./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-69.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_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/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_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-69.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/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_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/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 10a5b91e206caf05061e8827c7f121f08b981a096162c865ff7d0b016f9308fd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:11:44,182 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:11:44,314 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:11:44,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:11:44,328 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:11:44,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:11:44,357 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:11:44,358 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:11:44,358 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:11:44,358 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:11:44,359 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:11:44,359 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:11:44,359 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:11:44,360 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:11:44,360 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:11:44,360 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:11:44,360 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:11:44,360 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:11:44,361 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:11:44,361 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:11:44,361 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:11:44,361 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:11:44,361 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:11:44,361 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:11:44,361 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:11:44,361 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:11:44,361 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:11:44,362 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:11:44,362 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:11:44,362 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:11:44,362 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:11:44,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:11:44,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:11:44,363 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:11:44,363 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:11:44,363 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:11:44,363 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:11:44,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:11:44,364 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:11:44,364 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:11:44,364 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:11:44,364 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:11:44,364 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:11:44,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:11:44,365 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:11:44,365 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:11:44,365 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:11:44,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:11:44,365 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_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/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 -> 10a5b91e206caf05061e8827c7f121f08b981a096162c865ff7d0b016f9308fd [2024-11-28 02:11:44,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:11:44,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:11:44,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:11:44,760 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:11:44,760 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:11:44,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-69.i [2024-11-28 02:11:48,205 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/bin/uautomizer-verify-aQ6SnzHsRB/data/368ba12d1/ed42141fd1374f9e84664b3b56eac4ca/FLAG72f2d1b19 [2024-11-28 02:11:48,657 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:11:48,658 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-69.i [2024-11-28 02:11:48,688 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/bin/uautomizer-verify-aQ6SnzHsRB/data/368ba12d1/ed42141fd1374f9e84664b3b56eac4ca/FLAG72f2d1b19 [2024-11-28 02:11:48,714 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/bin/uautomizer-verify-aQ6SnzHsRB/data/368ba12d1/ed42141fd1374f9e84664b3b56eac4ca [2024-11-28 02:11:48,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:11:48,718 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:11:48,719 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:11:48,720 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:11:48,725 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:11:48,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:11:48" (1/1) ... [2024-11-28 02:11:48,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c16ed00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:48, skipping insertion in model container [2024-11-28 02:11:48,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:11:48" (1/1) ... [2024-11-28 02:11:48,782 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:11:49,007 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_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-69.i[916,929] [2024-11-28 02:11:49,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:11:49,228 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:11:49,241 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_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-69.i[916,929] [2024-11-28 02:11:49,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:11:49,379 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:11:49,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:49 WrapperNode [2024-11-28 02:11:49,380 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:11:49,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:11:49,382 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:11:49,382 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:11:49,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:49" (1/1) ... [2024-11-28 02:11:49,416 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:49" (1/1) ... [2024-11-28 02:11:49,526 INFO L138 Inliner]: procedures = 26, calls = 137, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 834 [2024-11-28 02:11:49,526 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:11:49,527 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:11:49,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:11:49,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:11:49,539 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:49" (1/1) ... [2024-11-28 02:11:49,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:49" (1/1) ... [2024-11-28 02:11:49,552 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:49" (1/1) ... [2024-11-28 02:11:49,661 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:11:49,667 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:49" (1/1) ... [2024-11-28 02:11:49,667 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:49" (1/1) ... [2024-11-28 02:11:49,725 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:49" (1/1) ... [2024-11-28 02:11:49,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:49" (1/1) ... [2024-11-28 02:11:49,747 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:49" (1/1) ... [2024-11-28 02:11:49,763 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:49" (1/1) ... [2024-11-28 02:11:49,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:49" (1/1) ... [2024-11-28 02:11:49,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:11:49,799 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:11:49,800 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:11:49,800 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:11:49,802 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:49" (1/1) ... [2024-11-28 02:11:49,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:11:49,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:49,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:11:49,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:11:49,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:11:49,884 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:11:49,884 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:11:49,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:11:49,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:11:49,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:11:50,134 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:11:50,137 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:11:52,361 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-28 02:11:52,361 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:11:52,398 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:11:52,398 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:11:52,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:11:52 BoogieIcfgContainer [2024-11-28 02:11:52,399 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:11:52,405 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:11:52,406 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:11:52,412 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:11:52,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:11:48" (1/3) ... [2024-11-28 02:11:52,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ddef822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:11:52, skipping insertion in model container [2024-11-28 02:11:52,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:11:49" (2/3) ... [2024-11-28 02:11:52,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ddef822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:11:52, skipping insertion in model container [2024-11-28 02:11:52,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:11:52" (3/3) ... [2024-11-28 02:11:52,416 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-69.i [2024-11-28 02:11:52,438 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:11:52,441 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-69.i that has 2 procedures, 350 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:11:52,554 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:11:52,572 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;@67fd4ced, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:11:52,572 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:11:52,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 350 states, 223 states have (on average 1.5695067264573992) internal successors, (350), 224 states have internal predecessors, (350), 124 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-28 02:11:52,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2024-11-28 02:11:52,641 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:52,642 INFO L218 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:52,645 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:52,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:52,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1703380531, now seen corresponding path program 1 times [2024-11-28 02:11:52,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:52,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813346942] [2024-11-28 02:11:52,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:52,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:54,015 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 30258 trivial. 0 not checked. [2024-11-28 02:11:54,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:54,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813346942] [2024-11-28 02:11:54,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813346942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:11:54,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985165046] [2024-11-28 02:11:54,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:54,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:11:54,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:54,025 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:11:54,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:11:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:54,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 1748 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:11:54,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:54,951 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 30258 trivial. 0 not checked. [2024-11-28 02:11:54,952 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:11:54,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985165046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:54,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:11:54,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:11:54,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130378055] [2024-11-28 02:11:54,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:54,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:11:54,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:54,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:11:54,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:11:54,994 INFO L87 Difference]: Start difference. First operand has 350 states, 223 states have (on average 1.5695067264573992) internal successors, (350), 224 states have internal predecessors, (350), 124 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) Second operand has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (124), 2 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 2 states have call successors, (124) [2024-11-28 02:11:55,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:55,094 INFO L93 Difference]: Finished difference Result 693 states and 1314 transitions. [2024-11-28 02:11:55,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:11:55,100 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (124), 2 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 2 states have call successors, (124) Word has length 775 [2024-11-28 02:11:55,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:55,121 INFO L225 Difference]: With dead ends: 693 [2024-11-28 02:11:55,121 INFO L226 Difference]: Without dead ends: 346 [2024-11-28 02:11:55,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 776 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:11:55,133 INFO L435 NwaCegarLoop]: 589 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, 589 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 [2024-11-28 02:11:55,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:11:55,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-28 02:11:55,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2024-11-28 02:11:55,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 220 states have (on average 1.55) internal successors, (341), 220 states have internal predecessors, (341), 124 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-28 02:11:55,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 589 transitions. [2024-11-28 02:11:55,263 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 589 transitions. Word has length 775 [2024-11-28 02:11:55,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:55,264 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 589 transitions. [2024-11-28 02:11:55,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (124), 2 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 2 states have call successors, (124) [2024-11-28 02:11:55,265 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 589 transitions. [2024-11-28 02:11:55,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2024-11-28 02:11:55,306 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:55,307 INFO L218 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:55,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:11:55,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fa2fe7-1615-4068-b9f4-2e6f0c86e34e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 02:11:55,509 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:55,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:55,510 INFO L85 PathProgramCache]: Analyzing trace with hash -236689015, now seen corresponding path program 1 times [2024-11-28 02:11:55,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:55,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765737695] [2024-11-28 02:11:55,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:55,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:56,973 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-28 02:11:56,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:56,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765737695] [2024-11-28 02:11:56,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765737695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:56,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:56,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:11:56,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293047848] [2024-11-28 02:11:56,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:56,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:11:56,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:56,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:11:56,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:11:56,979 INFO L87 Difference]: Start difference. First operand 346 states and 589 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, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:11:57,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:57,212 INFO L93 Difference]: Finished difference Result 879 states and 1507 transitions. [2024-11-28 02:11:57,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:11:57,216 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, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 775 [2024-11-28 02:11:57,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:57,233 INFO L225 Difference]: With dead ends: 879 [2024-11-28 02:11:57,233 INFO L226 Difference]: Without dead ends: 536 [2024-11-28 02:11:57,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:11:57,239 INFO L435 NwaCegarLoop]: 701 mSDtfsCounter, 321 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:57,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 1264 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:11:57,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-28 02:11:57,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 533. [2024-11-28 02:11:57,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 377 states have (on average 1.6047745358090186) internal successors, (605), 378 states have internal predecessors, (605), 153 states have call successors, (153), 2 states have call predecessors, (153), 2 states have return successors, (153), 152 states have call predecessors, (153), 153 states have call successors, (153) [2024-11-28 02:11:57,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 911 transitions. [2024-11-28 02:11:57,429 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 911 transitions. Word has length 775 [2024-11-28 02:11:57,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:57,436 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 911 transitions. [2024-11-28 02:11:57,437 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, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:11:57,437 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 911 transitions. [2024-11-28 02:11:57,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2024-11-28 02:11:57,482 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:57,483 INFO L218 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:57,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:11:57,484 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:57,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:57,485 INFO L85 PathProgramCache]: Analyzing trace with hash -2088754359, now seen corresponding path program 1 times [2024-11-28 02:11:57,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:57,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099510037] [2024-11-28 02:11:57,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:57,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:58,414 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-28 02:11:58,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:58,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099510037] [2024-11-28 02:11:58,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099510037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:58,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:58,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:11:58,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198779163] [2024-11-28 02:11:58,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:58,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:11:58,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:58,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:11:58,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:11:58,422 INFO L87 Difference]: Start difference. First operand 533 states and 911 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, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:11:58,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:58,595 INFO L93 Difference]: Finished difference Result 1583 states and 2709 transitions. [2024-11-28 02:11:58,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:11:58,596 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, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 775 [2024-11-28 02:11:58,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:58,611 INFO L225 Difference]: With dead ends: 1583 [2024-11-28 02:11:58,615 INFO L226 Difference]: Without dead ends: 1053 [2024-11-28 02:11:58,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:11:58,619 INFO L435 NwaCegarLoop]: 805 mSDtfsCounter, 369 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:58,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 1372 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:11:58,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2024-11-28 02:11:58,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 1050. [2024-11-28 02:11:58,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 739 states have (on average 1.5953991880920162) internal successors, (1179), 741 states have internal predecessors, (1179), 306 states have call successors, (306), 4 states have call predecessors, (306), 4 states have return successors, (306), 304 states have call predecessors, (306), 306 states have call successors, (306) [2024-11-28 02:11:58,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1791 transitions. [2024-11-28 02:11:58,938 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1791 transitions. Word has length 775 [2024-11-28 02:11:58,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:58,944 INFO L471 AbstractCegarLoop]: Abstraction has 1050 states and 1791 transitions. [2024-11-28 02:11:58,944 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, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:11:58,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1791 transitions. [2024-11-28 02:11:58,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2024-11-28 02:11:58,959 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:58,959 INFO L218 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:58,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:11:58,960 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:58,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:58,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1285249721, now seen corresponding path program 1 times [2024-11-28 02:11:58,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:58,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584964108] [2024-11-28 02:11:58,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:58,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:59,779 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-28 02:11:59,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:59,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584964108] [2024-11-28 02:11:59,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584964108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:59,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:59,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:11:59,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414881013] [2024-11-28 02:11:59,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:59,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:11:59,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:59,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:11:59,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:11:59,790 INFO L87 Difference]: Start difference. First operand 1050 states and 1791 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, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:12:00,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:12:00,038 INFO L93 Difference]: Finished difference Result 2110 states and 3607 transitions. [2024-11-28 02:12:00,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:12:00,040 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, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 775 [2024-11-28 02:12:00,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:12:00,061 INFO L225 Difference]: With dead ends: 2110 [2024-11-28 02:12:00,062 INFO L226 Difference]: Without dead ends: 1580 [2024-11-28 02:12:00,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:12:00,068 INFO L435 NwaCegarLoop]: 1158 mSDtfsCounter, 580 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:12:00,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 1727 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:12:00,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2024-11-28 02:12:00,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1577. [2024-11-28 02:12:00,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1111 states have (on average 1.5976597659765976) internal successors, (1775), 1114 states have internal predecessors, (1775), 459 states have call successors, (459), 6 states have call predecessors, (459), 6 states have return successors, (459), 456 states have call predecessors, (459), 459 states have call successors, (459) [2024-11-28 02:12:00,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 2693 transitions. [2024-11-28 02:12:00,412 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 2693 transitions. Word has length 775 [2024-11-28 02:12:00,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:12:00,414 INFO L471 AbstractCegarLoop]: Abstraction has 1577 states and 2693 transitions. [2024-11-28 02:12:00,415 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, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:12:00,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 2693 transitions. [2024-11-28 02:12:00,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 778 [2024-11-28 02:12:00,427 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:12:00,427 INFO L218 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:12:00,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:12:00,428 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:12:00,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:12:00,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1256205793, now seen corresponding path program 1 times [2024-11-28 02:12:00,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:12:00,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658888169] [2024-11-28 02:12:00,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:12:00,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:12:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:12:01,033 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-28 02:12:01,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:12:01,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658888169] [2024-11-28 02:12:01,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658888169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:12:01,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:12:01,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:12:01,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863248615] [2024-11-28 02:12:01,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:12:01,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:12:01,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:12:01,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:12:01,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:12:01,038 INFO L87 Difference]: Start difference. First operand 1577 states and 2693 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, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:12:01,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:12:01,249 INFO L93 Difference]: Finished difference Result 3168 states and 5396 transitions. [2024-11-28 02:12:01,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:12:01,250 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, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 777 [2024-11-28 02:12:01,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:12:01,268 INFO L225 Difference]: With dead ends: 3168 [2024-11-28 02:12:01,269 INFO L226 Difference]: Without dead ends: 1594 [2024-11-28 02:12:01,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:12:01,278 INFO L435 NwaCegarLoop]: 780 mSDtfsCounter, 328 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:12:01,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 1340 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:12:01,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1594 states. [2024-11-28 02:12:01,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1594 to 1316. [2024-11-28 02:12:01,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 937 states have (on average 1.5933831376734258) internal successors, (1493), 937 states have internal predecessors, (1493), 372 states have call successors, (372), 6 states have call predecessors, (372), 6 states have return successors, (372), 372 states have call predecessors, (372), 372 states have call successors, (372) [2024-11-28 02:12:01,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 2237 transitions. [2024-11-28 02:12:01,547 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 2237 transitions. Word has length 777 [2024-11-28 02:12:01,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:12:01,551 INFO L471 AbstractCegarLoop]: Abstraction has 1316 states and 2237 transitions. [2024-11-28 02:12:01,552 INFO L472 AbstractCegarLoop]: INTERPOLANT 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, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:12:01,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 2237 transitions. [2024-11-28 02:12:01,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 779 [2024-11-28 02:12:01,563 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:12:01,563 INFO L218 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:12:01,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:12:01,564 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:12:01,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:12:01,565 INFO L85 PathProgramCache]: Analyzing trace with hash -2132239413, now seen corresponding path program 1 times [2024-11-28 02:12:01,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:12:01,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117301361] [2024-11-28 02:12:01,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:12:01,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:12:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:12:02,387 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-28 02:12:02,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:12:02,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117301361] [2024-11-28 02:12:02,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117301361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:12:02,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:12:02,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:12:02,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917205517] [2024-11-28 02:12:02,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:12:02,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:12:02,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:12:02,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:12:02,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:12:02,399 INFO L87 Difference]: Start difference. First operand 1316 states and 2237 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:12:03,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:12:03,823 INFO L93 Difference]: Finished difference Result 5542 states and 9401 transitions. [2024-11-28 02:12:03,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:12:03,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 778 [2024-11-28 02:12:03,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:12:03,866 INFO L225 Difference]: With dead ends: 5542 [2024-11-28 02:12:03,866 INFO L226 Difference]: Without dead ends: 4229 [2024-11-28 02:12:03,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:12:03,876 INFO L435 NwaCegarLoop]: 990 mSDtfsCounter, 1339 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 2779 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:12:03,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1339 Valid, 2779 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:12:03,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4229 states. [2024-11-28 02:12:04,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4229 to 4217. [2024-11-28 02:12:04,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4217 states, 2908 states have (on average 1.5557083906464924) internal successors, (4524), 2914 states have internal predecessors, (4524), 1284 states have call successors, (1284), 24 states have call predecessors, (1284), 24 states have return successors, (1284), 1278 states have call predecessors, (1284), 1284 states have call successors, (1284) [2024-11-28 02:12:04,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4217 states to 4217 states and 7092 transitions. [2024-11-28 02:12:04,572 INFO L78 Accepts]: Start accepts. Automaton has 4217 states and 7092 transitions. Word has length 778 [2024-11-28 02:12:04,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:12:04,574 INFO L471 AbstractCegarLoop]: Abstraction has 4217 states and 7092 transitions. [2024-11-28 02:12:04,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:12:04,575 INFO L276 IsEmpty]: Start isEmpty. Operand 4217 states and 7092 transitions. [2024-11-28 02:12:04,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-28 02:12:04,588 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:12:04,589 INFO L218 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:12:04,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:12:04,589 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:12:04,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:12:04,591 INFO L85 PathProgramCache]: Analyzing trace with hash -2025215113, now seen corresponding path program 1 times [2024-11-28 02:12:04,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:12:04,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916632167] [2024-11-28 02:12:04,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:12:04,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:12:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:12:05,137 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-28 02:12:05,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:12:05,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916632167] [2024-11-28 02:12:05,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916632167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:12:05,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:12:05,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:12:05,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112856794] [2024-11-28 02:12:05,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:12:05,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:12:05,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:12:05,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:12:05,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:12:05,142 INFO L87 Difference]: Start difference. First operand 4217 states and 7092 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:12:05,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:12:05,857 INFO L93 Difference]: Finished difference Result 11529 states and 19342 transitions. [2024-11-28 02:12:05,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:12:05,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 779 [2024-11-28 02:12:05,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:12:05,925 INFO L225 Difference]: With dead ends: 11529 [2024-11-28 02:12:05,925 INFO L226 Difference]: Without dead ends: 7315 [2024-11-28 02:12:05,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:12:05,948 INFO L435 NwaCegarLoop]: 813 mSDtfsCounter, 349 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:12:05,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1390 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:12:05,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7315 states. [2024-11-28 02:12:07,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7315 to 7301. [2024-11-28 02:12:07,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7301 states, 4912 states have (on average 1.5342019543973942) internal successors, (7536), 4930 states have internal predecessors, (7536), 2340 states have call successors, (2340), 48 states have call predecessors, (2340), 48 states have return successors, (2340), 2322 states have call predecessors, (2340), 2340 states have call successors, (2340) [2024-11-28 02:12:07,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 12216 transitions. [2024-11-28 02:12:07,273 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 12216 transitions. Word has length 779 [2024-11-28 02:12:07,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:12:07,275 INFO L471 AbstractCegarLoop]: Abstraction has 7301 states and 12216 transitions. [2024-11-28 02:12:07,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:12:07,276 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 12216 transitions. [2024-11-28 02:12:07,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-28 02:12:07,302 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:12:07,303 INFO L218 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:12:07,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:12:07,303 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:12:07,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:12:07,304 INFO L85 PathProgramCache]: Analyzing trace with hash 25768885, now seen corresponding path program 1 times [2024-11-28 02:12:07,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:12:07,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58756213] [2024-11-28 02:12:07,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:12:07,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:12:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:12:07,826 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-28 02:12:07,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:12:07,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58756213] [2024-11-28 02:12:07,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58756213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:12:07,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:12:07,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:12:07,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742434897] [2024-11-28 02:12:07,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:12:07,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:12:07,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:12:07,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:12:07,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:12:07,830 INFO L87 Difference]: Start difference. First operand 7301 states and 12216 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:12:09,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:12:09,129 INFO L93 Difference]: Finished difference Result 21897 states and 36642 transitions. [2024-11-28 02:12:09,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:12:09,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 779 [2024-11-28 02:12:09,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:12:09,275 INFO L225 Difference]: With dead ends: 21897 [2024-11-28 02:12:09,275 INFO L226 Difference]: Without dead ends: 14599 [2024-11-28 02:12:09,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:12:09,312 INFO L435 NwaCegarLoop]: 587 mSDtfsCounter, 584 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:12:09,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1168 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:12:09,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14599 states. [2024-11-28 02:12:11,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14599 to 14597. [2024-11-28 02:12:11,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14597 states, 9820 states have (on average 1.5295315682281059) internal successors, (15020), 9856 states have internal predecessors, (15020), 4680 states have call successors, (4680), 96 states have call predecessors, (4680), 96 states have return successors, (4680), 4644 states have call predecessors, (4680), 4680 states have call successors, (4680) [2024-11-28 02:12:11,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14597 states to 14597 states and 24380 transitions. [2024-11-28 02:12:11,924 INFO L78 Accepts]: Start accepts. Automaton has 14597 states and 24380 transitions. Word has length 779 [2024-11-28 02:12:11,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:12:11,926 INFO L471 AbstractCegarLoop]: Abstraction has 14597 states and 24380 transitions. [2024-11-28 02:12:11,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:12:11,927 INFO L276 IsEmpty]: Start isEmpty. Operand 14597 states and 24380 transitions. [2024-11-28 02:12:11,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-28 02:12:11,947 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:12:11,947 INFO L218 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:12:11,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:12:11,948 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:12:11,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:12:11,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1663174857, now seen corresponding path program 1 times [2024-11-28 02:12:11,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:12:11,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753989003] [2024-11-28 02:12:11,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:12:11,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:12:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:12:13,723 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-28 02:12:13,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:12:13,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753989003] [2024-11-28 02:12:13,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753989003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:12:13,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:12:13,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:12:13,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020660087] [2024-11-28 02:12:13,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:12:13,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:12:13,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:12:13,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:12:13,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:12:13,731 INFO L87 Difference]: Start difference. First operand 14597 states and 24380 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:12:15,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:12:15,957 INFO L93 Difference]: Finished difference Result 38377 states and 64134 transitions. [2024-11-28 02:12:15,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:12:15,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 779 [2024-11-28 02:12:15,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:12:16,159 INFO L225 Difference]: With dead ends: 38377 [2024-11-28 02:12:16,161 INFO L226 Difference]: Without dead ends: 28619 [2024-11-28 02:12:16,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:12:16,220 INFO L435 NwaCegarLoop]: 609 mSDtfsCounter, 545 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:12:16,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1160 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:12:16,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28619 states. [2024-11-28 02:12:19,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28619 to 14613. [2024-11-28 02:12:19,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14613 states, 9836 states have (on average 1.5294835298901992) internal successors, (15044), 9872 states have internal predecessors, (15044), 4680 states have call successors, (4680), 96 states have call predecessors, (4680), 96 states have return successors, (4680), 4644 states have call predecessors, (4680), 4680 states have call successors, (4680) [2024-11-28 02:12:19,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14613 states to 14613 states and 24404 transitions. [2024-11-28 02:12:20,029 INFO L78 Accepts]: Start accepts. Automaton has 14613 states and 24404 transitions. Word has length 779 [2024-11-28 02:12:20,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:12:20,031 INFO L471 AbstractCegarLoop]: Abstraction has 14613 states and 24404 transitions. [2024-11-28 02:12:20,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:12:20,031 INFO L276 IsEmpty]: Start isEmpty. Operand 14613 states and 24404 transitions. [2024-11-28 02:12:20,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-28 02:12:20,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:12:20,046 INFO L218 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:12:20,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:12:20,046 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:12:20,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:12:20,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1691234930, now seen corresponding path program 1 times [2024-11-28 02:12:20,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:12:20,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514884544] [2024-11-28 02:12:20,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:12:20,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:12:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:12:20,585 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-28 02:12:20,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:12:20,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514884544] [2024-11-28 02:12:20,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514884544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:12:20,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:12:20,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:12:20,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636274970] [2024-11-28 02:12:20,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:12:20,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:12:20,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:12:20,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:12:20,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:12:20,589 INFO L87 Difference]: Start difference. First operand 14613 states and 24404 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:12:22,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:12:22,662 INFO L93 Difference]: Finished difference Result 39009 states and 65226 transitions. [2024-11-28 02:12:22,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:12:22,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 779 [2024-11-28 02:12:22,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:12:22,829 INFO L225 Difference]: With dead ends: 39009 [2024-11-28 02:12:22,830 INFO L226 Difference]: Without dead ends: 24399 [2024-11-28 02:12:22,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:12:22,904 INFO L435 NwaCegarLoop]: 573 mSDtfsCounter, 346 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:12:22,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1634 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:12:22,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24399 states. [2024-11-28 02:12:26,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24399 to 24349. [2024-11-28 02:12:26,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24349 states, 17892 states have (on average 1.5774647887323943) internal successors, (28224), 17976 states have internal predecessors, (28224), 6264 states have call successors, (6264), 192 states have call predecessors, (6264), 192 states have return successors, (6264), 6180 states have call predecessors, (6264), 6264 states have call successors, (6264) [2024-11-28 02:12:26,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24349 states to 24349 states and 40752 transitions. [2024-11-28 02:12:26,460 INFO L78 Accepts]: Start accepts. Automaton has 24349 states and 40752 transitions. Word has length 779 [2024-11-28 02:12:26,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:12:26,461 INFO L471 AbstractCegarLoop]: Abstraction has 24349 states and 40752 transitions. [2024-11-28 02:12:26,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:12:26,462 INFO L276 IsEmpty]: Start isEmpty. Operand 24349 states and 40752 transitions. [2024-11-28 02:12:26,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-28 02:12:26,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:12:26,489 INFO L218 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:12:26,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:12:26,490 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:12:26,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:12:26,491 INFO L85 PathProgramCache]: Analyzing trace with hash -727249548, now seen corresponding path program 1 times [2024-11-28 02:12:26,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:12:26,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530083016] [2024-11-28 02:12:26,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:12:26,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:12:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:12:28,181 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-28 02:12:28,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:12:28,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530083016] [2024-11-28 02:12:28,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530083016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:12:28,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:12:28,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:12:28,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752351253] [2024-11-28 02:12:28,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:12:28,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:12:28,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:12:28,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:12:28,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:12:28,185 INFO L87 Difference]: Start difference. First operand 24349 states and 40752 transitions. Second operand has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:12:37,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:12:37,015 INFO L93 Difference]: Finished difference Result 99501 states and 166444 transitions. [2024-11-28 02:12:37,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:12:37,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) Word has length 779 [2024-11-28 02:12:37,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:12:37,466 INFO L225 Difference]: With dead ends: 99501 [2024-11-28 02:12:37,466 INFO L226 Difference]: Without dead ends: 75155 [2024-11-28 02:12:37,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:12:37,784 INFO L435 NwaCegarLoop]: 755 mSDtfsCounter, 1505 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:12:37,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 2256 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 02:12:37,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75155 states. [2024-11-28 02:12:42,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75155 to 68885. [2024-11-28 02:12:42,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68885 states, 52876 states have (on average 1.5960360087752476) internal successors, (84392), 53152 states have internal predecessors, (84392), 15384 states have call successors, (15384), 624 states have call predecessors, (15384), 624 states have return successors, (15384), 15108 states have call predecessors, (15384), 15384 states have call successors, (15384) [2024-11-28 02:12:43,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68885 states to 68885 states and 115160 transitions. [2024-11-28 02:12:43,544 INFO L78 Accepts]: Start accepts. Automaton has 68885 states and 115160 transitions. Word has length 779 [2024-11-28 02:12:43,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:12:43,546 INFO L471 AbstractCegarLoop]: Abstraction has 68885 states and 115160 transitions. [2024-11-28 02:12:43,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124) [2024-11-28 02:12:43,547 INFO L276 IsEmpty]: Start isEmpty. Operand 68885 states and 115160 transitions. [2024-11-28 02:12:43,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2024-11-28 02:12:43,654 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:12:43,655 INFO L218 NwaCegarLoop]: trace histogram [124, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:12:43,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:12:43,655 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:12:43,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:12:43,656 INFO L85 PathProgramCache]: Analyzing trace with hash -25649674, now seen corresponding path program 1 times [2024-11-28 02:12:43,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:12:43,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883274604] [2024-11-28 02:12:43,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:12:43,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:12:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:12:51,811 INFO L134 CoverageAnalysis]: Checked inductivity of 30504 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2024-11-28 02:12:51,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:12:51,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883274604] [2024-11-28 02:12:51,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883274604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:12:51,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:12:51,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:12:51,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715861137] [2024-11-28 02:12:51,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:12:51,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:12:51,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:12:51,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:12:51,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:12:51,816 INFO L87 Difference]: Start difference. First operand 68885 states and 115160 transitions. Second operand has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 1 states have call successors, (124), 1 states have call predecessors, (124), 1 states have return successors, (124), 1 states have call predecessors, (124), 1 states have call successors, (124)