./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-27.i --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_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/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_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-27.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/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_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/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 86036ac0bfa9ee938cdef92448e7d3f42361b0a9188b4ed11afb10dcc0600389 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:50:07,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:50:07,791 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 19:50:07,804 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:50:07,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:50:07,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:50:07,851 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:50:07,851 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:50:07,851 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:50:07,852 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:50:07,852 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:50:07,852 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:50:07,852 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:50:07,852 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:50:07,852 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:50:07,853 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:50:07,853 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:50:07,853 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:50:07,853 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:50:07,856 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:50:07,856 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:50:07,856 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:50:07,856 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:50:07,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:50:07,857 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:50:07,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:50:07,857 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:50:07,857 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:50:07,857 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:50:07,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:07,858 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:07,858 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:07,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:07,858 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:50:07,858 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:07,858 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:07,858 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:07,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:07,859 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:50:07,859 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:50:07,859 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:50:07,859 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:50:07,860 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:50:07,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:50:07,861 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:50:07,861 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:50:07,861 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:50:07,861 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:50:07,861 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_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/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 -> 86036ac0bfa9ee938cdef92448e7d3f42361b0a9188b4ed11afb10dcc0600389 [2024-11-27 19:50:08,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:50:08,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:50:08,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:50:08,274 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:50:08,274 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:50:08,276 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-27.i [2024-11-27 19:50:11,330 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/data/7d7c85a66/cdfe45cd00574b089a03cee8b9b15414/FLAG9d2098fc8 [2024-11-27 19:50:11,724 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:50:11,725 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-27.i [2024-11-27 19:50:11,737 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/data/7d7c85a66/cdfe45cd00574b089a03cee8b9b15414/FLAG9d2098fc8 [2024-11-27 19:50:11,935 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/data/7d7c85a66/cdfe45cd00574b089a03cee8b9b15414 [2024-11-27 19:50:11,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:50:11,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:50:11,942 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:11,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:50:11,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:50:11,950 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:11" (1/1) ... [2024-11-27 19:50:11,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@593e6452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:11, skipping insertion in model container [2024-11-27 19:50:11,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:11" (1/1) ... [2024-11-27 19:50:11,974 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:50:12,148 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_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-27.i[913,926] [2024-11-27 19:50:12,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:12,250 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:50:12,267 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_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-27.i[913,926] [2024-11-27 19:50:12,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:12,335 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:50:12,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:12 WrapperNode [2024-11-27 19:50:12,336 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:12,337 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:12,337 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:50:12,338 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:50:12,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:12" (1/1) ... [2024-11-27 19:50:12,364 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:12" (1/1) ... [2024-11-27 19:50:12,408 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2024-11-27 19:50:12,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:12,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:50:12,409 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:50:12,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:50:12,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:12" (1/1) ... [2024-11-27 19:50:12,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:12" (1/1) ... [2024-11-27 19:50:12,424 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:12" (1/1) ... [2024-11-27 19:50:12,440 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]. [2024-11-27 19:50:12,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:12" (1/1) ... [2024-11-27 19:50:12,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:12" (1/1) ... [2024-11-27 19:50:12,445 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:12" (1/1) ... [2024-11-27 19:50:12,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:12" (1/1) ... [2024-11-27 19:50:12,461 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:12" (1/1) ... [2024-11-27 19:50:12,462 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:12" (1/1) ... [2024-11-27 19:50:12,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:12" (1/1) ... [2024-11-27 19:50:12,468 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:50:12,473 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:50:12,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:50:12,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:50:12,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:12" (1/1) ... [2024-11-27 19:50:12,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:12,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:12,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:50:12,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:50:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:50:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 19:50:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 19:50:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:50:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:50:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:50:12,651 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:50:12,654 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:50:12,978 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-27 19:50:12,978 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:50:12,993 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:50:12,993 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 19:50:12,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:12 BoogieIcfgContainer [2024-11-27 19:50:12,994 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:50:12,997 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:50:12,997 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:50:13,004 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:50:13,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:50:11" (1/3) ... [2024-11-27 19:50:13,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4917a262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:13, skipping insertion in model container [2024-11-27 19:50:13,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:12" (2/3) ... [2024-11-27 19:50:13,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4917a262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:13, skipping insertion in model container [2024-11-27 19:50:13,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:12" (3/3) ... [2024-11-27 19:50:13,008 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-27.i [2024-11-27 19:50:13,027 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:50:13,029 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-27.i that has 2 procedures, 53 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 19:50:13,109 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:50:13,131 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;@3c05f2f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:50:13,131 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:50:13,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 19:50:13,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-27 19:50:13,150 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:13,150 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:13,151 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:13,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:13,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1570629044, now seen corresponding path program 1 times [2024-11-27 19:50:13,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:13,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504063584] [2024-11-27 19:50:13,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:13,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:13,596 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-27 19:50:13,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:13,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504063584] [2024-11-27 19:50:13,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504063584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:13,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776450846] [2024-11-27 19:50:13,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:13,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:13,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:13,608 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:13,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:50:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:13,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 19:50:13,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:13,899 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-27 19:50:13,899 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:50:13,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776450846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:13,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:50:13,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 19:50:13,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119439923] [2024-11-27 19:50:13,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:13,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 19:50:13,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:13,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 19:50:13,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:50:13,928 INFO L87 Difference]: Start difference. First operand has 53 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 19:50:13,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:13,956 INFO L93 Difference]: Finished difference Result 99 states and 167 transitions. [2024-11-27 19:50:13,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 19:50:13,958 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 109 [2024-11-27 19:50:13,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:13,964 INFO L225 Difference]: With dead ends: 99 [2024-11-27 19:50:13,964 INFO L226 Difference]: Without dead ends: 49 [2024-11-27 19:50:13,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:50:13,971 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:13,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:50:13,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-27 19:50:14,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-27 19:50:14,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 19:50:14,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2024-11-27 19:50:14,029 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 109 [2024-11-27 19:50:14,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:14,030 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2024-11-27 19:50:14,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 19:50:14,031 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2024-11-27 19:50:14,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-27 19:50:14,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:14,035 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:14,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:50:14,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 19:50:14,239 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:14,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:14,240 INFO L85 PathProgramCache]: Analyzing trace with hash 868342326, now seen corresponding path program 1 times [2024-11-27 19:50:14,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:14,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329786765] [2024-11-27 19:50:14,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:14,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:22,258 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 19:50:22,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:22,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329786765] [2024-11-27 19:50:22,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329786765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:22,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:22,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 19:50:22,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608933649] [2024-11-27 19:50:22,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:22,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 19:50:22,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:22,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 19:50:22,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:50:22,266 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:50:23,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:23,509 INFO L93 Difference]: Finished difference Result 110 states and 142 transitions. [2024-11-27 19:50:23,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 19:50:23,510 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-27 19:50:23,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:23,515 INFO L225 Difference]: With dead ends: 110 [2024-11-27 19:50:23,516 INFO L226 Difference]: Without dead ends: 108 [2024-11-27 19:50:23,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:50:23,519 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 59 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:23,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 387 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 19:50:23,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-27 19:50:23,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 75. [2024-11-27 19:50:23,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 54 states have internal predecessors, (67), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-27 19:50:23,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 105 transitions. [2024-11-27 19:50:23,564 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 105 transitions. Word has length 109 [2024-11-27 19:50:23,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:23,568 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 105 transitions. [2024-11-27 19:50:23,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:50:23,568 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 105 transitions. [2024-11-27 19:50:23,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-27 19:50:23,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:23,570 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:23,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:50:23,571 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:23,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:23,573 INFO L85 PathProgramCache]: Analyzing trace with hash -906665036, now seen corresponding path program 1 times [2024-11-27 19:50:23,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:23,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591858491] [2024-11-27 19:50:23,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:23,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:30,399 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 19:50:30,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:30,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591858491] [2024-11-27 19:50:30,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591858491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:30,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:30,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 19:50:30,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924461990] [2024-11-27 19:50:30,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:30,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 19:50:30,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:30,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 19:50:30,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:50:30,403 INFO L87 Difference]: Start difference. First operand 75 states and 105 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:50:31,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:31,251 INFO L93 Difference]: Finished difference Result 108 states and 140 transitions. [2024-11-27 19:50:31,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 19:50:31,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-27 19:50:31,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:31,256 INFO L225 Difference]: With dead ends: 108 [2024-11-27 19:50:31,257 INFO L226 Difference]: Without dead ends: 106 [2024-11-27 19:50:31,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:50:31,258 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 83 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:31,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 294 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:50:31,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-27 19:50:31,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 75. [2024-11-27 19:50:31,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 54 states have internal predecessors, (67), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-27 19:50:31,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 105 transitions. [2024-11-27 19:50:31,289 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 105 transitions. Word has length 109 [2024-11-27 19:50:31,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:31,290 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 105 transitions. [2024-11-27 19:50:31,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:50:31,291 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 105 transitions. [2024-11-27 19:50:31,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-27 19:50:31,295 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:31,295 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:31,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:50:31,296 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:31,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:31,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1569406904, now seen corresponding path program 1 times [2024-11-27 19:50:31,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:31,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120513371] [2024-11-27 19:50:31,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:31,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:33,535 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 19:50:33,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:33,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120513371] [2024-11-27 19:50:33,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120513371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:33,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:33,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 19:50:33,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105632851] [2024-11-27 19:50:33,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:33,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 19:50:33,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:33,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 19:50:33,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:50:33,540 INFO L87 Difference]: Start difference. First operand 75 states and 105 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:50:34,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:34,186 INFO L93 Difference]: Finished difference Result 185 states and 250 transitions. [2024-11-27 19:50:34,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 19:50:34,187 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-27 19:50:34,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:34,191 INFO L225 Difference]: With dead ends: 185 [2024-11-27 19:50:34,191 INFO L226 Difference]: Without dead ends: 113 [2024-11-27 19:50:34,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-27 19:50:34,193 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 61 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:34,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 429 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:50:34,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-27 19:50:34,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 75. [2024-11-27 19:50:34,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 54 states have internal predecessors, (65), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-27 19:50:34,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 103 transitions. [2024-11-27 19:50:34,211 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 103 transitions. Word has length 109 [2024-11-27 19:50:34,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:34,211 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 103 transitions. [2024-11-27 19:50:34,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:50:34,212 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 103 transitions. [2024-11-27 19:50:34,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-27 19:50:34,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:34,214 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:34,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 19:50:34,215 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:34,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:34,215 INFO L85 PathProgramCache]: Analyzing trace with hash -205600458, now seen corresponding path program 1 times [2024-11-27 19:50:34,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:34,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371311861] [2024-11-27 19:50:34,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:34,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:37,019 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 19:50:37,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:37,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371311861] [2024-11-27 19:50:37,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371311861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:37,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:37,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 19:50:37,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530467543] [2024-11-27 19:50:37,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:37,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 19:50:37,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:37,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 19:50:37,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-27 19:50:37,023 INFO L87 Difference]: Start difference. First operand 75 states and 103 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:50:38,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:38,248 INFO L93 Difference]: Finished difference Result 152 states and 200 transitions. [2024-11-27 19:50:38,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 19:50:38,249 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-27 19:50:38,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:38,251 INFO L225 Difference]: With dead ends: 152 [2024-11-27 19:50:38,251 INFO L226 Difference]: Without dead ends: 150 [2024-11-27 19:50:38,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-11-27 19:50:38,253 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 104 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:38,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 400 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:50:38,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-27 19:50:38,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 129. [2024-11-27 19:50:38,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 88 states have (on average 1.1931818181818181) internal successors, (105), 89 states have internal predecessors, (105), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 19:50:38,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 177 transitions. [2024-11-27 19:50:38,289 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 177 transitions. Word has length 109 [2024-11-27 19:50:38,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:38,289 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 177 transitions. [2024-11-27 19:50:38,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:50:38,290 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 177 transitions. [2024-11-27 19:50:38,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-27 19:50:38,292 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:38,292 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:38,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 19:50:38,293 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:38,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:38,294 INFO L85 PathProgramCache]: Analyzing trace with hash 913248035, now seen corresponding path program 1 times [2024-11-27 19:50:38,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:38,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493083275] [2024-11-27 19:50:38,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:38,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:45,630 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 19:50:45,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:45,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493083275] [2024-11-27 19:50:45,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493083275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:45,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:45,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 19:50:45,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877166309] [2024-11-27 19:50:45,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:45,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 19:50:45,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:45,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 19:50:45,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:50:45,633 INFO L87 Difference]: Start difference. First operand 129 states and 177 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:50:48,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:48,316 INFO L93 Difference]: Finished difference Result 187 states and 242 transitions. [2024-11-27 19:50:48,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 19:50:48,317 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 110 [2024-11-27 19:50:48,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:48,321 INFO L225 Difference]: With dead ends: 187 [2024-11-27 19:50:48,322 INFO L226 Difference]: Without dead ends: 185 [2024-11-27 19:50:48,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-27 19:50:48,324 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 93 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:48,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 354 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 19:50:48,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-27 19:50:48,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 134. [2024-11-27 19:50:48,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 93 states have (on average 1.2150537634408602) internal successors, (113), 94 states have internal predecessors, (113), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 19:50:48,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 185 transitions. [2024-11-27 19:50:48,377 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 185 transitions. Word has length 110 [2024-11-27 19:50:48,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:48,380 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 185 transitions. [2024-11-27 19:50:48,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:50:48,381 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 185 transitions. [2024-11-27 19:50:48,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-27 19:50:48,386 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:48,386 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:48,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 19:50:48,387 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:48,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:48,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1722594661, now seen corresponding path program 1 times [2024-11-27 19:50:48,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:48,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336852671] [2024-11-27 19:50:48,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:48,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:59,710 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 19:50:59,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:59,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336852671] [2024-11-27 19:50:59,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336852671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:59,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:59,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 19:50:59,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804560195] [2024-11-27 19:50:59,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:59,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 19:50:59,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:59,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 19:50:59,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:50:59,713 INFO L87 Difference]: Start difference. First operand 134 states and 185 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:51:07,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:07,687 INFO L93 Difference]: Finished difference Result 182 states and 237 transitions. [2024-11-27 19:51:07,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 19:51:07,688 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 110 [2024-11-27 19:51:07,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:07,690 INFO L225 Difference]: With dead ends: 182 [2024-11-27 19:51:07,690 INFO L226 Difference]: Without dead ends: 180 [2024-11-27 19:51:07,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2024-11-27 19:51:07,691 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 72 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:07,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 483 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 19:51:07,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-27 19:51:07,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 134. [2024-11-27 19:51:07,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 93 states have (on average 1.2150537634408602) internal successors, (113), 94 states have internal predecessors, (113), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 19:51:07,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 185 transitions. [2024-11-27 19:51:07,740 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 185 transitions. Word has length 110 [2024-11-27 19:51:07,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:07,744 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 185 transitions. [2024-11-27 19:51:07,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:51:07,744 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 185 transitions. [2024-11-27 19:51:07,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-27 19:51:07,748 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:07,748 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:07,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 19:51:07,749 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:07,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:07,750 INFO L85 PathProgramCache]: Analyzing trace with hash -2140231638, now seen corresponding path program 1 times [2024-11-27 19:51:07,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:07,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652799986] [2024-11-27 19:51:07,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:07,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:07,843 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 19:51:07,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:07,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652799986] [2024-11-27 19:51:07,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652799986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:07,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:07,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:51:07,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128151959] [2024-11-27 19:51:07,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:07,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:07,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:07,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:07,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:07,848 INFO L87 Difference]: Start difference. First operand 134 states and 185 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:51:07,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:07,933 INFO L93 Difference]: Finished difference Result 365 states and 507 transitions. [2024-11-27 19:51:07,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:07,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 110 [2024-11-27 19:51:07,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:07,937 INFO L225 Difference]: With dead ends: 365 [2024-11-27 19:51:07,937 INFO L226 Difference]: Without dead ends: 238 [2024-11-27 19:51:07,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:51:07,943 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 34 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:07,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 217 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:07,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-27 19:51:08,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 236. [2024-11-27 19:51:08,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 158 states have internal predecessors, (187), 70 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-27 19:51:08,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 327 transitions. [2024-11-27 19:51:08,014 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 327 transitions. Word has length 110 [2024-11-27 19:51:08,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:08,015 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 327 transitions. [2024-11-27 19:51:08,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:51:08,015 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 327 transitions. [2024-11-27 19:51:08,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-27 19:51:08,017 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:08,017 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:08,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 19:51:08,018 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:08,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:08,018 INFO L85 PathProgramCache]: Analyzing trace with hash 379728296, now seen corresponding path program 1 times [2024-11-27 19:51:08,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:08,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710842224] [2024-11-27 19:51:08,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:08,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:11,567 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 19:51:11,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:11,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710842224] [2024-11-27 19:51:11,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710842224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:11,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:11,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 19:51:11,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481002623] [2024-11-27 19:51:11,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:11,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 19:51:11,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:11,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 19:51:11,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-27 19:51:11,570 INFO L87 Difference]: Start difference. First operand 236 states and 327 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:51:12,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:12,604 INFO L93 Difference]: Finished difference Result 478 states and 650 transitions. [2024-11-27 19:51:12,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 19:51:12,604 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 110 [2024-11-27 19:51:12,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:12,608 INFO L225 Difference]: With dead ends: 478 [2024-11-27 19:51:12,608 INFO L226 Difference]: Without dead ends: 350 [2024-11-27 19:51:12,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2024-11-27 19:51:12,610 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 164 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:12,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 374 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:51:12,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-27 19:51:12,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 299. [2024-11-27 19:51:12,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 201 states have (on average 1.1840796019900497) internal successors, (238), 202 states have internal predecessors, (238), 87 states have call successors, (87), 10 states have call predecessors, (87), 10 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-27 19:51:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 412 transitions. [2024-11-27 19:51:12,698 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 412 transitions. Word has length 110 [2024-11-27 19:51:12,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:12,699 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 412 transitions. [2024-11-27 19:51:12,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:51:12,699 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 412 transitions. [2024-11-27 19:51:12,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-27 19:51:12,701 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:12,701 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:12,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 19:51:12,701 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:12,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:12,702 INFO L85 PathProgramCache]: Analyzing trace with hash 637893734, now seen corresponding path program 1 times [2024-11-27 19:51:12,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:12,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107111058] [2024-11-27 19:51:12,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:12,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:15,792 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 19:51:15,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:15,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107111058] [2024-11-27 19:51:15,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107111058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:15,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:15,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 19:51:15,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541368073] [2024-11-27 19:51:15,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:15,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 19:51:15,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:15,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 19:51:15,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-27 19:51:15,794 INFO L87 Difference]: Start difference. First operand 299 states and 412 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 19:51:17,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:17,130 INFO L93 Difference]: Finished difference Result 302 states and 414 transitions. [2024-11-27 19:51:17,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 19:51:17,131 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 110 [2024-11-27 19:51:17,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:17,134 INFO L225 Difference]: With dead ends: 302 [2024-11-27 19:51:17,134 INFO L226 Difference]: Without dead ends: 300 [2024-11-27 19:51:17,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2024-11-27 19:51:17,136 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 85 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:17,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 333 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 19:51:17,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-27 19:51:17,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 299. [2024-11-27 19:51:17,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 201 states have (on average 1.1791044776119404) internal successors, (237), 202 states have internal predecessors, (237), 87 states have call successors, (87), 10 states have call predecessors, (87), 10 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-27 19:51:17,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 411 transitions. [2024-11-27 19:51:17,197 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 411 transitions. Word has length 110 [2024-11-27 19:51:17,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:17,198 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 411 transitions. [2024-11-27 19:51:17,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 19:51:17,199 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 411 transitions. [2024-11-27 19:51:17,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-27 19:51:17,200 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:17,200 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:17,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 19:51:17,201 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:17,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:17,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1765204623, now seen corresponding path program 1 times [2024-11-27 19:51:17,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:17,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419287020] [2024-11-27 19:51:17,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:17,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:23,987 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 19:51:23,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:23,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419287020] [2024-11-27 19:51:23,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419287020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:23,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:23,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 19:51:23,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472739882] [2024-11-27 19:51:23,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:23,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 19:51:23,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:23,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 19:51:23,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:51:23,989 INFO L87 Difference]: Start difference. First operand 299 states and 411 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:51:27,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:27,698 INFO L93 Difference]: Finished difference Result 449 states and 601 transitions. [2024-11-27 19:51:27,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 19:51:27,699 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2024-11-27 19:51:27,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:27,702 INFO L225 Difference]: With dead ends: 449 [2024-11-27 19:51:27,702 INFO L226 Difference]: Without dead ends: 315 [2024-11-27 19:51:27,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2024-11-27 19:51:27,704 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 104 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:27,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 600 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 19:51:27,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-27 19:51:27,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 241. [2024-11-27 19:51:27,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 162 states have (on average 1.1666666666666667) internal successors, (189), 163 states have internal predecessors, (189), 70 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-27 19:51:27,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 329 transitions. [2024-11-27 19:51:27,753 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 329 transitions. Word has length 111 [2024-11-27 19:51:27,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:27,754 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 329 transitions. [2024-11-27 19:51:27,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:51:27,754 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 329 transitions. [2024-11-27 19:51:27,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-27 19:51:27,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:27,756 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:27,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 19:51:27,756 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:27,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:27,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1763357581, now seen corresponding path program 1 times [2024-11-27 19:51:27,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:27,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229704933] [2024-11-27 19:51:27,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:27,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:33,963 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 19:51:33,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:33,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229704933] [2024-11-27 19:51:33,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229704933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:33,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:33,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 19:51:33,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060232258] [2024-11-27 19:51:33,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:33,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 19:51:33,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:33,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 19:51:33,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:51:33,965 INFO L87 Difference]: Start difference. First operand 241 states and 329 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:51:40,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:40,775 INFO L93 Difference]: Finished difference Result 306 states and 399 transitions. [2024-11-27 19:51:40,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 19:51:40,776 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2024-11-27 19:51:40,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:40,779 INFO L225 Difference]: With dead ends: 306 [2024-11-27 19:51:40,779 INFO L226 Difference]: Without dead ends: 304 [2024-11-27 19:51:40,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-11-27 19:51:40,781 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 85 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:40,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 550 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 19:51:40,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-27 19:51:40,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 240. [2024-11-27 19:51:40,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 161 states have (on average 1.1614906832298137) internal successors, (187), 162 states have internal predecessors, (187), 70 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-27 19:51:40,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 327 transitions. [2024-11-27 19:51:40,840 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 327 transitions. Word has length 111 [2024-11-27 19:51:40,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:40,840 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 327 transitions. [2024-11-27 19:51:40,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:51:40,841 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 327 transitions. [2024-11-27 19:51:40,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-27 19:51:40,842 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:40,842 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:40,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 19:51:40,843 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:40,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:40,843 INFO L85 PathProgramCache]: Analyzing trace with hash -955857997, now seen corresponding path program 1 times [2024-11-27 19:51:40,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:40,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951852803] [2024-11-27 19:51:40,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:40,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:46,539 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 19:51:46,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:46,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951852803] [2024-11-27 19:51:46,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951852803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:46,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:46,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 19:51:46,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492799338] [2024-11-27 19:51:46,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:46,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 19:51:46,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:46,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 19:51:46,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:51:46,541 INFO L87 Difference]: Start difference. First operand 240 states and 327 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:51:48,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:48,790 INFO L93 Difference]: Finished difference Result 299 states and 391 transitions. [2024-11-27 19:51:48,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 19:51:48,792 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2024-11-27 19:51:48,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:48,794 INFO L225 Difference]: With dead ends: 299 [2024-11-27 19:51:48,794 INFO L226 Difference]: Without dead ends: 297 [2024-11-27 19:51:48,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-27 19:51:48,796 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 86 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:48,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 558 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 19:51:48,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-27 19:51:48,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 241. [2024-11-27 19:51:48,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 162 states have (on average 1.1666666666666667) internal successors, (189), 163 states have internal predecessors, (189), 70 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-27 19:51:48,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 329 transitions. [2024-11-27 19:51:48,851 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 329 transitions. Word has length 111 [2024-11-27 19:51:48,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:48,852 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 329 transitions. [2024-11-27 19:51:48,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:51:48,852 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 329 transitions. [2024-11-27 19:51:48,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-27 19:51:48,853 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:48,854 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:48,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 19:51:48,854 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:48,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:48,855 INFO L85 PathProgramCache]: Analyzing trace with hash -954010955, now seen corresponding path program 1 times [2024-11-27 19:51:48,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:48,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495939496] [2024-11-27 19:51:48,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:48,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:54,271 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 19:51:54,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:54,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495939496] [2024-11-27 19:51:54,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495939496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:54,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:54,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 19:51:54,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507366690] [2024-11-27 19:51:54,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:54,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 19:51:54,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:54,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 19:51:54,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:51:54,273 INFO L87 Difference]: Start difference. First operand 241 states and 329 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:51:55,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:55,661 INFO L93 Difference]: Finished difference Result 297 states and 389 transitions. [2024-11-27 19:51:55,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 19:51:55,662 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2024-11-27 19:51:55,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:55,665 INFO L225 Difference]: With dead ends: 297 [2024-11-27 19:51:55,665 INFO L226 Difference]: Without dead ends: 295 [2024-11-27 19:51:55,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-27 19:51:55,666 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 82 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:55,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 494 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 19:51:55,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-27 19:51:55,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 238. [2024-11-27 19:51:55,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 159 states have (on average 1.1635220125786163) internal successors, (185), 160 states have internal predecessors, (185), 70 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-27 19:51:55,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 325 transitions. [2024-11-27 19:51:55,709 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 325 transitions. Word has length 111 [2024-11-27 19:51:55,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:55,709 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 325 transitions. [2024-11-27 19:51:55,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:51:55,710 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 325 transitions. [2024-11-27 19:51:55,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-27 19:51:55,712 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:55,713 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:55,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 19:51:55,713 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:55,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:55,714 INFO L85 PathProgramCache]: Analyzing trace with hash -12755988, now seen corresponding path program 1 times [2024-11-27 19:51:55,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:55,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110318472] [2024-11-27 19:51:55,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:55,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:58,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2281 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2272 trivial. 0 not checked. [2024-11-27 19:51:58,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:58,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110318472] [2024-11-27 19:51:58,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110318472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:58,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:58,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 19:51:58,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007561778] [2024-11-27 19:51:58,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:58,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 19:51:58,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:58,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 19:51:58,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-27 19:51:58,284 INFO L87 Difference]: Start difference. First operand 238 states and 325 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:51:58,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:58,769 INFO L93 Difference]: Finished difference Result 305 states and 396 transitions. [2024-11-27 19:51:58,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 19:51:58,769 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 215 [2024-11-27 19:51:58,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:58,771 INFO L225 Difference]: With dead ends: 305 [2024-11-27 19:51:58,771 INFO L226 Difference]: Without dead ends: 303 [2024-11-27 19:51:58,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:51:58,772 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 55 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:58,773 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 351 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 19:51:58,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-27 19:51:58,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 184. [2024-11-27 19:51:58,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 124 states have (on average 1.1693548387096775) internal successors, (145), 125 states have internal predecessors, (145), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-27 19:51:58,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 251 transitions. [2024-11-27 19:51:58,817 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 251 transitions. Word has length 215 [2024-11-27 19:51:58,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:58,818 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 251 transitions. [2024-11-27 19:51:58,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 19:51:58,818 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 251 transitions. [2024-11-27 19:51:58,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-27 19:51:58,821 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:58,821 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:58,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 19:51:58,821 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:58,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:58,822 INFO L85 PathProgramCache]: Analyzing trace with hash -457020364, now seen corresponding path program 1 times [2024-11-27 19:51:58,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:58,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731068270] [2024-11-27 19:51:58,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:58,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:01,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2281 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-27 19:52:01,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:01,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731068270] [2024-11-27 19:52:01,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731068270] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:52:01,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884536019] [2024-11-27 19:52:01,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:01,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:01,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:52:01,980 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:52:01,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ad2d085-9cfa-4348-8a0c-09d1b86a782d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:52:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:02,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 19:52:02,233 INFO L279 TraceCheckSpWp]: Computing forward predicates...