./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-23.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_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/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_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-23.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/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_3138140c-feef-4d80-b050-b4b8f4ec9b1d/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 ed0b1861101548b730fb063fdf9036ca893ba003f1a5026e39b1db8e4f4805e6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:23:14,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:23:14,367 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:23:14,373 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:23:14,374 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:23:14,400 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:23:14,401 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:23:14,401 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:23:14,402 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:23:14,402 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:23:14,402 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:23:14,402 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:23:14,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:23:14,403 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:23:14,403 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:23:14,403 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:23:14,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:23:14,404 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:23:14,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:23:14,404 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:23:14,404 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:23:14,404 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:23:14,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:23:14,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:23:14,405 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:23:14,405 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:23:14,405 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:23:14,405 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:23:14,406 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:23:14,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:23:14,406 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:23:14,406 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:23:14,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:23:14,406 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:23:14,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:23:14,406 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:23:14,406 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:23:14,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:23:14,407 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:23:14,407 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:23:14,407 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:23:14,407 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:23:14,407 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:23:14,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:23:14,407 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:23:14,407 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:23:14,407 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:23:14,408 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:23:14,408 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_3138140c-feef-4d80-b050-b4b8f4ec9b1d/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 -> ed0b1861101548b730fb063fdf9036ca893ba003f1a5026e39b1db8e4f4805e6 [2024-11-28 05:23:14,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:23:14,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:23:14,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:23:14,790 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:23:14,791 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:23:14,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-23.i [2024-11-28 05:23:18,037 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/data/43c6a4d66/159416bf07a8471d8b413864f1a4eb9d/FLAGac3be8761 [2024-11-28 05:23:18,511 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:23:18,512 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-23.i [2024-11-28 05:23:18,539 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/data/43c6a4d66/159416bf07a8471d8b413864f1a4eb9d/FLAGac3be8761 [2024-11-28 05:23:18,556 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/data/43c6a4d66/159416bf07a8471d8b413864f1a4eb9d [2024-11-28 05:23:18,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:23:18,560 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:23:18,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:23:18,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:23:18,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:23:18,569 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:23:18" (1/1) ... [2024-11-28 05:23:18,570 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b22dda5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:18, skipping insertion in model container [2024-11-28 05:23:18,570 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:23:18" (1/1) ... [2024-11-28 05:23:18,650 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:23:18,855 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_3138140c-feef-4d80-b050-b4b8f4ec9b1d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-23.i[916,929] [2024-11-28 05:23:19,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:23:19,174 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:23:19,187 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_3138140c-feef-4d80-b050-b4b8f4ec9b1d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-23.i[916,929] [2024-11-28 05:23:19,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:23:19,450 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:23:19,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:19 WrapperNode [2024-11-28 05:23:19,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:23:19,453 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:23:19,453 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:23:19,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:23:19,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:19" (1/1) ... [2024-11-28 05:23:19,515 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:19" (1/1) ... [2024-11-28 05:23:19,659 INFO L138 Inliner]: procedures = 26, calls = 90, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 759 [2024-11-28 05:23:19,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:23:19,661 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:23:19,661 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:23:19,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:23:19,674 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:19" (1/1) ... [2024-11-28 05:23:19,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:19" (1/1) ... [2024-11-28 05:23:19,692 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:19" (1/1) ... [2024-11-28 05:23:19,804 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 05:23:19,804 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:19" (1/1) ... [2024-11-28 05:23:19,804 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:19" (1/1) ... [2024-11-28 05:23:19,842 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:19" (1/1) ... [2024-11-28 05:23:19,850 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:19" (1/1) ... [2024-11-28 05:23:19,857 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:19" (1/1) ... [2024-11-28 05:23:19,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:19" (1/1) ... [2024-11-28 05:23:19,873 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:19" (1/1) ... [2024-11-28 05:23:19,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:23:19,896 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:23:19,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:23:19,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:23:19,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:19" (1/1) ... [2024-11-28 05:23:19,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:23:19,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:23:19,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:23:19,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:23:19,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:23:19,991 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 05:23:19,991 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 05:23:19,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:23:19,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:23:19,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:23:20,227 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:23:20,230 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:23:22,472 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-28 05:23:22,472 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:23:22,507 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:23:22,508 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:23:22,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:23:22 BoogieIcfgContainer [2024-11-28 05:23:22,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:23:22,515 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:23:22,515 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:23:22,525 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:23:22,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:23:18" (1/3) ... [2024-11-28 05:23:22,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385c7bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:23:22, skipping insertion in model container [2024-11-28 05:23:22,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:19" (2/3) ... [2024-11-28 05:23:22,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385c7bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:23:22, skipping insertion in model container [2024-11-28 05:23:22,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:23:22" (3/3) ... [2024-11-28 05:23:22,529 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-23.i [2024-11-28 05:23:22,550 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:23:22,555 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount500_file-23.i that has 2 procedures, 304 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 05:23:22,672 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:23:22,686 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;@7c3073c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:23:22,687 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:23:22,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 304 states, 224 states have (on average 1.5357142857142858) internal successors, (344), 225 states have internal predecessors, (344), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-28 05:23:22,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-11-28 05:23:22,733 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:23:22,735 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:23:22,736 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:23:22,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:22,744 INFO L85 PathProgramCache]: Analyzing trace with hash 936576667, now seen corresponding path program 1 times [2024-11-28 05:23:22,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:23:22,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661605621] [2024-11-28 05:23:22,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:22,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:24,970 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2024-11-28 05:23:24,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:23:24,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661605621] [2024-11-28 05:23:24,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661605621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:23:24,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:23:24,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:23:24,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042518204] [2024-11-28 05:23:24,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:23:24,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:23:24,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:23:25,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:23:25,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:23:25,024 INFO L87 Difference]: Start difference. First operand has 304 states, 224 states have (on average 1.5357142857142858) internal successors, (344), 225 states have internal predecessors, (344), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2024-11-28 05:23:25,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:23:25,975 INFO L93 Difference]: Finished difference Result 600 states and 1065 transitions. [2024-11-28 05:23:25,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:23:25,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) Word has length 530 [2024-11-28 05:23:25,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:23:25,997 INFO L225 Difference]: With dead ends: 600 [2024-11-28 05:23:25,997 INFO L226 Difference]: Without dead ends: 299 [2024-11-28 05:23:26,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:23:26,006 INFO L435 NwaCegarLoop]: 438 mSDtfsCounter, 371 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:23:26,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 721 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:23:26,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-28 05:23:26,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2024-11-28 05:23:26,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 220 states have (on average 1.509090909090909) internal successors, (332), 220 states have internal predecessors, (332), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-28 05:23:26,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 486 transitions. [2024-11-28 05:23:26,134 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 486 transitions. Word has length 530 [2024-11-28 05:23:26,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:23:26,141 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 486 transitions. [2024-11-28 05:23:26,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2024-11-28 05:23:26,142 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 486 transitions. [2024-11-28 05:23:26,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-11-28 05:23:26,162 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:23:26,163 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:23:26,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:23:26,163 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:23:26,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:26,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1997453145, now seen corresponding path program 1 times [2024-11-28 05:23:26,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:23:26,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012271398] [2024-11-28 05:23:26,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:26,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:26,865 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2024-11-28 05:23:26,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:23:26,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012271398] [2024-11-28 05:23:26,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012271398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:23:26,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:23:26,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:23:26,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958456157] [2024-11-28 05:23:26,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:23:26,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:23:26,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:23:26,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:23:26,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:23:26,870 INFO L87 Difference]: Start difference. First operand 299 states and 486 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:27,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:23:27,043 INFO L93 Difference]: Finished difference Result 891 states and 1452 transitions. [2024-11-28 05:23:27,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:23:27,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 530 [2024-11-28 05:23:27,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:23:27,056 INFO L225 Difference]: With dead ends: 891 [2024-11-28 05:23:27,056 INFO L226 Difference]: Without dead ends: 595 [2024-11-28 05:23:27,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:23:27,060 INFO L435 NwaCegarLoop]: 480 mSDtfsCounter, 477 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:23:27,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 951 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:23:27,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-11-28 05:23:27,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 593. [2024-11-28 05:23:27,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 436 states have (on average 1.5068807339449541) internal successors, (657), 436 states have internal predecessors, (657), 154 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-28 05:23:27,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 965 transitions. [2024-11-28 05:23:27,248 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 965 transitions. Word has length 530 [2024-11-28 05:23:27,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:23:27,253 INFO L471 AbstractCegarLoop]: Abstraction has 593 states and 965 transitions. [2024-11-28 05:23:27,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:27,254 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 965 transitions. [2024-11-28 05:23:27,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-11-28 05:23:27,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:23:27,270 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:23:27,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:23:27,270 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:23:27,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:27,272 INFO L85 PathProgramCache]: Analyzing trace with hash 610667735, now seen corresponding path program 1 times [2024-11-28 05:23:27,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:23:27,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266129020] [2024-11-28 05:23:27,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:27,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:28,001 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2024-11-28 05:23:28,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:23:28,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266129020] [2024-11-28 05:23:28,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266129020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:23:28,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:23:28,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:23:28,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120883169] [2024-11-28 05:23:28,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:23:28,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:23:28,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:23:28,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:23:28,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:23:28,010 INFO L87 Difference]: Start difference. First operand 593 states and 965 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:28,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:23:28,224 INFO L93 Difference]: Finished difference Result 1761 states and 2868 transitions. [2024-11-28 05:23:28,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:23:28,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 530 [2024-11-28 05:23:28,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:23:28,247 INFO L225 Difference]: With dead ends: 1761 [2024-11-28 05:23:28,247 INFO L226 Difference]: Without dead ends: 1171 [2024-11-28 05:23:28,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:23:28,253 INFO L435 NwaCegarLoop]: 905 mSDtfsCounter, 462 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:23:28,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 1373 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:23:28,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2024-11-28 05:23:28,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 749. [2024-11-28 05:23:28,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 592 states have (on average 1.5456081081081081) internal successors, (915), 592 states have internal predecessors, (915), 154 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-28 05:23:28,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1223 transitions. [2024-11-28 05:23:28,461 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1223 transitions. Word has length 530 [2024-11-28 05:23:28,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:23:28,464 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 1223 transitions. [2024-11-28 05:23:28,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:28,465 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1223 transitions. [2024-11-28 05:23:28,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-11-28 05:23:28,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:23:28,484 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:23:28,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:23:28,485 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:23:28,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:28,487 INFO L85 PathProgramCache]: Analyzing trace with hash 651342485, now seen corresponding path program 1 times [2024-11-28 05:23:28,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:23:28,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209488587] [2024-11-28 05:23:28,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:28,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:29,023 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2024-11-28 05:23:29,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:23:29,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209488587] [2024-11-28 05:23:29,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209488587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:23:29,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:23:29,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:23:29,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491456592] [2024-11-28 05:23:29,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:23:29,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:23:29,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:23:29,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:23:29,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:23:29,029 INFO L87 Difference]: Start difference. First operand 749 states and 1223 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:29,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:23:29,307 INFO L93 Difference]: Finished difference Result 1884 states and 3080 transitions. [2024-11-28 05:23:29,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:23:29,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 530 [2024-11-28 05:23:29,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:23:29,316 INFO L225 Difference]: With dead ends: 1884 [2024-11-28 05:23:29,316 INFO L226 Difference]: Without dead ends: 1138 [2024-11-28 05:23:29,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:23:29,319 INFO L435 NwaCegarLoop]: 520 mSDtfsCounter, 479 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:23:29,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 984 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:23:29,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2024-11-28 05:23:29,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 837. [2024-11-28 05:23:29,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 680 states have (on average 1.5514705882352942) internal successors, (1055), 680 states have internal predecessors, (1055), 154 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-28 05:23:29,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1363 transitions. [2024-11-28 05:23:29,471 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1363 transitions. Word has length 530 [2024-11-28 05:23:29,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:23:29,473 INFO L471 AbstractCegarLoop]: Abstraction has 837 states and 1363 transitions. [2024-11-28 05:23:29,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:29,473 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1363 transitions. [2024-11-28 05:23:29,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-11-28 05:23:29,489 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:23:29,489 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:23:29,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:23:29,489 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:23:29,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:29,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1792975317, now seen corresponding path program 1 times [2024-11-28 05:23:29,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:23:29,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046993940] [2024-11-28 05:23:29,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:29,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:30,049 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2024-11-28 05:23:30,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:23:30,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046993940] [2024-11-28 05:23:30,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046993940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:23:30,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:23:30,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:23:30,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213852313] [2024-11-28 05:23:30,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:23:30,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:23:30,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:23:30,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:23:30,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:23:30,053 INFO L87 Difference]: Start difference. First operand 837 states and 1363 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:30,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:23:30,416 INFO L93 Difference]: Finished difference Result 2299 states and 3741 transitions. [2024-11-28 05:23:30,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:23:30,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 530 [2024-11-28 05:23:30,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:23:30,431 INFO L225 Difference]: With dead ends: 2299 [2024-11-28 05:23:30,431 INFO L226 Difference]: Without dead ends: 1465 [2024-11-28 05:23:30,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:23:30,436 INFO L435 NwaCegarLoop]: 474 mSDtfsCounter, 263 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:23:30,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 934 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:23:30,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2024-11-28 05:23:30,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1461. [2024-11-28 05:23:30,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1246 states have (on average 1.5682182985553772) internal successors, (1954), 1248 states have internal predecessors, (1954), 210 states have call successors, (210), 4 states have call predecessors, (210), 4 states have return successors, (210), 208 states have call predecessors, (210), 210 states have call successors, (210) [2024-11-28 05:23:30,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2374 transitions. [2024-11-28 05:23:30,664 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2374 transitions. Word has length 530 [2024-11-28 05:23:30,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:23:30,665 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 2374 transitions. [2024-11-28 05:23:30,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:30,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2374 transitions. [2024-11-28 05:23:30,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-11-28 05:23:30,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:23:30,687 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:23:30,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:23:30,687 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:23:30,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:30,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1815607571, now seen corresponding path program 1 times [2024-11-28 05:23:30,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:23:30,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125267724] [2024-11-28 05:23:30,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:30,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:35,684 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 93 proven. 135 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2024-11-28 05:23:35,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:23:35,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125267724] [2024-11-28 05:23:35,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125267724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:23:35,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345751956] [2024-11-28 05:23:35,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:35,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:23:35,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:23:35,692 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:23:35,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:23:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:36,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:23:36,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:23:37,366 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 5838 proven. 99 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2024-11-28 05:23:37,366 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:23:38,406 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 129 proven. 99 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2024-11-28 05:23:38,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345751956] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:23:38,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:23:38,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-28 05:23:38,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329883844] [2024-11-28 05:23:38,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:23:38,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 05:23:38,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:23:38,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 05:23:38,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:23:38,413 INFO L87 Difference]: Start difference. First operand 1461 states and 2374 transitions. Second operand has 9 states, 9 states have (on average 33.888888888888886) internal successors, (305), 9 states have internal predecessors, (305), 4 states have call successors, (155), 2 states have call predecessors, (155), 4 states have return successors, (157), 4 states have call predecessors, (157), 4 states have call successors, (157) [2024-11-28 05:23:39,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:23:39,963 INFO L93 Difference]: Finished difference Result 2939 states and 4753 transitions. [2024-11-28 05:23:39,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:23:39,965 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 33.888888888888886) internal successors, (305), 9 states have internal predecessors, (305), 4 states have call successors, (155), 2 states have call predecessors, (155), 4 states have return successors, (157), 4 states have call predecessors, (157), 4 states have call successors, (157) Word has length 530 [2024-11-28 05:23:39,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:23:39,979 INFO L225 Difference]: With dead ends: 2939 [2024-11-28 05:23:39,979 INFO L226 Difference]: Without dead ends: 1481 [2024-11-28 05:23:39,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1073 GetRequests, 1057 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:23:39,987 INFO L435 NwaCegarLoop]: 379 mSDtfsCounter, 538 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:23:39,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 986 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 05:23:39,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2024-11-28 05:23:40,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1469. [2024-11-28 05:23:40,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1250 states have (on average 1.5408) internal successors, (1926), 1252 states have internal predecessors, (1926), 210 states have call successors, (210), 8 states have call predecessors, (210), 8 states have return successors, (210), 208 states have call predecessors, (210), 210 states have call successors, (210) [2024-11-28 05:23:40,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2346 transitions. [2024-11-28 05:23:40,174 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2346 transitions. Word has length 530 [2024-11-28 05:23:40,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:23:40,176 INFO L471 AbstractCegarLoop]: Abstraction has 1469 states and 2346 transitions. [2024-11-28 05:23:40,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 33.888888888888886) internal successors, (305), 9 states have internal predecessors, (305), 4 states have call successors, (155), 2 states have call predecessors, (155), 4 states have return successors, (157), 4 states have call predecessors, (157), 4 states have call successors, (157) [2024-11-28 05:23:40,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2346 transitions. [2024-11-28 05:23:40,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-11-28 05:23:40,185 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:23:40,186 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:23:40,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:23:40,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:23:40,387 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:23:40,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:40,388 INFO L85 PathProgramCache]: Analyzing trace with hash 816812542, now seen corresponding path program 1 times [2024-11-28 05:23:40,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:23:40,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962964078] [2024-11-28 05:23:40,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:40,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:40,953 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2024-11-28 05:23:40,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:23:40,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962964078] [2024-11-28 05:23:40,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962964078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:23:40,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:23:40,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:23:40,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007646516] [2024-11-28 05:23:40,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:23:40,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:23:40,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:23:40,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:23:40,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:23:40,957 INFO L87 Difference]: Start difference. First operand 1469 states and 2346 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:41,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:23:41,351 INFO L93 Difference]: Finished difference Result 4195 states and 6704 transitions. [2024-11-28 05:23:41,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:23:41,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 531 [2024-11-28 05:23:41,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:23:41,370 INFO L225 Difference]: With dead ends: 4195 [2024-11-28 05:23:41,371 INFO L226 Difference]: Without dead ends: 2729 [2024-11-28 05:23:41,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:23:41,376 INFO L435 NwaCegarLoop]: 537 mSDtfsCounter, 281 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:23:41,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 1000 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:23:41,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2024-11-28 05:23:41,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2723. [2024-11-28 05:23:41,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2723 states, 2404 states have (on average 1.5524126455906821) internal successors, (3732), 2410 states have internal predecessors, (3732), 306 states have call successors, (306), 12 states have call predecessors, (306), 12 states have return successors, (306), 300 states have call predecessors, (306), 306 states have call successors, (306) [2024-11-28 05:23:41,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2723 states to 2723 states and 4344 transitions. [2024-11-28 05:23:41,621 INFO L78 Accepts]: Start accepts. Automaton has 2723 states and 4344 transitions. Word has length 531 [2024-11-28 05:23:41,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:23:41,624 INFO L471 AbstractCegarLoop]: Abstraction has 2723 states and 4344 transitions. [2024-11-28 05:23:41,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:41,625 INFO L276 IsEmpty]: Start isEmpty. Operand 2723 states and 4344 transitions. [2024-11-28 05:23:41,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-11-28 05:23:41,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:23:41,634 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:23:41,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:23:41,635 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:23:41,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:41,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1169900924, now seen corresponding path program 1 times [2024-11-28 05:23:41,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:23:41,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448164287] [2024-11-28 05:23:41,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:41,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:43,239 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2024-11-28 05:23:43,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:23:43,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448164287] [2024-11-28 05:23:43,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448164287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:23:43,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:23:43,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:23:43,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138183661] [2024-11-28 05:23:43,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:23:43,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:23:43,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:23:43,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:23:43,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:23:43,243 INFO L87 Difference]: Start difference. First operand 2723 states and 4344 transitions. Second operand has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:44,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:23:44,026 INFO L93 Difference]: Finished difference Result 7722 states and 12326 transitions. [2024-11-28 05:23:44,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:23:44,028 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 531 [2024-11-28 05:23:44,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:23:44,053 INFO L225 Difference]: With dead ends: 7722 [2024-11-28 05:23:44,053 INFO L226 Difference]: Without dead ends: 4956 [2024-11-28 05:23:44,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:23:44,060 INFO L435 NwaCegarLoop]: 475 mSDtfsCounter, 478 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 2348 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:23:44,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 2348 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:23:44,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4956 states. [2024-11-28 05:23:44,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4956 to 2878. [2024-11-28 05:23:44,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2878 states, 2478 states have (on average 1.539951573849879) internal successors, (3816), 2484 states have internal predecessors, (3816), 383 states have call successors, (383), 16 states have call predecessors, (383), 16 states have return successors, (383), 377 states have call predecessors, (383), 383 states have call successors, (383) [2024-11-28 05:23:44,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2878 states to 2878 states and 4582 transitions. [2024-11-28 05:23:44,365 INFO L78 Accepts]: Start accepts. Automaton has 2878 states and 4582 transitions. Word has length 531 [2024-11-28 05:23:44,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:23:44,366 INFO L471 AbstractCegarLoop]: Abstraction has 2878 states and 4582 transitions. [2024-11-28 05:23:44,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:44,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2878 states and 4582 transitions. [2024-11-28 05:23:44,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2024-11-28 05:23:44,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:23:44,375 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:23:44,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:23:44,376 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:23:44,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:44,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1014519272, now seen corresponding path program 1 times [2024-11-28 05:23:44,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:23:44,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365603398] [2024-11-28 05:23:44,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:44,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:44,841 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2024-11-28 05:23:44,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:23:44,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365603398] [2024-11-28 05:23:44,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365603398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:23:44,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:23:44,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:23:44,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823047075] [2024-11-28 05:23:44,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:23:44,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:23:44,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:23:44,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:23:44,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:23:44,845 INFO L87 Difference]: Start difference. First operand 2878 states and 4582 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:45,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:23:45,202 INFO L93 Difference]: Finished difference Result 5658 states and 9012 transitions. [2024-11-28 05:23:45,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:23:45,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 532 [2024-11-28 05:23:45,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:23:45,227 INFO L225 Difference]: With dead ends: 5658 [2024-11-28 05:23:45,227 INFO L226 Difference]: Without dead ends: 2938 [2024-11-28 05:23:45,233 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:23:45,234 INFO L435 NwaCegarLoop]: 772 mSDtfsCounter, 320 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:23:45,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 1227 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:23:45,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2024-11-28 05:23:45,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 2362. [2024-11-28 05:23:45,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2362 states, 2068 states have (on average 1.5618955512572534) internal successors, (3230), 2070 states have internal predecessors, (3230), 279 states have call successors, (279), 14 states have call predecessors, (279), 14 states have return successors, (279), 277 states have call predecessors, (279), 279 states have call successors, (279) [2024-11-28 05:23:45,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 3788 transitions. [2024-11-28 05:23:45,452 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 3788 transitions. Word has length 532 [2024-11-28 05:23:45,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:23:45,453 INFO L471 AbstractCegarLoop]: Abstraction has 2362 states and 3788 transitions. [2024-11-28 05:23:45,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:45,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 3788 transitions. [2024-11-28 05:23:45,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2024-11-28 05:23:45,461 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:23:45,462 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:23:45,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:23:45,462 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:23:45,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:45,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1785252838, now seen corresponding path program 1 times [2024-11-28 05:23:45,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:23:45,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322585312] [2024-11-28 05:23:45,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:45,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:47,275 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2024-11-28 05:23:47,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:23:47,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322585312] [2024-11-28 05:23:47,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322585312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:23:47,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:23:47,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:23:47,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708218897] [2024-11-28 05:23:47,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:23:47,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:23:47,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:23:47,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:23:47,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:23:47,282 INFO L87 Difference]: Start difference. First operand 2362 states and 3788 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:48,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:23:48,274 INFO L93 Difference]: Finished difference Result 6472 states and 10376 transitions. [2024-11-28 05:23:48,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:23:48,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 532 [2024-11-28 05:23:48,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:23:48,308 INFO L225 Difference]: With dead ends: 6472 [2024-11-28 05:23:48,308 INFO L226 Difference]: Without dead ends: 4268 [2024-11-28 05:23:48,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:23:48,315 INFO L435 NwaCegarLoop]: 676 mSDtfsCounter, 629 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:23:48,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 1205 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 05:23:48,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4268 states. [2024-11-28 05:23:48,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4268 to 4170. [2024-11-28 05:23:48,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4170 states, 3662 states have (on average 1.5581649371927908) internal successors, (5706), 3666 states have internal predecessors, (5706), 481 states have call successors, (481), 26 states have call predecessors, (481), 26 states have return successors, (481), 477 states have call predecessors, (481), 481 states have call successors, (481) [2024-11-28 05:23:48,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4170 states to 4170 states and 6668 transitions. [2024-11-28 05:23:48,684 INFO L78 Accepts]: Start accepts. Automaton has 4170 states and 6668 transitions. Word has length 532 [2024-11-28 05:23:48,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:23:48,685 INFO L471 AbstractCegarLoop]: Abstraction has 4170 states and 6668 transitions. [2024-11-28 05:23:48,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:48,687 INFO L276 IsEmpty]: Start isEmpty. Operand 4170 states and 6668 transitions. [2024-11-28 05:23:48,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2024-11-28 05:23:48,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:23:48,696 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:23:48,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 05:23:48,697 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:23:48,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:48,698 INFO L85 PathProgramCache]: Analyzing trace with hash 921366556, now seen corresponding path program 1 times [2024-11-28 05:23:48,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:23:48,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437048390] [2024-11-28 05:23:48,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:48,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:51,351 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 114 proven. 114 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2024-11-28 05:23:51,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:23:51,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437048390] [2024-11-28 05:23:51,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437048390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:23:51,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586944655] [2024-11-28 05:23:51,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:51,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:23:51,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:23:51,354 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:23:51,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:23:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:51,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 1311 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:23:51,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:23:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 5898 proven. 105 refuted. 0 times theorem prover too weak. 5701 trivial. 0 not checked. [2024-11-28 05:23:52,622 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:23:53,376 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 123 proven. 105 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2024-11-28 05:23:53,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586944655] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:23:53,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:23:53,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-28 05:23:53,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542402056] [2024-11-28 05:23:53,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:23:53,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 05:23:53,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:23:53,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 05:23:53,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:23:53,381 INFO L87 Difference]: Start difference. First operand 4170 states and 6668 transitions. Second operand has 9 states, 9 states have (on average 32.77777777777778) internal successors, (295), 9 states have internal predecessors, (295), 4 states have call successors, (150), 2 states have call predecessors, (150), 4 states have return successors, (152), 4 states have call predecessors, (152), 4 states have call successors, (152) [2024-11-28 05:23:54,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:23:54,778 INFO L93 Difference]: Finished difference Result 8280 states and 13185 transitions. [2024-11-28 05:23:54,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:23:54,779 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 32.77777777777778) internal successors, (295), 9 states have internal predecessors, (295), 4 states have call successors, (150), 2 states have call predecessors, (150), 4 states have return successors, (152), 4 states have call predecessors, (152), 4 states have call successors, (152) Word has length 532 [2024-11-28 05:23:54,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:23:54,820 INFO L225 Difference]: With dead ends: 8280 [2024-11-28 05:23:54,820 INFO L226 Difference]: Without dead ends: 4262 [2024-11-28 05:23:54,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1077 GetRequests, 1061 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:23:54,831 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 1064 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:23:54,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1066 Valid, 958 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:23:54,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4262 states. [2024-11-28 05:23:55,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4262 to 4210. [2024-11-28 05:23:55,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4210 states, 3692 states have (on average 1.5395449620801733) internal successors, (5684), 3696 states have internal predecessors, (5684), 481 states have call successors, (481), 36 states have call predecessors, (481), 36 states have return successors, (481), 477 states have call predecessors, (481), 481 states have call successors, (481) [2024-11-28 05:23:55,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4210 states to 4210 states and 6646 transitions. [2024-11-28 05:23:55,202 INFO L78 Accepts]: Start accepts. Automaton has 4210 states and 6646 transitions. Word has length 532 [2024-11-28 05:23:55,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:23:55,203 INFO L471 AbstractCegarLoop]: Abstraction has 4210 states and 6646 transitions. [2024-11-28 05:23:55,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 32.77777777777778) internal successors, (295), 9 states have internal predecessors, (295), 4 states have call successors, (150), 2 states have call predecessors, (150), 4 states have return successors, (152), 4 states have call predecessors, (152), 4 states have call successors, (152) [2024-11-28 05:23:55,203 INFO L276 IsEmpty]: Start isEmpty. Operand 4210 states and 6646 transitions. [2024-11-28 05:23:55,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-28 05:23:55,211 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:23:55,212 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:23:55,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:23:55,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:23:55,412 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:23:55,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:55,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1295061189, now seen corresponding path program 1 times [2024-11-28 05:23:55,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:23:55,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243829287] [2024-11-28 05:23:55,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:55,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:56,283 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2024-11-28 05:23:56,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:23:56,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243829287] [2024-11-28 05:23:56,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243829287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:23:56,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:23:56,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:23:56,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773129643] [2024-11-28 05:23:56,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:23:56,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:23:56,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:23:56,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:23:56,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:23:56,290 INFO L87 Difference]: Start difference. First operand 4210 states and 6646 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:57,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:23:57,661 INFO L93 Difference]: Finished difference Result 13722 states and 21585 transitions. [2024-11-28 05:23:57,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:23:57,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 533 [2024-11-28 05:23:57,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:23:57,712 INFO L225 Difference]: With dead ends: 13722 [2024-11-28 05:23:57,712 INFO L226 Difference]: Without dead ends: 9678 [2024-11-28 05:23:57,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:23:57,724 INFO L435 NwaCegarLoop]: 973 mSDtfsCounter, 1020 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 2373 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:23:57,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 2373 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:23:57,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9678 states. [2024-11-28 05:23:58,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9678 to 8724. [2024-11-28 05:23:58,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8724 states, 7772 states have (on average 1.5388574369531651) internal successors, (11960), 7780 states have internal predecessors, (11960), 885 states have call successors, (885), 66 states have call predecessors, (885), 66 states have return successors, (885), 877 states have call predecessors, (885), 885 states have call successors, (885) [2024-11-28 05:23:58,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8724 states to 8724 states and 13730 transitions. [2024-11-28 05:23:58,615 INFO L78 Accepts]: Start accepts. Automaton has 8724 states and 13730 transitions. Word has length 533 [2024-11-28 05:23:58,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:23:58,616 INFO L471 AbstractCegarLoop]: Abstraction has 8724 states and 13730 transitions. [2024-11-28 05:23:58,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:23:58,617 INFO L276 IsEmpty]: Start isEmpty. Operand 8724 states and 13730 transitions. [2024-11-28 05:23:58,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2024-11-28 05:23:58,629 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:23:58,629 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:23:58,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 05:23:58,629 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:23:58,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:58,630 INFO L85 PathProgramCache]: Analyzing trace with hash 575935875, now seen corresponding path program 1 times [2024-11-28 05:23:58,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:23:58,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073100057] [2024-11-28 05:23:58,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:58,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:00,541 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2024-11-28 05:24:00,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:24:00,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073100057] [2024-11-28 05:24:00,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073100057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:24:00,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:24:00,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 05:24:00,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481508286] [2024-11-28 05:24:00,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:24:00,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 05:24:00,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:24:00,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 05:24:00,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:24:00,545 INFO L87 Difference]: Start difference. First operand 8724 states and 13730 transitions. Second operand has 10 states, 10 states have (on average 15.2) internal successors, (152), 10 states have internal predecessors, (152), 3 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2024-11-28 05:24:07,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:24:07,880 INFO L93 Difference]: Finished difference Result 24018 states and 37211 transitions. [2024-11-28 05:24:07,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 05:24:07,881 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.2) internal successors, (152), 10 states have internal predecessors, (152), 3 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) Word has length 534 [2024-11-28 05:24:07,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:24:07,940 INFO L225 Difference]: With dead ends: 24018 [2024-11-28 05:24:07,940 INFO L226 Difference]: Without dead ends: 15460 [2024-11-28 05:24:07,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2024-11-28 05:24:07,956 INFO L435 NwaCegarLoop]: 904 mSDtfsCounter, 3506 mSDsluCounter, 3285 mSDsCounter, 0 mSdLazyCounter, 1802 mSolverCounterSat, 1049 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3506 SdHoareTripleChecker+Valid, 4189 SdHoareTripleChecker+Invalid, 2851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1049 IncrementalHoareTripleChecker+Valid, 1802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:24:07,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3506 Valid, 4189 Invalid, 2851 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1049 Valid, 1802 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 05:24:07,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15460 states. [2024-11-28 05:24:10,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15460 to 14028. [2024-11-28 05:24:10,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14028 states, 12206 states have (on average 1.501392757660167) internal successors, (18326), 12246 states have internal predecessors, (18326), 1661 states have call successors, (1661), 160 states have call predecessors, (1661), 160 states have return successors, (1661), 1621 states have call predecessors, (1661), 1661 states have call successors, (1661) [2024-11-28 05:24:10,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14028 states to 14028 states and 21648 transitions. [2024-11-28 05:24:10,131 INFO L78 Accepts]: Start accepts. Automaton has 14028 states and 21648 transitions. Word has length 534 [2024-11-28 05:24:10,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:24:10,133 INFO L471 AbstractCegarLoop]: Abstraction has 14028 states and 21648 transitions. [2024-11-28 05:24:10,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.2) internal successors, (152), 10 states have internal predecessors, (152), 3 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2024-11-28 05:24:10,133 INFO L276 IsEmpty]: Start isEmpty. Operand 14028 states and 21648 transitions. [2024-11-28 05:24:10,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2024-11-28 05:24:10,150 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:24:10,150 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:24:10,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 05:24:10,151 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:24:10,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:24:10,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1473329153, now seen corresponding path program 1 times [2024-11-28 05:24:10,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:24:10,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330569558] [2024-11-28 05:24:10,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:24:10,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:24:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:13,420 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 177 proven. 51 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2024-11-28 05:24:13,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:24:13,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330569558] [2024-11-28 05:24:13,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330569558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:24:13,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556722746] [2024-11-28 05:24:13,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:24:13,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:24:13,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:24:13,425 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:24:13,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:24:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:13,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 1310 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 05:24:13,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:24:14,544 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 4206 proven. 51 refuted. 0 times theorem prover too weak. 7447 trivial. 0 not checked. [2024-11-28 05:24:14,544 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:24:15,355 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 177 proven. 51 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2024-11-28 05:24:15,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556722746] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:24:15,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:24:15,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-11-28 05:24:15,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877423359] [2024-11-28 05:24:15,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:24:15,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 05:24:15,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:24:15,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 05:24:15,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:24:15,361 INFO L87 Difference]: Start difference. First operand 14028 states and 21648 transitions. Second operand has 14 states, 14 states have (on average 21.857142857142858) internal successors, (306), 14 states have internal predecessors, (306), 3 states have call successors, (111), 2 states have call predecessors, (111), 4 states have return successors, (112), 3 states have call predecessors, (112), 3 states have call successors, (112) [2024-11-28 05:24:21,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:24:21,590 INFO L93 Difference]: Finished difference Result 57102 states and 87318 transitions. [2024-11-28 05:24:21,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 05:24:21,591 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 21.857142857142858) internal successors, (306), 14 states have internal predecessors, (306), 3 states have call successors, (111), 2 states have call predecessors, (111), 4 states have return successors, (112), 3 states have call predecessors, (112), 3 states have call successors, (112) Word has length 534 [2024-11-28 05:24:21,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:24:21,783 INFO L225 Difference]: With dead ends: 57102 [2024-11-28 05:24:21,783 INFO L226 Difference]: Without dead ends: 43248 [2024-11-28 05:24:21,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1095 GetRequests, 1064 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=304, Invalid=752, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 05:24:21,820 INFO L435 NwaCegarLoop]: 735 mSDtfsCounter, 1504 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 2076 mSolverCounterSat, 683 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1624 SdHoareTripleChecker+Valid, 3935 SdHoareTripleChecker+Invalid, 2759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 683 IncrementalHoareTripleChecker+Valid, 2076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:24:21,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1624 Valid, 3935 Invalid, 2759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [683 Valid, 2076 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 05:24:21,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43248 states. [2024-11-28 05:24:24,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43248 to 30528. [2024-11-28 05:24:24,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30528 states, 26945 states have (on average 1.486175542772314) internal successors, (40045), 27033 states have internal predecessors, (40045), 3245 states have call successors, (3245), 337 states have call predecessors, (3245), 337 states have return successors, (3245), 3157 states have call predecessors, (3245), 3245 states have call successors, (3245) [2024-11-28 05:24:24,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30528 states to 30528 states and 46535 transitions. [2024-11-28 05:24:24,866 INFO L78 Accepts]: Start accepts. Automaton has 30528 states and 46535 transitions. Word has length 534 [2024-11-28 05:24:24,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:24:24,867 INFO L471 AbstractCegarLoop]: Abstraction has 30528 states and 46535 transitions. [2024-11-28 05:24:24,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 21.857142857142858) internal successors, (306), 14 states have internal predecessors, (306), 3 states have call successors, (111), 2 states have call predecessors, (111), 4 states have return successors, (112), 3 states have call predecessors, (112), 3 states have call successors, (112) [2024-11-28 05:24:24,868 INFO L276 IsEmpty]: Start isEmpty. Operand 30528 states and 46535 transitions. [2024-11-28 05:24:24,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2024-11-28 05:24:24,893 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:24:24,893 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:24:24,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:24:25,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 05:24:25,098 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:24:25,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:24:25,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1854287489, now seen corresponding path program 1 times [2024-11-28 05:24:25,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:24:25,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598101218] [2024-11-28 05:24:25,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:24:25,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:24:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:27,223 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2024-11-28 05:24:27,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:24:27,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598101218] [2024-11-28 05:24:27,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598101218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:24:27,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:24:27,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:24:27,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437439990] [2024-11-28 05:24:27,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:24:27,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:24:27,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:24:27,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:24:27,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:24:27,229 INFO L87 Difference]: Start difference. First operand 30528 states and 46535 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:24:33,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:24:33,704 INFO L93 Difference]: Finished difference Result 95628 states and 144562 transitions. [2024-11-28 05:24:33,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:24:33,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 534 [2024-11-28 05:24:33,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:24:33,960 INFO L225 Difference]: With dead ends: 95628 [2024-11-28 05:24:33,960 INFO L226 Difference]: Without dead ends: 65278 [2024-11-28 05:24:34,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:24:34,018 INFO L435 NwaCegarLoop]: 889 mSDtfsCounter, 961 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:24:34,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 1918 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 05:24:34,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65278 states. [2024-11-28 05:24:39,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65278 to 56024. [2024-11-28 05:24:39,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56024 states, 50224 states have (on average 1.483513857916534) internal successors, (74508), 50384 states have internal predecessors, (74508), 5253 states have call successors, (5253), 546 states have call predecessors, (5253), 546 states have return successors, (5253), 5093 states have call predecessors, (5253), 5253 states have call successors, (5253) [2024-11-28 05:24:39,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56024 states to 56024 states and 85014 transitions. [2024-11-28 05:24:39,491 INFO L78 Accepts]: Start accepts. Automaton has 56024 states and 85014 transitions. Word has length 534 [2024-11-28 05:24:39,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:24:39,492 INFO L471 AbstractCegarLoop]: Abstraction has 56024 states and 85014 transitions. [2024-11-28 05:24:39,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-28 05:24:39,492 INFO L276 IsEmpty]: Start isEmpty. Operand 56024 states and 85014 transitions. [2024-11-28 05:24:39,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2024-11-28 05:24:39,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:24:39,531 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:24:39,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 05:24:39,531 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:24:39,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:24:39,532 INFO L85 PathProgramCache]: Analyzing trace with hash 509458887, now seen corresponding path program 1 times [2024-11-28 05:24:39,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:24:39,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161837681] [2024-11-28 05:24:39,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:24:39,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:24:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:42,283 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 177 proven. 51 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2024-11-28 05:24:42,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:24:42,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161837681] [2024-11-28 05:24:42,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161837681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:24:42,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476873064] [2024-11-28 05:24:42,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:24:42,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:24:42,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:24:42,287 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:24:42,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3138140c-feef-4d80-b050-b4b8f4ec9b1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:24:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:43,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 1311 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 05:24:43,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:24:43,719 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 4206 proven. 51 refuted. 0 times theorem prover too weak. 7447 trivial. 0 not checked. [2024-11-28 05:24:43,719 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:24:44,542 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 177 proven. 51 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2024-11-28 05:24:44,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476873064] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:24:44,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:24:44,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-11-28 05:24:44,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704000947] [2024-11-28 05:24:44,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:24:44,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 05:24:44,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:24:44,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 05:24:44,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:24:44,547 INFO L87 Difference]: Start difference. First operand 56024 states and 85014 transitions. Second operand has 14 states, 14 states have (on average 20.285714285714285) internal successors, (284), 14 states have internal predecessors, (284), 3 states have call successors, (111), 2 states have call predecessors, (111), 4 states have return successors, (112), 3 states have call predecessors, (112), 3 states have call successors, (112)