./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-2.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_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/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_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/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_14491b98-d50a-418c-9a97-26ac44d77970/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 8d5a9dc649f7d9ee20b528a56ea1dacc56986892fbe7bb53a5fab357faf2d873 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:17:24,513 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:17:24,574 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:17:24,579 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:17:24,580 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:17:24,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:17:24,605 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:17:24,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:17:24,605 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:17:24,605 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:17:24,606 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:17:24,606 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:17:24,606 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:17:24,606 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:17:24,606 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:17:24,606 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:17:24,607 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:17:24,607 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:17:24,607 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:17:24,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:17:24,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:17:24,607 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:17:24,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:17:24,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:17:24,607 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:17:24,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:17:24,608 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:17:24,608 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:17:24,608 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:17:24,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:17:24,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:17:24,608 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:17:24,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:17:24,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:17:24,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:17:24,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:17:24,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:17:24,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:17:24,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:17:24,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:17:24,609 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:17:24,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:17:24,609 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:17:24,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:17:24,610 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:17:24,610 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:17:24,610 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:17:24,610 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:17:24,610 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_14491b98-d50a-418c-9a97-26ac44d77970/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 -> 8d5a9dc649f7d9ee20b528a56ea1dacc56986892fbe7bb53a5fab357faf2d873 [2024-11-27 20:17:24,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:17:24,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:17:24,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:17:24,909 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:17:24,911 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:17:24,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-2.i [2024-11-27 20:17:27,907 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/data/f94b561e0/5d6f024c7dd5470c993b36ea2186ac98/FLAG8120f490e [2024-11-27 20:17:28,350 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:17:28,351 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-2.i [2024-11-27 20:17:28,374 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/data/f94b561e0/5d6f024c7dd5470c993b36ea2186ac98/FLAG8120f490e [2024-11-27 20:17:28,406 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/data/f94b561e0/5d6f024c7dd5470c993b36ea2186ac98 [2024-11-27 20:17:28,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:17:28,412 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:17:28,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:17:28,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:17:28,423 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:17:28,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:17:28" (1/1) ... [2024-11-27 20:17:28,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c360b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:28, skipping insertion in model container [2024-11-27 20:17:28,430 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:17:28" (1/1) ... [2024-11-27 20:17:28,481 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:17:28,692 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_14491b98-d50a-418c-9a97-26ac44d77970/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-2.i[915,928] [2024-11-27 20:17:28,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:17:28,931 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:17:28,942 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_14491b98-d50a-418c-9a97-26ac44d77970/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-2.i[915,928] [2024-11-27 20:17:29,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:17:29,132 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:17:29,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:29 WrapperNode [2024-11-27 20:17:29,133 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:17:29,134 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:17:29,134 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:17:29,134 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:17:29,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:29" (1/1) ... [2024-11-27 20:17:29,170 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:29" (1/1) ... [2024-11-27 20:17:29,296 INFO L138 Inliner]: procedures = 26, calls = 112, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 820 [2024-11-27 20:17:29,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:17:29,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:17:29,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:17:29,298 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:17:29,308 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:29" (1/1) ... [2024-11-27 20:17:29,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:29" (1/1) ... [2024-11-27 20:17:29,339 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:29" (1/1) ... [2024-11-27 20:17:29,428 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 20:17:29,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:29" (1/1) ... [2024-11-27 20:17:29,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:29" (1/1) ... [2024-11-27 20:17:29,463 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:29" (1/1) ... [2024-11-27 20:17:29,465 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:29" (1/1) ... [2024-11-27 20:17:29,483 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:29" (1/1) ... [2024-11-27 20:17:29,494 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:29" (1/1) ... [2024-11-27 20:17:29,506 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:29" (1/1) ... [2024-11-27 20:17:29,526 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:17:29,528 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:17:29,528 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:17:29,528 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:17:29,529 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:29" (1/1) ... [2024-11-27 20:17:29,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:17:29,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:17:29,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:17:29,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:17:29,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:17:29,600 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:17:29,600 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:17:29,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:17:29,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:17:29,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:17:29,829 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:17:29,831 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:17:31,559 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-27 20:17:31,559 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:17:31,589 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:17:31,589 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:17:31,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:17:31 BoogieIcfgContainer [2024-11-27 20:17:31,589 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:17:31,596 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:17:31,596 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:17:31,603 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:17:31,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:17:28" (1/3) ... [2024-11-27 20:17:31,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54369561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:17:31, skipping insertion in model container [2024-11-27 20:17:31,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:29" (2/3) ... [2024-11-27 20:17:31,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54369561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:17:31, skipping insertion in model container [2024-11-27 20:17:31,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:17:31" (3/3) ... [2024-11-27 20:17:31,609 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-2.i [2024-11-27 20:17:31,627 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:17:31,630 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-2.i that has 2 procedures, 335 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:17:31,734 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:17:31,749 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;@5022046a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:17:31,749 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:17:31,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 335 states, 233 states have (on average 1.5836909871244635) internal successors, (369), 234 states have internal predecessors, (369), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-27 20:17:31,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-27 20:17:31,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:31,816 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:31,817 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:17:31,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:31,824 INFO L85 PathProgramCache]: Analyzing trace with hash -13041328, now seen corresponding path program 1 times [2024-11-27 20:17:31,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:31,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669005345] [2024-11-27 20:17:31,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:31,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:32,832 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 19208 trivial. 0 not checked. [2024-11-27 20:17:32,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:32,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669005345] [2024-11-27 20:17:32,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669005345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:17:32,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111866758] [2024-11-27 20:17:32,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:32,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:32,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:17:32,844 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:17:32,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:17:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:33,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:17:33,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:17:33,540 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 19208 trivial. 0 not checked. [2024-11-27 20:17:33,540 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:17:33,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111866758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:33,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:17:33,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 20:17:33,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652596237] [2024-11-27 20:17:33,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:33,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:17:33,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:33,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:17:33,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:17:33,579 INFO L87 Difference]: Start difference. First operand has 335 states, 233 states have (on average 1.5836909871244635) internal successors, (369), 234 states have internal predecessors, (369), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) Second operand has 2 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 2 states have call successors, (99) [2024-11-27 20:17:33,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:33,650 INFO L93 Difference]: Finished difference Result 662 states and 1225 transitions. [2024-11-27 20:17:33,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:17:33,657 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 2 states have call successors, (99) Word has length 642 [2024-11-27 20:17:33,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:33,674 INFO L225 Difference]: With dead ends: 662 [2024-11-27 20:17:33,674 INFO L226 Difference]: Without dead ends: 330 [2024-11-27 20:17:33,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 643 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 20:17:33,689 INFO L435 NwaCegarLoop]: 552 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, 552 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 20:17:33,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:17:33,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-11-27 20:17:33,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2024-11-27 20:17:33,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 229 states have (on average 1.5458515283842795) internal successors, (354), 229 states have internal predecessors, (354), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-27 20:17:33,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 552 transitions. [2024-11-27 20:17:33,814 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 552 transitions. Word has length 642 [2024-11-27 20:17:33,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:33,815 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 552 transitions. [2024-11-27 20:17:33,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 2 states have call successors, (99), 2 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 2 states have call successors, (99) [2024-11-27 20:17:33,815 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 552 transitions. [2024-11-27 20:17:33,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-27 20:17:33,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:33,837 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:33,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:17:34,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:34,039 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:17:34,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:34,041 INFO L85 PathProgramCache]: Analyzing trace with hash -83382697, now seen corresponding path program 1 times [2024-11-27 20:17:34,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:34,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371350986] [2024-11-27 20:17:34,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:34,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:34,947 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 20:17:34,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:34,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371350986] [2024-11-27 20:17:34,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371350986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:34,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:34,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:17:34,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154727552] [2024-11-27 20:17:34,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:34,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:17:34,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:34,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:17:34,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:17:34,954 INFO L87 Difference]: Start difference. First operand 330 states and 552 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:35,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:35,116 INFO L93 Difference]: Finished difference Result 851 states and 1429 transitions. [2024-11-27 20:17:35,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:17:35,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 643 [2024-11-27 20:17:35,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:35,126 INFO L225 Difference]: With dead ends: 851 [2024-11-27 20:17:35,126 INFO L226 Difference]: Without dead ends: 524 [2024-11-27 20:17:35,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:17:35,131 INFO L435 NwaCegarLoop]: 604 mSDtfsCounter, 334 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:35,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 1117 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:17:35,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2024-11-27 20:17:35,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 521. [2024-11-27 20:17:35,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 392 states have (on average 1.5841836734693877) internal successors, (621), 393 states have internal predecessors, (621), 126 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-27 20:17:35,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 873 transitions. [2024-11-27 20:17:35,238 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 873 transitions. Word has length 643 [2024-11-27 20:17:35,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:35,242 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 873 transitions. [2024-11-27 20:17:35,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:35,243 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 873 transitions. [2024-11-27 20:17:35,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-27 20:17:35,266 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:35,267 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:35,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:17:35,268 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:17:35,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:35,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1483375253, now seen corresponding path program 1 times [2024-11-27 20:17:35,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:35,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422686708] [2024-11-27 20:17:35,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:35,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:36,100 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 20:17:36,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:36,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422686708] [2024-11-27 20:17:36,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422686708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:36,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:36,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:17:36,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890958668] [2024-11-27 20:17:36,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:36,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:17:36,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:36,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:17:36,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:17:36,106 INFO L87 Difference]: Start difference. First operand 521 states and 873 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:36,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:36,246 INFO L93 Difference]: Finished difference Result 1046 states and 1748 transitions. [2024-11-27 20:17:36,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:17:36,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 643 [2024-11-27 20:17:36,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:36,260 INFO L225 Difference]: With dead ends: 1046 [2024-11-27 20:17:36,260 INFO L226 Difference]: Without dead ends: 528 [2024-11-27 20:17:36,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:17:36,266 INFO L435 NwaCegarLoop]: 623 mSDtfsCounter, 280 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:36,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 1157 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:17:36,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-27 20:17:36,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 453. [2024-11-27 20:17:36,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 351 states have (on average 1.601139601139601) internal successors, (562), 351 states have internal predecessors, (562), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-27 20:17:36,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 760 transitions. [2024-11-27 20:17:36,328 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 760 transitions. Word has length 643 [2024-11-27 20:17:36,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:36,330 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 760 transitions. [2024-11-27 20:17:36,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:36,330 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 760 transitions. [2024-11-27 20:17:36,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-27 20:17:36,340 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:36,340 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:36,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:17:36,340 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:17:36,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:36,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1174916649, now seen corresponding path program 1 times [2024-11-27 20:17:36,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:36,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088889384] [2024-11-27 20:17:36,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:36,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:37,106 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 20:17:37,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:37,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088889384] [2024-11-27 20:17:37,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088889384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:37,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:37,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:17:37,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860063504] [2024-11-27 20:17:37,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:37,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:17:37,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:37,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:17:37,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:17:37,108 INFO L87 Difference]: Start difference. First operand 453 states and 760 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:37,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:37,194 INFO L93 Difference]: Finished difference Result 1164 states and 1947 transitions. [2024-11-27 20:17:37,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:17:37,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 643 [2024-11-27 20:17:37,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:37,205 INFO L225 Difference]: With dead ends: 1164 [2024-11-27 20:17:37,205 INFO L226 Difference]: Without dead ends: 714 [2024-11-27 20:17:37,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:17:37,208 INFO L435 NwaCegarLoop]: 815 mSDtfsCounter, 303 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:37,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 1352 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:17:37,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-11-27 20:17:37,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 711. [2024-11-27 20:17:37,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 545 states have (on average 1.5853211009174313) internal successors, (864), 546 states have internal predecessors, (864), 161 states have call successors, (161), 4 states have call predecessors, (161), 4 states have return successors, (161), 160 states have call predecessors, (161), 161 states have call successors, (161) [2024-11-27 20:17:37,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 1186 transitions. [2024-11-27 20:17:37,286 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 1186 transitions. Word has length 643 [2024-11-27 20:17:37,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:37,289 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 1186 transitions. [2024-11-27 20:17:37,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:37,290 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 1186 transitions. [2024-11-27 20:17:37,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-27 20:17:37,298 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:37,299 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:37,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:17:37,300 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:17:37,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:37,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1655996907, now seen corresponding path program 1 times [2024-11-27 20:17:37,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:37,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55571457] [2024-11-27 20:17:37,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:37,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:37,933 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 20:17:37,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:37,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55571457] [2024-11-27 20:17:37,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55571457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:37,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:37,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:17:37,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788109470] [2024-11-27 20:17:37,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:37,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:17:37,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:37,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:17:37,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:17:37,938 INFO L87 Difference]: Start difference. First operand 711 states and 1186 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:37,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:37,997 INFO L93 Difference]: Finished difference Result 1423 states and 2377 transitions. [2024-11-27 20:17:37,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:17:37,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 643 [2024-11-27 20:17:37,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:38,006 INFO L225 Difference]: With dead ends: 1423 [2024-11-27 20:17:38,008 INFO L226 Difference]: Without dead ends: 715 [2024-11-27 20:17:38,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:17:38,012 INFO L435 NwaCegarLoop]: 551 mSDtfsCounter, 0 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:38,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1095 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:17:38,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-27 20:17:38,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2024-11-27 20:17:38,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 549 states have (on average 1.5810564663023678) internal successors, (868), 550 states have internal predecessors, (868), 161 states have call successors, (161), 4 states have call predecessors, (161), 4 states have return successors, (161), 160 states have call predecessors, (161), 161 states have call successors, (161) [2024-11-27 20:17:38,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 1190 transitions. [2024-11-27 20:17:38,130 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 1190 transitions. Word has length 643 [2024-11-27 20:17:38,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:38,131 INFO L471 AbstractCegarLoop]: Abstraction has 715 states and 1190 transitions. [2024-11-27 20:17:38,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:38,132 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 1190 transitions. [2024-11-27 20:17:38,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-11-27 20:17:38,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:38,140 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:38,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:17:38,140 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:17:38,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:38,141 INFO L85 PathProgramCache]: Analyzing trace with hash 915972567, now seen corresponding path program 1 times [2024-11-27 20:17:38,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:38,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88955152] [2024-11-27 20:17:38,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:38,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:38,529 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 20:17:38,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:38,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88955152] [2024-11-27 20:17:38,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88955152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:38,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:38,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:17:38,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556378982] [2024-11-27 20:17:38,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:38,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:17:38,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:38,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:17:38,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:17:38,531 INFO L87 Difference]: Start difference. First operand 715 states and 1190 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:38,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:38,652 INFO L93 Difference]: Finished difference Result 2103 states and 3498 transitions. [2024-11-27 20:17:38,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:17:38,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 644 [2024-11-27 20:17:38,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:38,666 INFO L225 Difference]: With dead ends: 2103 [2024-11-27 20:17:38,666 INFO L226 Difference]: Without dead ends: 1391 [2024-11-27 20:17:38,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:17:38,670 INFO L435 NwaCegarLoop]: 915 mSDtfsCounter, 492 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:38,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 1456 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:17:38,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2024-11-27 20:17:38,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 925. [2024-11-27 20:17:38,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 759 states have (on average 1.6100131752305666) internal successors, (1222), 760 states have internal predecessors, (1222), 161 states have call successors, (161), 4 states have call predecessors, (161), 4 states have return successors, (161), 160 states have call predecessors, (161), 161 states have call successors, (161) [2024-11-27 20:17:38,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1544 transitions. [2024-11-27 20:17:38,766 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1544 transitions. Word has length 644 [2024-11-27 20:17:38,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:38,768 INFO L471 AbstractCegarLoop]: Abstraction has 925 states and 1544 transitions. [2024-11-27 20:17:38,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:38,768 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1544 transitions. [2024-11-27 20:17:38,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-11-27 20:17:38,776 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:38,777 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:38,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:17:38,777 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:17:38,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:38,778 INFO L85 PathProgramCache]: Analyzing trace with hash 246168281, now seen corresponding path program 1 times [2024-11-27 20:17:38,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:38,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477430341] [2024-11-27 20:17:38,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:38,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:39,398 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 20:17:39,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:39,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477430341] [2024-11-27 20:17:39,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477430341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:39,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:39,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:17:39,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380607030] [2024-11-27 20:17:39,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:39,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:17:39,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:39,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:17:39,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:17:39,402 INFO L87 Difference]: Start difference. First operand 925 states and 1544 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:39,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:39,527 INFO L93 Difference]: Finished difference Result 1850 states and 3086 transitions. [2024-11-27 20:17:39,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:17:39,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 644 [2024-11-27 20:17:39,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:39,535 INFO L225 Difference]: With dead ends: 1850 [2024-11-27 20:17:39,535 INFO L226 Difference]: Without dead ends: 928 [2024-11-27 20:17:39,538 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 20:17:39,538 INFO L435 NwaCegarLoop]: 668 mSDtfsCounter, 296 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:39,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1867 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:17:39,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2024-11-27 20:17:39,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 735. [2024-11-27 20:17:39,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 632 states have (on average 1.6281645569620253) internal successors, (1029), 632 states have internal predecessors, (1029), 99 states have call successors, (99), 3 states have call predecessors, (99), 3 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-27 20:17:39,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1227 transitions. [2024-11-27 20:17:39,580 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1227 transitions. Word has length 644 [2024-11-27 20:17:39,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:39,582 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 1227 transitions. [2024-11-27 20:17:39,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:39,583 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1227 transitions. [2024-11-27 20:17:39,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-27 20:17:39,589 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:39,589 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:39,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:17:39,590 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:17:39,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:39,590 INFO L85 PathProgramCache]: Analyzing trace with hash -852458469, now seen corresponding path program 1 times [2024-11-27 20:17:39,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:39,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198176740] [2024-11-27 20:17:39,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:39,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:40,864 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 20:17:40,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:40,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198176740] [2024-11-27 20:17:40,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198176740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:40,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:40,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:17:40,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871403263] [2024-11-27 20:17:40,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:40,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:17:40,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:40,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:17:40,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:17:40,866 INFO L87 Difference]: Start difference. First operand 735 states and 1227 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:41,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:41,050 INFO L93 Difference]: Finished difference Result 2207 states and 3691 transitions. [2024-11-27 20:17:41,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:17:41,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 645 [2024-11-27 20:17:41,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:41,062 INFO L225 Difference]: With dead ends: 2207 [2024-11-27 20:17:41,062 INFO L226 Difference]: Without dead ends: 1475 [2024-11-27 20:17:41,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:17:41,065 INFO L435 NwaCegarLoop]: 540 mSDtfsCounter, 346 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:41,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1605 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:17:41,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2024-11-27 20:17:41,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 1473. [2024-11-27 20:17:41,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 1268 states have (on average 1.6246056782334384) internal successors, (2060), 1268 states have internal predecessors, (2060), 198 states have call successors, (198), 6 states have call predecessors, (198), 6 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2024-11-27 20:17:41,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 2456 transitions. [2024-11-27 20:17:41,155 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 2456 transitions. Word has length 645 [2024-11-27 20:17:41,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:41,157 INFO L471 AbstractCegarLoop]: Abstraction has 1473 states and 2456 transitions. [2024-11-27 20:17:41,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:41,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 2456 transitions. [2024-11-27 20:17:41,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2024-11-27 20:17:41,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:41,164 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:41,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:17:41,165 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:17:41,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:41,166 INFO L85 PathProgramCache]: Analyzing trace with hash 394052007, now seen corresponding path program 1 times [2024-11-27 20:17:41,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:41,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894539714] [2024-11-27 20:17:41,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:41,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:41,950 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 20:17:41,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:41,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894539714] [2024-11-27 20:17:41,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894539714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:41,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:41,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:17:41,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176524600] [2024-11-27 20:17:41,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:41,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:17:41,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:41,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:17:41,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:17:41,956 INFO L87 Difference]: Start difference. First operand 1473 states and 2456 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:42,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:42,064 INFO L93 Difference]: Finished difference Result 3224 states and 5367 transitions. [2024-11-27 20:17:42,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:17:42,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 646 [2024-11-27 20:17:42,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:42,076 INFO L225 Difference]: With dead ends: 3224 [2024-11-27 20:17:42,077 INFO L226 Difference]: Without dead ends: 1754 [2024-11-27 20:17:42,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:17:42,082 INFO L435 NwaCegarLoop]: 901 mSDtfsCounter, 520 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:42,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 1260 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:17:42,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2024-11-27 20:17:42,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1473. [2024-11-27 20:17:42,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 1268 states have (on average 1.6230283911671923) internal successors, (2058), 1268 states have internal predecessors, (2058), 198 states have call successors, (198), 6 states have call predecessors, (198), 6 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2024-11-27 20:17:42,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 2454 transitions. [2024-11-27 20:17:42,187 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 2454 transitions. Word has length 646 [2024-11-27 20:17:42,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:42,188 INFO L471 AbstractCegarLoop]: Abstraction has 1473 states and 2454 transitions. [2024-11-27 20:17:42,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:42,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 2454 transitions. [2024-11-27 20:17:42,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2024-11-27 20:17:42,195 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:42,196 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:42,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:17:42,196 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:17:42,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:42,197 INFO L85 PathProgramCache]: Analyzing trace with hash -489778353, now seen corresponding path program 1 times [2024-11-27 20:17:42,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:42,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24870620] [2024-11-27 20:17:42,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:42,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:43,467 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 20:17:43,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:43,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24870620] [2024-11-27 20:17:43,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24870620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:43,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:43,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:17:43,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884696815] [2024-11-27 20:17:43,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:43,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:17:43,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:43,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:17:43,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:17:43,471 INFO L87 Difference]: Start difference. First operand 1473 states and 2454 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:45,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:45,276 INFO L93 Difference]: Finished difference Result 5139 states and 8573 transitions. [2024-11-27 20:17:45,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:17:45,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 647 [2024-11-27 20:17:45,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:45,298 INFO L225 Difference]: With dead ends: 5139 [2024-11-27 20:17:45,298 INFO L226 Difference]: Without dead ends: 3669 [2024-11-27 20:17:45,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:17:45,303 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 1013 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:45,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 1428 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 20:17:45,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3669 states. [2024-11-27 20:17:45,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3669 to 2619. [2024-11-27 20:17:45,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2619 states, 2344 states have (on average 1.628839590443686) internal successors, (3818), 2346 states have internal predecessors, (3818), 264 states have call successors, (264), 10 states have call predecessors, (264), 10 states have return successors, (264), 262 states have call predecessors, (264), 264 states have call successors, (264) [2024-11-27 20:17:45,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2619 states to 2619 states and 4346 transitions. [2024-11-27 20:17:45,494 INFO L78 Accepts]: Start accepts. Automaton has 2619 states and 4346 transitions. Word has length 647 [2024-11-27 20:17:45,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:45,495 INFO L471 AbstractCegarLoop]: Abstraction has 2619 states and 4346 transitions. [2024-11-27 20:17:45,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:45,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2619 states and 4346 transitions. [2024-11-27 20:17:45,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2024-11-27 20:17:45,504 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:45,504 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:45,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:17:45,504 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:17:45,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:45,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1909657099, now seen corresponding path program 1 times [2024-11-27 20:17:45,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:45,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003944133] [2024-11-27 20:17:45,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:45,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:46,228 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 20:17:46,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:46,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003944133] [2024-11-27 20:17:46,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003944133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:46,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:46,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:17:46,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430133778] [2024-11-27 20:17:46,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:46,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:17:46,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:46,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:17:46,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:17:46,231 INFO L87 Difference]: Start difference. First operand 2619 states and 4346 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:46,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:46,361 INFO L93 Difference]: Finished difference Result 5235 states and 8689 transitions. [2024-11-27 20:17:46,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:17:46,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 648 [2024-11-27 20:17:46,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:46,376 INFO L225 Difference]: With dead ends: 5235 [2024-11-27 20:17:46,376 INFO L226 Difference]: Without dead ends: 2619 [2024-11-27 20:17:46,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:17:46,382 INFO L435 NwaCegarLoop]: 540 mSDtfsCounter, 335 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:17:46,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 540 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:17:46,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2024-11-27 20:17:46,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 2619. [2024-11-27 20:17:46,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2619 states, 2344 states have (on average 1.6083617747440273) internal successors, (3770), 2346 states have internal predecessors, (3770), 264 states have call successors, (264), 10 states have call predecessors, (264), 10 states have return successors, (264), 262 states have call predecessors, (264), 264 states have call successors, (264) [2024-11-27 20:17:46,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2619 states to 2619 states and 4298 transitions. [2024-11-27 20:17:46,546 INFO L78 Accepts]: Start accepts. Automaton has 2619 states and 4298 transitions. Word has length 648 [2024-11-27 20:17:46,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:46,548 INFO L471 AbstractCegarLoop]: Abstraction has 2619 states and 4298 transitions. [2024-11-27 20:17:46,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:17:46,548 INFO L276 IsEmpty]: Start isEmpty. Operand 2619 states and 4298 transitions. [2024-11-27 20:17:46,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2024-11-27 20:17:46,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:46,556 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:46,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:17:46,557 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:17:46,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:46,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1408514732, now seen corresponding path program 1 times [2024-11-27 20:17:46,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:46,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750772509] [2024-11-27 20:17:46,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:46,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:57,014 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 20:17:57,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:57,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750772509] [2024-11-27 20:17:57,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750772509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:57,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:57,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 20:17:57,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947801284] [2024-11-27 20:17:57,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:57,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:17:57,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:57,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:17:57,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:17:57,018 INFO L87 Difference]: Start difference. First operand 2619 states and 4298 transitions. Second operand has 10 states, 10 states have (on average 15.7) internal successors, (157), 10 states have internal predecessors, (157), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:18:06,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:06,635 INFO L93 Difference]: Finished difference Result 7341 states and 11984 transitions. [2024-11-27 20:18:06,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:18:06,636 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.7) internal successors, (157), 10 states have internal predecessors, (157), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 649 [2024-11-27 20:18:06,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:06,658 INFO L225 Difference]: With dead ends: 7341 [2024-11-27 20:18:06,658 INFO L226 Difference]: Without dead ends: 4725 [2024-11-27 20:18:06,663 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:18:06,665 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 3907 mSDsluCounter, 2861 mSDsCounter, 0 mSdLazyCounter, 2599 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3907 SdHoareTripleChecker+Valid, 3457 SdHoareTripleChecker+Invalid, 2963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 2599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:06,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3907 Valid, 3457 Invalid, 2963 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [364 Valid, 2599 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-11-27 20:18:06,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4725 states. [2024-11-27 20:18:06,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4725 to 3061. [2024-11-27 20:18:06,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3061 states, 2749 states have (on average 1.6060385594761732) internal successors, (4415), 2753 states have internal predecessors, (4415), 298 states have call successors, (298), 13 states have call predecessors, (298), 13 states have return successors, (298), 294 states have call predecessors, (298), 298 states have call successors, (298) [2024-11-27 20:18:06,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3061 states to 3061 states and 5011 transitions. [2024-11-27 20:18:06,884 INFO L78 Accepts]: Start accepts. Automaton has 3061 states and 5011 transitions. Word has length 649 [2024-11-27 20:18:06,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:06,885 INFO L471 AbstractCegarLoop]: Abstraction has 3061 states and 5011 transitions. [2024-11-27 20:18:06,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.7) internal successors, (157), 10 states have internal predecessors, (157), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:18:06,889 INFO L276 IsEmpty]: Start isEmpty. Operand 3061 states and 5011 transitions. [2024-11-27 20:18:06,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2024-11-27 20:18:06,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:06,902 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:18:06,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 20:18:06,902 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:06,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:06,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1733743817, now seen corresponding path program 1 times [2024-11-27 20:18:06,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:06,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726049504] [2024-11-27 20:18:06,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:06,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:09,296 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 20:18:09,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:09,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726049504] [2024-11-27 20:18:09,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726049504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:09,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:09,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:18:09,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220480620] [2024-11-27 20:18:09,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:09,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:18:09,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:09,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:18:09,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:18:09,301 INFO L87 Difference]: Start difference. First operand 3061 states and 5011 transitions. Second operand has 8 states, 8 states have (on average 19.625) internal successors, (157), 8 states have internal predecessors, (157), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:18:12,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:12,574 INFO L93 Difference]: Finished difference Result 11133 states and 18167 transitions. [2024-11-27 20:18:12,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:18:12,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.625) internal successors, (157), 8 states have internal predecessors, (157), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 649 [2024-11-27 20:18:12,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:12,609 INFO L225 Difference]: With dead ends: 11133 [2024-11-27 20:18:12,609 INFO L226 Difference]: Without dead ends: 8075 [2024-11-27 20:18:12,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:18:12,620 INFO L435 NwaCegarLoop]: 880 mSDtfsCounter, 2050 mSDsluCounter, 2327 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2050 SdHoareTripleChecker+Valid, 3207 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:12,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2050 Valid, 3207 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-27 20:18:12,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8075 states. [2024-11-27 20:18:13,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8075 to 6064. [2024-11-27 20:18:13,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6064 states, 5413 states have (on average 1.5976353223720672) internal successors, (8648), 5423 states have internal predecessors, (8648), 622 states have call successors, (622), 28 states have call predecessors, (622), 28 states have return successors, (622), 612 states have call predecessors, (622), 622 states have call successors, (622) [2024-11-27 20:18:13,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6064 states to 6064 states and 9892 transitions. [2024-11-27 20:18:13,231 INFO L78 Accepts]: Start accepts. Automaton has 6064 states and 9892 transitions. Word has length 649 [2024-11-27 20:18:13,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:13,232 INFO L471 AbstractCegarLoop]: Abstraction has 6064 states and 9892 transitions. [2024-11-27 20:18:13,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.625) internal successors, (157), 8 states have internal predecessors, (157), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:18:13,233 INFO L276 IsEmpty]: Start isEmpty. Operand 6064 states and 9892 transitions. [2024-11-27 20:18:13,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2024-11-27 20:18:13,249 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:13,249 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:18:13,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 20:18:13,250 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:13,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:13,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1901140906, now seen corresponding path program 1 times [2024-11-27 20:18:13,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:13,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519975970] [2024-11-27 20:18:13,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:13,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:17,876 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 20:18:17,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:17,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519975970] [2024-11-27 20:18:17,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519975970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:17,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:17,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 20:18:17,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601776961] [2024-11-27 20:18:17,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:17,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:18:17,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:17,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:18:17,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:18:17,881 INFO L87 Difference]: Start difference. First operand 6064 states and 9892 transitions. Second operand has 10 states, 10 states have (on average 15.7) internal successors, (157), 10 states have internal predecessors, (157), 3 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 3 states have call predecessors, (99), 3 states have call successors, (99) [2024-11-27 20:18:27,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:27,843 INFO L93 Difference]: Finished difference Result 35881 states and 58082 transitions. [2024-11-27 20:18:27,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 20:18:27,844 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.7) internal successors, (157), 10 states have internal predecessors, (157), 3 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 3 states have call predecessors, (99), 3 states have call successors, (99) Word has length 649 [2024-11-27 20:18:27,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:27,941 INFO L225 Difference]: With dead ends: 35881 [2024-11-27 20:18:27,941 INFO L226 Difference]: Without dead ends: 29820 [2024-11-27 20:18:27,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=182, Invalid=370, Unknown=0, NotChecked=0, Total=552 [2024-11-27 20:18:27,956 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 4453 mSDsluCounter, 3449 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 1573 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4453 SdHoareTripleChecker+Valid, 4315 SdHoareTripleChecker+Invalid, 3839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1573 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:27,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4453 Valid, 4315 Invalid, 3839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1573 Valid, 2266 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-27 20:18:27,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29820 states. [2024-11-27 20:18:30,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29820 to 22407. [2024-11-27 20:18:30,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22407 states, 20098 states have (on average 1.5930938401831027) internal successors, (32018), 20161 states have internal predecessors, (32018), 2181 states have call successors, (2181), 127 states have call predecessors, (2181), 127 states have return successors, (2181), 2118 states have call predecessors, (2181), 2181 states have call successors, (2181) [2024-11-27 20:18:30,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22407 states to 22407 states and 36380 transitions. [2024-11-27 20:18:30,294 INFO L78 Accepts]: Start accepts. Automaton has 22407 states and 36380 transitions. Word has length 649 [2024-11-27 20:18:30,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:30,295 INFO L471 AbstractCegarLoop]: Abstraction has 22407 states and 36380 transitions. [2024-11-27 20:18:30,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.7) internal successors, (157), 10 states have internal predecessors, (157), 3 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 3 states have call predecessors, (99), 3 states have call successors, (99) [2024-11-27 20:18:30,296 INFO L276 IsEmpty]: Start isEmpty. Operand 22407 states and 36380 transitions. [2024-11-27 20:18:30,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2024-11-27 20:18:30,332 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:30,332 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:18:30,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 20:18:30,332 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:30,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:30,333 INFO L85 PathProgramCache]: Analyzing trace with hash 2086588502, now seen corresponding path program 1 times [2024-11-27 20:18:30,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:30,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847241126] [2024-11-27 20:18:30,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:30,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:31,431 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 189 proven. 105 refuted. 0 times theorem prover too weak. 19110 trivial. 0 not checked. [2024-11-27 20:18:31,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:31,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847241126] [2024-11-27 20:18:31,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847241126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:18:31,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821378746] [2024-11-27 20:18:31,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:31,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:18:31,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:18:31,436 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:18:31,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:18:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:31,902 INFO L256 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:18:31,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:18:32,514 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 8394 proven. 90 refuted. 0 times theorem prover too weak. 10920 trivial. 0 not checked. [2024-11-27 20:18:32,515 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:18:33,149 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 204 proven. 90 refuted. 0 times theorem prover too weak. 19110 trivial. 0 not checked. [2024-11-27 20:18:33,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821378746] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:18:33,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:18:33,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-27 20:18:33,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692934995] [2024-11-27 20:18:33,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:18:33,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:18:33,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:33,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:18:33,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:18:33,154 INFO L87 Difference]: Start difference. First operand 22407 states and 36380 transitions. Second operand has 8 states, 8 states have (on average 28.375) internal successors, (227), 8 states have internal predecessors, (227), 3 states have call successors, (164), 2 states have call predecessors, (164), 4 states have return successors, (166), 3 states have call predecessors, (166), 3 states have call successors, (166) [2024-11-27 20:18:35,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:35,373 INFO L93 Difference]: Finished difference Result 37867 states and 61165 transitions. [2024-11-27 20:18:35,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:18:35,374 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 28.375) internal successors, (227), 8 states have internal predecessors, (227), 3 states have call successors, (164), 2 states have call predecessors, (164), 4 states have return successors, (166), 3 states have call predecessors, (166), 3 states have call successors, (166) Word has length 650 [2024-11-27 20:18:35,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:35,442 INFO L225 Difference]: With dead ends: 37867 [2024-11-27 20:18:35,443 INFO L226 Difference]: Without dead ends: 15559 [2024-11-27 20:18:35,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1313 GetRequests, 1297 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:18:35,476 INFO L435 NwaCegarLoop]: 431 mSDtfsCounter, 852 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:35,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 1093 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:18:35,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15559 states. [2024-11-27 20:18:37,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15559 to 15305. [2024-11-27 20:18:37,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15305 states, 13124 states have (on average 1.549375190490704) internal successors, (20334), 13181 states have internal predecessors, (20334), 2047 states have call successors, (2047), 133 states have call predecessors, (2047), 133 states have return successors, (2047), 1990 states have call predecessors, (2047), 2047 states have call successors, (2047) [2024-11-27 20:18:37,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15305 states to 15305 states and 24428 transitions. [2024-11-27 20:18:37,119 INFO L78 Accepts]: Start accepts. Automaton has 15305 states and 24428 transitions. Word has length 650 [2024-11-27 20:18:37,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:37,120 INFO L471 AbstractCegarLoop]: Abstraction has 15305 states and 24428 transitions. [2024-11-27 20:18:37,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 28.375) internal successors, (227), 8 states have internal predecessors, (227), 3 states have call successors, (164), 2 states have call predecessors, (164), 4 states have return successors, (166), 3 states have call predecessors, (166), 3 states have call successors, (166) [2024-11-27 20:18:37,121 INFO L276 IsEmpty]: Start isEmpty. Operand 15305 states and 24428 transitions. [2024-11-27 20:18:37,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2024-11-27 20:18:37,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:37,139 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:18:37,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:18:37,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14491b98-d50a-418c-9a97-26ac44d77970/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:18:37,340 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:37,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:37,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1010445283, now seen corresponding path program 1 times [2024-11-27 20:18:37,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:37,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921533337] [2024-11-27 20:18:37,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:37,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:37,886 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 20:18:37,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:37,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921533337] [2024-11-27 20:18:37,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921533337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:37,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:37,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:18:37,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753697967] [2024-11-27 20:18:37,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:37,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:18:37,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:37,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:18:37,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:18:37,889 INFO L87 Difference]: Start difference. First operand 15305 states and 24428 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:18:40,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:40,151 INFO L93 Difference]: Finished difference Result 45717 states and 72986 transitions. [2024-11-27 20:18:40,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:18:40,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 650 [2024-11-27 20:18:40,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:40,246 INFO L225 Difference]: With dead ends: 45717 [2024-11-27 20:18:40,246 INFO L226 Difference]: Without dead ends: 30511 [2024-11-27 20:18:40,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:18:40,275 INFO L435 NwaCegarLoop]: 600 mSDtfsCounter, 313 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:40,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1124 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:18:40,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30511 states. [2024-11-27 20:18:43,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30511 to 30497. [2024-11-27 20:18:43,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30497 states, 26192 states have (on average 1.5446701282834454) internal successors, (40458), 26305 states have internal predecessors, (40458), 4041 states have call successors, (4041), 263 states have call predecessors, (4041), 263 states have return successors, (4041), 3928 states have call predecessors, (4041), 4041 states have call successors, (4041) [2024-11-27 20:18:43,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30497 states to 30497 states and 48540 transitions. [2024-11-27 20:18:43,435 INFO L78 Accepts]: Start accepts. Automaton has 30497 states and 48540 transitions. Word has length 650 [2024-11-27 20:18:43,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:43,436 INFO L471 AbstractCegarLoop]: Abstraction has 30497 states and 48540 transitions. [2024-11-27 20:18:43,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:18:43,437 INFO L276 IsEmpty]: Start isEmpty. Operand 30497 states and 48540 transitions. [2024-11-27 20:18:43,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2024-11-27 20:18:43,464 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:43,464 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:18:43,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 20:18:43,465 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:43,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:43,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1844933182, now seen corresponding path program 1 times [2024-11-27 20:18:43,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:43,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786468445] [2024-11-27 20:18:43,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:43,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:43,844 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 20:18:43,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:43,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786468445] [2024-11-27 20:18:43,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786468445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:43,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:43,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:18:43,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880932652] [2024-11-27 20:18:43,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:43,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:18:43,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:43,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:18:43,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:18:43,848 INFO L87 Difference]: Start difference. First operand 30497 states and 48540 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:18:46,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:46,026 INFO L93 Difference]: Finished difference Result 45727 states and 72867 transitions. [2024-11-27 20:18:46,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:18:46,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 651 [2024-11-27 20:18:46,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:46,120 INFO L225 Difference]: With dead ends: 45727 [2024-11-27 20:18:46,120 INFO L226 Difference]: Without dead ends: 30521 [2024-11-27 20:18:46,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:18:46,146 INFO L435 NwaCegarLoop]: 538 mSDtfsCounter, 0 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:46,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1071 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:18:46,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30521 states. [2024-11-27 20:18:49,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30521 to 30521. [2024-11-27 20:18:49,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30521 states, 26216 states have (on average 1.5441714983216357) internal successors, (40482), 26329 states have internal predecessors, (40482), 4041 states have call successors, (4041), 263 states have call predecessors, (4041), 263 states have return successors, (4041), 3928 states have call predecessors, (4041), 4041 states have call successors, (4041) [2024-11-27 20:18:49,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30521 states to 30521 states and 48564 transitions. [2024-11-27 20:18:49,508 INFO L78 Accepts]: Start accepts. Automaton has 30521 states and 48564 transitions. Word has length 651 [2024-11-27 20:18:49,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:49,509 INFO L471 AbstractCegarLoop]: Abstraction has 30521 states and 48564 transitions. [2024-11-27 20:18:49,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:18:49,510 INFO L276 IsEmpty]: Start isEmpty. Operand 30521 states and 48564 transitions. [2024-11-27 20:18:49,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2024-11-27 20:18:49,552 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:49,553 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:18:49,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 20:18:49,553 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:49,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:49,554 INFO L85 PathProgramCache]: Analyzing trace with hash -53922210, now seen corresponding path program 1 times [2024-11-27 20:18:49,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:49,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735614975] [2024-11-27 20:18:49,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:49,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:50,084 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 20:18:50,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:50,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735614975] [2024-11-27 20:18:50,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735614975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:50,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:50,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:18:50,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280976285] [2024-11-27 20:18:50,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:50,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:18:50,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:50,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:18:50,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:18:50,087 INFO L87 Difference]: Start difference. First operand 30521 states and 48564 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:18:54,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:54,539 INFO L93 Difference]: Finished difference Result 91365 states and 145394 transitions. [2024-11-27 20:18:54,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:18:54,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 651 [2024-11-27 20:18:54,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:54,700 INFO L225 Difference]: With dead ends: 91365 [2024-11-27 20:18:54,701 INFO L226 Difference]: Without dead ends: 60943 [2024-11-27 20:18:54,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:18:54,753 INFO L435 NwaCegarLoop]: 531 mSDtfsCounter, 313 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:54,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1056 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:18:54,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60943 states. [2024-11-27 20:19:01,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60943 to 60941. [2024-11-27 20:19:01,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60941 states, 52388 states have (on average 1.5392074520882646) internal successors, (80636), 52613 states have internal predecessors, (80636), 8029 states have call successors, (8029), 523 states have call predecessors, (8029), 523 states have return successors, (8029), 7804 states have call predecessors, (8029), 8029 states have call successors, (8029) [2024-11-27 20:19:01,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60941 states to 60941 states and 96694 transitions. [2024-11-27 20:19:01,236 INFO L78 Accepts]: Start accepts. Automaton has 60941 states and 96694 transitions. Word has length 651 [2024-11-27 20:19:01,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:01,236 INFO L471 AbstractCegarLoop]: Abstraction has 60941 states and 96694 transitions. [2024-11-27 20:19:01,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:19:01,237 INFO L276 IsEmpty]: Start isEmpty. Operand 60941 states and 96694 transitions. [2024-11-27 20:19:01,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 653 [2024-11-27 20:19:01,282 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:01,282 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:19:01,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 20:19:01,282 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:01,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:01,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1230543736, now seen corresponding path program 1 times [2024-11-27 20:19:01,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:01,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913534874] [2024-11-27 20:19:01,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:01,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:01,956 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2024-11-27 20:19:01,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:01,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913534874] [2024-11-27 20:19:01,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913534874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:01,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:01,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:19:01,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982383953] [2024-11-27 20:19:01,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:01,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:01,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:01,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:01,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:01,960 INFO L87 Difference]: Start difference. First operand 60941 states and 96694 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) [2024-11-27 20:19:06,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:06,199 INFO L93 Difference]: Finished difference Result 121797 states and 193264 transitions. [2024-11-27 20:19:06,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:06,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 1 states have call predecessors, (99), 1 states have call successors, (99) Word has length 652 [2024-11-27 20:19:06,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:06,503 INFO L225 Difference]: With dead ends: 121797 [2024-11-27 20:19:06,503 INFO L226 Difference]: Without dead ends: 60955 [2024-11-27 20:19:06,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:06,597 INFO L435 NwaCegarLoop]: 528 mSDtfsCounter, 308 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:06,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 1046 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:19:06,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60955 states.