19:59,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:19:59,892 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 474 transitions. [2024-11-28 05:19:59,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states 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 05:19:59,893 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 474 transitions. [2024-11-28 05:19:59,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-28 05:19:59,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:19:59,897 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:19:59,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:19:59,897 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:19:59,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:59,898 INFO L85 PathProgramCache]: Analyzing trace with hash 481675509, now seen corresponding path program 1 times [2024-11-28 05:19:59,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:59,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571243661] [2024-11-28 05:19:59,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:59,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:00,220 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:20:00,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:00,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571243661] [2024-11-28 05:20:00,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571243661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:00,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:20:00,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:20:00,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555469438] [2024-11-28 05:20:00,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:00,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:20:00,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:00,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:20:00,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:20:00,222 INFO L87 Difference]: Start difference. First operand 397 states and 474 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states 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 05:20:00,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:20:00,825 INFO L93 Difference]: Finished difference Result 923 states and 1105 transitions. [2024-11-28 05:20:00,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:20:00,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 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 116 [2024-11-28 05:20:00,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:20:00,830 INFO L225 Difference]: With dead ends: 923 [2024-11-28 05:20:00,830 INFO L226 Difference]: Without dead ends: 528 [2024-11-28 05:20:00,834 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 05:20:00,835 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 125 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:20:00,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 46 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 05:20:00,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-28 05:20:00,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2024-11-28 05:20:00,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.1707779886148009) internal successors, (617), 527 states have internal predecessors, (617), 0 states have call successors, (0), 0 states 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 05:20:00,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 617 transitions. [2024-11-28 05:20:00,880 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 617 transitions. Word has length 116 [2024-11-28 05:20:00,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:20:00,884 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 617 transitions. [2024-11-28 05:20:00,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states 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 05:20:00,884 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 617 transitions. [2024-11-28 05:20:00,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 05:20:00,892 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:20:00,893 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:20:00,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:20:00,893 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:20:00,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:00,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1287020845, now seen corresponding path program 1 times [2024-11-28 05:20:00,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:00,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838631735] [2024-11-28 05:20:00,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:00,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:01,105 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 05:20:01,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:01,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838631735] [2024-11-28 05:20:01,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838631735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:01,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:20:01,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:20:01,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76283011] [2024-11-28 05:20:01,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:01,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:20:01,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:01,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:20:01,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:20:01,108 INFO L87 Difference]: Start difference. First operand 528 states and 617 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states 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 05:20:01,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:20:01,732 INFO L93 Difference]: Finished difference Result 1578 states and 1846 transitions. [2024-11-28 05:20:01,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:20:01,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 125 [2024-11-28 05:20:01,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:20:01,740 INFO L225 Difference]: With dead ends: 1578 [2024-11-28 05:20:01,740 INFO L226 Difference]: Without dead ends: 1052 [2024-11-28 05:20:01,741 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 05:20:01,743 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 132 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:20:01,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 28 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 05:20:01,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2024-11-28 05:20:01,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 921. [2024-11-28 05:20:01,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.1891304347826086) internal successors, (1094), 920 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states 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 05:20:01,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1094 transitions. [2024-11-28 05:20:01,791 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1094 transitions. Word has length 125 [2024-11-28 05:20:01,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:20:01,791 INFO L471 AbstractCegarLoop]: Abstraction has 921 states and 1094 transitions. [2024-11-28 05:20:01,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states 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 05:20:01,792 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1094 transitions. [2024-11-28 05:20:01,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 05:20:01,799 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:20:01,799 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-11-28 05:20:01,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:20:01,800 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:20:01,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:01,802 INFO L85 PathProgramCache]: Analyzing trace with hash 127743748, now seen corresponding path program 1 times [2024-11-28 05:20:01,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:01,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032623869] [2024-11-28 05:20:01,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:01,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:02,076 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:20:02,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:02,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032623869] [2024-11-28 05:20:02,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032623869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:02,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:20:02,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:20:02,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599843990] [2024-11-28 05:20:02,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:02,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:20:02,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:02,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:20:02,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:20:02,079 INFO L87 Difference]: Start difference. First operand 921 states and 1094 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states 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 05:20:02,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:20:02,850 INFO L93 Difference]: Finished difference Result 2364 states and 2857 transitions. [2024-11-28 05:20:02,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:20:02,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 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 131 [2024-11-28 05:20:02,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:20:02,856 INFO L225 Difference]: With dead ends: 2364 [2024-11-28 05:20:02,856 INFO L226 Difference]: Without dead ends: 1445 [2024-11-28 05:20:02,857 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 05:20:02,858 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 258 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:20:02,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 36 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 05:20:02,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2024-11-28 05:20:02,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1183. [2024-11-28 05:20:02,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.1776649746192893) internal successors, (1392), 1182 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states 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 05:20:02,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1392 transitions. [2024-11-28 05:20:02,915 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1392 transitions. Word has length 131 [2024-11-28 05:20:02,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:20:02,915 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1392 transitions. [2024-11-28 05:20:02,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states 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 05:20:02,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1392 transitions. [2024-11-28 05:20:02,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 05:20:02,918 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:20:02,918 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:20:02,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:20:02,918 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:20:02,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:02,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1926441439, now seen corresponding path program 1 times [2024-11-28 05:20:02,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:02,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676957033] [2024-11-28 05:20:02,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:02,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:03,164 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:20:03,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:03,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676957033] [2024-11-28 05:20:03,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676957033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:03,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:20:03,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:20:03,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071410426] [2024-11-28 05:20:03,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:03,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:20:03,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:03,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:20:03,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:20:03,166 INFO L87 Difference]: Start difference. First operand 1183 states and 1392 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states 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 05:20:03,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:20:03,981 INFO L93 Difference]: Finished difference Result 3019 states and 3514 transitions. [2024-11-28 05:20:03,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:20:03,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 145 [2024-11-28 05:20:03,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:20:03,988 INFO L225 Difference]: With dead ends: 3019 [2024-11-28 05:20:03,988 INFO L226 Difference]: Without dead ends: 1707 [2024-11-28 05:20:03,990 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 05:20:03,991 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 245 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:20:03,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 39 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:20:03,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2024-11-28 05:20:04,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1707. [2024-11-28 05:20:04,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1706 states have (on average 1.1354044548651818) internal successors, (1937), 1706 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states 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 05:20:04,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1937 transitions. [2024-11-28 05:20:04,049 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1937 transitions. Word has length 145 [2024-11-28 05:20:04,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:20:04,049 INFO L471 AbstractCegarLoop]: Abstraction has 1707 states and 1937 transitions. [2024-11-28 05:20:04,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states 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 05:20:04,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1937 transitions. [2024-11-28 05:20:04,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 05:20:04,056 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:20:04,056 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:20:04,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:20:04,056 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:20:04,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:04,057 INFO L85 PathProgramCache]: Analyzing trace with hash -393628252, now seen corresponding path program 1 times [2024-11-28 05:20:04,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:04,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034107234] [2024-11-28 05:20:04,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:04,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:04,368 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:20:04,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:04,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034107234] [2024-11-28 05:20:04,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034107234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:04,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:20:04,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:20:04,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981864204] [2024-11-28 05:20:04,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:04,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:20:04,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:04,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:20:04,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:20:04,373 INFO L87 Difference]: Start difference. First operand 1707 states and 1937 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states 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 05:20:05,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:20:05,296 INFO L93 Difference]: Finished difference Result 3805 states and 4320 transitions. [2024-11-28 05:20:05,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:20:05,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 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 162 [2024-11-28 05:20:05,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:20:05,305 INFO L225 Difference]: With dead ends: 3805 [2024-11-28 05:20:05,305 INFO L226 Difference]: Without dead ends: 2100 [2024-11-28 05:20:05,307 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 05:20:05,309 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 225 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:20:05,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 26 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:20:05,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2024-11-28 05:20:05,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838. [2024-11-28 05:20:05,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.1262928688078389) internal successors, (2069), 1837 states have internal predecessors, (2069), 0 states have call successors, (0), 0 states 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 05:20:05,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2069 transitions. [2024-11-28 05:20:05,373 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2069 transitions. Word has length 162 [2024-11-28 05:20:05,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:20:05,375 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2069 transitions. [2024-11-28 05:20:05,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states 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 05:20:05,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2069 transitions. [2024-11-28 05:20:05,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 05:20:05,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:20:05,381 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:20:05,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:20:05,382 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:20:05,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:05,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1673306371, now seen corresponding path program 1 times [2024-11-28 05:20:05,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:05,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213633982] [2024-11-28 05:20:05,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:05,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:05,749 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-28 05:20:05,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:05,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213633982] [2024-11-28 05:20:05,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213633982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:05,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:20:05,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:20:05,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677635334] [2024-11-28 05:20:05,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:05,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:20:05,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:05,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:20:05,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:20:05,754 INFO L87 Difference]: Start difference. First operand 1838 states and 2069 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states 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 05:20:06,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:20:06,708 INFO L93 Difference]: Finished difference Result 3936 states and 4486 transitions. [2024-11-28 05:20:06,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:20:06,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 187 [2024-11-28 05:20:06,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:20:06,719 INFO L225 Difference]: With dead ends: 3936 [2024-11-28 05:20:06,719 INFO L226 Difference]: Without dead ends: 2100 [2024-11-28 05:20:06,722 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 05:20:06,723 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 373 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:20:06,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 42 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:20:06,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2024-11-28 05:20:06,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2100. [2024-11-28 05:20:06,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.1272034302048595) internal successors, (2366), 2099 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states 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 05:20:06,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2366 transitions. [2024-11-28 05:20:06,793 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2366 transitions. Word has length 187 [2024-11-28 05:20:06,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:20:06,794 INFO L471 AbstractCegarLoop]: Abstraction has 2100 states and 2366 transitions. [2024-11-28 05:20:06,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states 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 05:20:06,794 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2366 transitions. [2024-11-28 05:20:06,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-28 05:20:06,801 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:20:06,802 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:20:06,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:20:06,802 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:20:06,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:06,803 INFO L85 PathProgramCache]: Analyzing trace with hash 752393514, now seen corresponding path program 1 times [2024-11-28 05:20:06,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:06,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304282819] [2024-11-28 05:20:06,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:06,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:07,083 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-28 05:20:07,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:07,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304282819] [2024-11-28 05:20:07,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304282819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:07,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:20:07,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:20:07,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940249301] [2024-11-28 05:20:07,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:07,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:20:07,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:07,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:20:07,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:20:07,091 INFO L87 Difference]: Start difference. First operand 2100 states and 2366 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states 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 05:20:07,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:20:07,818 INFO L93 Difference]: Finished difference Result 4460 states and 5003 transitions. [2024-11-28 05:20:07,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:20:07,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 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 221 [2024-11-28 05:20:07,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:20:07,833 INFO L225 Difference]: With dead ends: 4460 [2024-11-28 05:20:07,833 INFO L226 Difference]: Without dead ends: 2362 [2024-11-28 05:20:07,837 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 05:20:07,840 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 86 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:20:07,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 179 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 05:20:07,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2024-11-28 05:20:07,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2231. [2024-11-28 05:20:07,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2230 states have (on average 1.1053811659192825) internal successors, (2465), 2230 states have internal predecessors, (2465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:20:07,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2465 transitions. [2024-11-28 05:20:07,939 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2465 transitions. Word has length 221 [2024-11-28 05:20:07,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:20:07,940 INFO L471 AbstractCegarLoop]: Abstraction has 2231 states and 2465 transitions. [2024-11-28 05:20:07,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states 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 05:20:07,941 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2465 transitions. [2024-11-28 05:20:07,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-28 05:20:07,950 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:20:07,950 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 05:20:07,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:20:07,951 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:20:07,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:07,951 INFO L85 PathProgramCache]: Analyzing trace with hash 816031795, now seen corresponding path program 1 times [2024-11-28 05:20:07,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:07,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944432183] [2024-11-28 05:20:07,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:07,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:08,836 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 175 proven. 83 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 05:20:08,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:08,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944432183] [2024-11-28 05:20:08,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944432183] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:20:08,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793949461] [2024-11-28 05:20:08,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:08,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:20:08,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:20:08,842 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:20:08,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:20:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:09,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:20:09,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:20:09,444 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-28 05:20:09,445 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:20:09,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793949461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:09,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:20:09,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-28 05:20:09,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335949896] [2024-11-28 05:20:09,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:09,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:20:09,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:09,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:20:09,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:20:09,448 INFO L87 Difference]: Start difference. First operand 2231 states and 2465 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 05:20:10,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:20:10,178 INFO L93 Difference]: Finished difference Result 4460 states and 4928 transitions. [2024-11-28 05:20:10,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:20:10,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 243 [2024-11-28 05:20:10,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:20:10,190 INFO L225 Difference]: With dead ends: 4460 [2024-11-28 05:20:10,190 INFO L226 Difference]: Without dead ends: 2231 [2024-11-28 05:20:10,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:20:10,195 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 43 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:20:10,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 24 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 05:20:10,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2024-11-28 05:20:10,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1969. [2024-11-28 05:20:10,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.1041666666666667) internal successors, (2173), 1968 states have internal predecessors, (2173), 0 states have call successors, (0), 0 states 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 05:20:10,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2173 transitions. [2024-11-28 05:20:10,261 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2173 transitions. Word has length 243 [2024-11-28 05:20:10,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:20:10,262 INFO L471 AbstractCegarLoop]: Abstraction has 1969 states and 2173 transitions. [2024-11-28 05:20:10,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 05:20:10,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2173 transitions. [2024-11-28 05:20:10,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-28 05:20:10,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:20:10,269 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2024-11-28 05:20:10,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 05:20:10,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:20:10,475 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:20:10,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:10,476 INFO L85 PathProgramCache]: Analyzing trace with hash 292356783, now seen corresponding path program 1 times [2024-11-28 05:20:10,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:10,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084847503] [2024-11-28 05:20:10,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:10,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:11,385 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 185 proven. 88 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 05:20:11,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:11,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084847503] [2024-11-28 05:20:11,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084847503] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:20:11,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623415842] [2024-11-28 05:20:11,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:11,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:20:11,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:20:11,389 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:20:11,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:20:11,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:11,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:20:11,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:20:11,967 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-28 05:20:11,968 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:20:11,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623415842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:11,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:20:11,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-28 05:20:11,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683804819] [2024-11-28 05:20:11,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:11,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:20:11,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:11,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:20:11,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:20:11,973 INFO L87 Difference]: Start difference. First operand 1969 states and 2173 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 05:20:12,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:20:12,677 INFO L93 Difference]: Finished difference Result 3936 states and 4344 transitions. [2024-11-28 05:20:12,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:20:12,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 248 [2024-11-28 05:20:12,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:20:12,684 INFO L225 Difference]: With dead ends: 3936 [2024-11-28 05:20:12,684 INFO L226 Difference]: Without dead ends: 1183 [2024-11-28 05:20:12,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:20:12,688 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 37 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:20:12,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 164 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 05:20:12,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2024-11-28 05:20:12,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2024-11-28 05:20:12,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.0532994923857868) internal successors, (1245), 1182 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states 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 05:20:12,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1245 transitions. [2024-11-28 05:20:12,724 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1245 transitions. Word has length 248 [2024-11-28 05:20:12,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:20:12,725 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1245 transitions. [2024-11-28 05:20:12,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 05:20:12,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1245 transitions. [2024-11-28 05:20:12,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-28 05:20:12,731 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:20:12,732 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 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, 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] [2024-11-28 05:20:12,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 05:20:12,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:20:12,932 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:20:12,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:12,933 INFO L85 PathProgramCache]: Analyzing trace with hash 16755098, now seen corresponding path program 1 times [2024-11-28 05:20:12,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:12,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112814236] [2024-11-28 05:20:12,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:12,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:14,126 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 226 proven. 132 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-28 05:20:14,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:14,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112814236] [2024-11-28 05:20:14,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112814236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:20:14,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127604919] [2024-11-28 05:20:14,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:14,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:20:14,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:20:14,131 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:20:14,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:20:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:14,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:20:14,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:20:14,721 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-28 05:20:14,721 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:20:14,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127604919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:14,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:20:14,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-28 05:20:14,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675530174] [2024-11-28 05:20:14,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:14,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:20:14,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:14,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:20:14,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:20:14,725 INFO L87 Difference]: Start difference. First operand 1183 states and 1245 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 05:20:15,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:20:15,308 INFO L93 Difference]: Finished difference Result 2362 states and 2487 transitions. [2024-11-28 05:20:15,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:20:15,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 266 [2024-11-28 05:20:15,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:20:15,310 INFO L225 Difference]: With dead ends: 2362 [2024-11-28 05:20:15,310 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 05:20:15,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:20:15,314 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 37 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:20:15,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 148 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:20:15,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 05:20:15,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 05:20:15,315 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 05:20:15,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 05:20:15,316 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 266 [2024-11-28 05:20:15,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:20:15,316 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 05:20:15,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 05:20:15,317 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 05:20:15,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 05:20:15,320 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 05:20:15,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 05:20:15,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 05:20:15,526 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:20:15,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 05:20:15,994 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 05:20:16,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:20:16 BoogieIcfgContainer [2024-11-28 05:20:16,015 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 05:20:16,016 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:20:16,016 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:20:16,017 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:20:16,018 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:19:54" (3/4) ... [2024-11-28 05:20:16,021 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 05:20:16,057 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-28 05:20:16,061 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 05:20:16,062 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 05:20:16,063 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 05:20:16,283 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 05:20:16,283 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 05:20:16,283 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:20:16,285 INFO L158 Benchmark]: Toolchain (without parser) took 24910.54ms. Allocated memory was 117.4MB in the beginning and 302.0MB in the end (delta: 184.5MB). Free memory was 90.8MB in the beginning and 181.0MB in the end (delta: -90.2MB). Peak memory consumption was 91.8MB. Max. memory is 16.1GB. [2024-11-28 05:20:16,286 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:20:16,287 INFO L158 Benchmark]: CACSL2BoogieTranslator took 803.15ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 64.0MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 05:20:16,288 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.13ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 58.5MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:20:16,289 INFO L158 Benchmark]: Boogie Preprocessor took 83.62ms. Allocated memory is still 117.4MB. Free memory was 58.5MB in the beginning and 53.5MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:20:16,290 INFO L158 Benchmark]: RCFGBuilder took 1922.21ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 53.5MB in the beginning and 122.6MB in the end (delta: -69.1MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2024-11-28 05:20:16,290 INFO L158 Benchmark]: TraceAbstraction took 21730.34ms. Allocated memory was 167.8MB in the beginning and 302.0MB in the end (delta: 134.2MB). Free memory was 121.9MB in the beginning and 190.9MB in the end (delta: -69.0MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. [2024-11-28 05:20:16,290 INFO L158 Benchmark]: Witness Printer took 267.37ms. Allocated memory is still 302.0MB. Free memory was 190.9MB in the beginning and 181.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:20:16,292 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 803.15ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 64.0MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.13ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 58.5MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.62ms. Allocated memory is still 117.4MB. Free memory was 58.5MB in the beginning and 53.5MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1922.21ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 53.5MB in the beginning and 122.6MB in the end (delta: -69.1MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * TraceAbstraction took 21730.34ms. Allocated memory was 167.8MB in the beginning and 302.0MB in the end (delta: 134.2MB). Free memory was 121.9MB in the beginning and 190.9MB in the end (delta: -69.0MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. * Witness Printer took 267.37ms. Allocated memory is still 302.0MB. Free memory was 190.9MB in the beginning and 181.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. 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: 489]: 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, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.1s, OverallIterations: 12, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2042 SdHoareTripleChecker+Valid, 9.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2042 mSDsluCounter, 894 SdHoareTripleChecker+Invalid, 8.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 92 mSDsCounter, 928 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5106 IncrementalHoareTripleChecker+Invalid, 6034 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 928 mSolverCounterUnsat, 802 mSDtfsCounter, 5106 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 800 GetRequests, 769 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2231occurred in iteration=9, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 1179 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 2810 NumberOfCodeBlocks, 2810 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2795 ConstructedInterpolants, 0 QuantifiedInterpolants, 14117 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1422 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 2299/2602 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: 593]: Loop Invariant Derived loop invariant: (((((((((((a17 <= 0) && (a21 == 1)) && (a16 <= 4)) || (((5 == a16) && (a17 <= 0)) && (a21 == 1))) || ((((((a12 == 8) && (a8 == 13)) && (a21 == 1)) && (a17 == 1)) && (a20 == 1)) && (a16 == 4))) || ((a21 <= 0) && (a17 <= 0))) || (((a21 <= 0) && (a17 == 1)) && (a16 <= 5))) || (((a7 != 1) && (a17 <= 0)) && (a21 == 1))) || ((((a7 != 1) && (6 <= a16)) && (a21 == 1)) && (a17 == 1))) || ((((a12 == 8) && (a7 != 1)) && (a21 == 1)) && (a17 == 1))) || ((((a20 != 1) && (a7 != 1)) && (a21 == 1)) && (a17 == 1))) RESULT: Ultimate proved your program to be correct! [2024-11-28 05:20:16,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a9f96-1a87-4178-805c-e9b6b77b7806/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE