./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-0.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC --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 465302550670ddfe2aca9dabc319e04462635a8aa1413623f09c27b5df4d6427 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:14:07,313 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:14:07,382 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:14:07,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:14:07,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:14:07,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:14:07,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:14:07,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:14:07,420 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:14:07,420 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:14:07,420 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:14:07,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:14:07,421 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:14:07,421 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:14:07,422 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:14:07,422 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:14:07,422 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:14:07,422 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:14:07,422 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:14:07,423 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:14:07,423 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:14:07,423 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:14:07,423 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:14:07,423 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:14:07,424 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:14:07,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:14:07,424 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:14:07,424 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:14:07,424 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:14:07,424 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:14:07,425 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:14:07,425 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:14:07,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:14:07,425 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:14:07,425 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:14:07,426 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:14:07,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:14:07,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:14:07,426 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:14:07,426 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:14:07,427 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:14:07,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:14:07,427 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:14:07,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:14:07,427 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:14:07,427 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:14:07,428 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:14:07,428 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:14:07,428 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_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC 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 -> 465302550670ddfe2aca9dabc319e04462635a8aa1413623f09c27b5df4d6427 [2024-11-23 23:14:07,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:14:07,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:14:07,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:14:07,797 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:14:07,797 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:14:07,799 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-0.i [2024-11-23 23:14:11,300 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/data/3390b89ad/0598964ffb9841e0aa415cc2ba789cfa/FLAG070c257fa [2024-11-23 23:14:11,747 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:14:11,748 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-0.i [2024-11-23 23:14:11,764 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/data/3390b89ad/0598964ffb9841e0aa415cc2ba789cfa/FLAG070c257fa [2024-11-23 23:14:11,872 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/data/3390b89ad/0598964ffb9841e0aa415cc2ba789cfa [2024-11-23 23:14:11,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:14:11,877 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:14:11,879 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:14:11,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:14:11,885 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:14:11,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:14:11" (1/1) ... [2024-11-23 23:14:11,888 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 23.11 11:14:11, skipping insertion in model container [2024-11-23 23:14:11,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:14:11" (1/1) ... [2024-11-23 23:14:11,927 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:14:12,098 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_58ed05b8-6116-484b-be13-a134b9bb9af7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-0.i[915,928] [2024-11-23 23:14:12,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:14:12,282 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:14:12,302 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_58ed05b8-6116-484b-be13-a134b9bb9af7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-0.i[915,928] [2024-11-23 23:14:12,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:14:12,474 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:14:12,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:14:12 WrapperNode [2024-11-23 23:14:12,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:14:12,477 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:14:12,477 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:14:12,477 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:14:12,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:14:12" (1/1) ... [2024-11-23 23:14:12,517 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:14:12" (1/1) ... [2024-11-23 23:14:12,586 INFO L138 Inliner]: procedures = 26, calls = 85, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 477 [2024-11-23 23:14:12,586 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:14:12,587 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:14:12,587 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:14:12,587 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:14:12,597 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:14:12" (1/1) ... [2024-11-23 23:14:12,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:14:12" (1/1) ... [2024-11-23 23:14:12,603 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:14:12" (1/1) ... [2024-11-23 23:14:12,626 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]. [2024-11-23 23:14:12,626 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:14:12" (1/1) ... [2024-11-23 23:14:12,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:14:12" (1/1) ... [2024-11-23 23:14:12,642 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:14:12" (1/1) ... [2024-11-23 23:14:12,645 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:14:12" (1/1) ... [2024-11-23 23:14:12,651 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:14:12" (1/1) ... [2024-11-23 23:14:12,656 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:14:12" (1/1) ... [2024-11-23 23:14:12,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:14:12" (1/1) ... [2024-11-23 23:14:12,667 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:14:12,668 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:14:12,668 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:14:12,668 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:14:12,674 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:14:12" (1/1) ... [2024-11-23 23:14:12,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:14:12,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:14:12,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:14:12,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:14:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:14:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:14:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:14:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:14:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:14:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:14:12,973 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:14:12,976 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:14:14,233 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-23 23:14:14,234 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:14:14,262 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:14:14,265 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:14:14,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:14:14 BoogieIcfgContainer [2024-11-23 23:14:14,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:14:14,270 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:14:14,270 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:14:14,276 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:14:14,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:14:11" (1/3) ... [2024-11-23 23:14:14,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217201d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:14:14, skipping insertion in model container [2024-11-23 23:14:14,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:14:12" (2/3) ... [2024-11-23 23:14:14,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217201d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:14:14, skipping insertion in model container [2024-11-23 23:14:14,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:14:14" (3/3) ... [2024-11-23 23:14:14,282 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-0.i [2024-11-23 23:14:14,302 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:14:14,305 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-0.i that has 2 procedures, 203 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:14:14,390 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:14:14,407 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;@534e0671, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:14:14,407 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:14:14,414 INFO L276 IsEmpty]: Start isEmpty. Operand has 203 states, 128 states have (on average 1.5234375) internal successors, (195), 129 states have internal predecessors, (195), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-23 23:14:14,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-23 23:14:14,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:14,453 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:14,453 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:14,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:14,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2036905828, now seen corresponding path program 1 times [2024-11-23 23:14:14,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:14:14,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650461383] [2024-11-23 23:14:14,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:14,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:14:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:15,411 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 10082 trivial. 0 not checked. [2024-11-23 23:14:15,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:14:15,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650461383] [2024-11-23 23:14:15,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650461383] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:14:15,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191911405] [2024-11-23 23:14:15,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:15,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:14:15,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:14:15,421 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:14:15,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:14:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:15,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:14:15,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:14:16,061 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 10082 trivial. 0 not checked. [2024-11-23 23:14:16,061 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:14:16,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191911405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:14:16,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:14:16,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 23:14:16,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374841346] [2024-11-23 23:14:16,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:14:16,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:14:16,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:14:16,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:14:16,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:14:16,104 INFO L87 Difference]: Start difference. First operand has 203 states, 128 states have (on average 1.5234375) internal successors, (195), 129 states have internal predecessors, (195), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) Second operand has 2 states, 2 states have (on average 51.0) internal successors, (102), 2 states have internal predecessors, (102), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-23 23:14:16,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:14:16,170 INFO L93 Difference]: Finished difference Result 399 states and 744 transitions. [2024-11-23 23:14:16,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:14:16,173 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 51.0) internal successors, (102), 2 states have internal predecessors, (102), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 2 states have call successors, (72) Word has length 457 [2024-11-23 23:14:16,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:14:16,191 INFO L225 Difference]: With dead ends: 399 [2024-11-23 23:14:16,191 INFO L226 Difference]: Without dead ends: 199 [2024-11-23 23:14:16,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:14:16,201 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:14:16,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:14:16,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-23 23:14:16,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2024-11-23 23:14:16,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 125 states have (on average 1.504) internal successors, (188), 125 states have internal predecessors, (188), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-23 23:14:16,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 332 transitions. [2024-11-23 23:14:16,281 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 332 transitions. Word has length 457 [2024-11-23 23:14:16,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:14:16,282 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 332 transitions. [2024-11-23 23:14:16,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 51.0) internal successors, (102), 2 states have internal predecessors, (102), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-23 23:14:16,282 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 332 transitions. [2024-11-23 23:14:16,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-23 23:14:16,297 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:16,298 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:16,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 23:14:16,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 23:14:16,499 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:16,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:16,500 INFO L85 PathProgramCache]: Analyzing trace with hash -789100372, now seen corresponding path program 1 times [2024-11-23 23:14:16,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:14:16,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904338417] [2024-11-23 23:14:16,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:16,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:14:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:17,455 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-23 23:14:17,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:14:17,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904338417] [2024-11-23 23:14:17,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904338417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:14:17,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:14:17,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:14:17,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914291576] [2024-11-23 23:14:17,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:14:17,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:14:17,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:14:17,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:14:17,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:14:17,460 INFO L87 Difference]: Start difference. First operand 199 states and 332 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-23 23:14:17,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:14:17,636 INFO L93 Difference]: Finished difference Result 556 states and 922 transitions. [2024-11-23 23:14:17,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:14:17,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 457 [2024-11-23 23:14:17,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:14:17,651 INFO L225 Difference]: With dead ends: 556 [2024-11-23 23:14:17,652 INFO L226 Difference]: Without dead ends: 360 [2024-11-23 23:14:17,654 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 [2024-11-23 23:14:17,658 INFO L435 NwaCegarLoop]: 528 mSDtfsCounter, 251 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:14:17,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 848 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:14:17,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-23 23:14:17,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 216. [2024-11-23 23:14:17,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 142 states have (on average 1.5422535211267605) internal successors, (219), 142 states have internal predecessors, (219), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-23 23:14:17,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 363 transitions. [2024-11-23 23:14:17,727 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 363 transitions. Word has length 457 [2024-11-23 23:14:17,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:14:17,732 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 363 transitions. [2024-11-23 23:14:17,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-23 23:14:17,733 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 363 transitions. [2024-11-23 23:14:17,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-23 23:14:17,748 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:17,748 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:17,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:14:17,749 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:17,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:17,751 INFO L85 PathProgramCache]: Analyzing trace with hash -514340758, now seen corresponding path program 1 times [2024-11-23 23:14:17,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:14:17,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488481459] [2024-11-23 23:14:17,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:17,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:14:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:18,315 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-23 23:14:18,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:14:18,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488481459] [2024-11-23 23:14:18,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488481459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:14:18,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:14:18,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:14:18,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202686032] [2024-11-23 23:14:18,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:14:18,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:14:18,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:14:18,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:14:18,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:14:18,322 INFO L87 Difference]: Start difference. First operand 216 states and 363 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-23 23:14:18,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:14:18,415 INFO L93 Difference]: Finished difference Result 573 states and 951 transitions. [2024-11-23 23:14:18,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:14:18,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 457 [2024-11-23 23:14:18,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:14:18,425 INFO L225 Difference]: With dead ends: 573 [2024-11-23 23:14:18,425 INFO L226 Difference]: Without dead ends: 360 [2024-11-23 23:14:18,427 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 [2024-11-23 23:14:18,428 INFO L435 NwaCegarLoop]: 355 mSDtfsCounter, 249 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:14:18,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 675 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:14:18,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-23 23:14:18,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 216. [2024-11-23 23:14:18,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 142 states have (on average 1.528169014084507) internal successors, (217), 142 states have internal predecessors, (217), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-23 23:14:18,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 361 transitions. [2024-11-23 23:14:18,476 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 361 transitions. Word has length 457 [2024-11-23 23:14:18,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:14:18,477 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 361 transitions. [2024-11-23 23:14:18,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-23 23:14:18,478 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 361 transitions. [2024-11-23 23:14:18,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-23 23:14:18,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:18,483 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:18,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:14:18,484 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:18,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:18,485 INFO L85 PathProgramCache]: Analyzing trace with hash -91638932, now seen corresponding path program 1 times [2024-11-23 23:14:18,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:14:18,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418019050] [2024-11-23 23:14:18,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:18,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:14:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:19,608 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-23 23:14:19,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:14:19,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418019050] [2024-11-23 23:14:19,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418019050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:14:19,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:14:19,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:14:19,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473905601] [2024-11-23 23:14:19,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:14:19,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:14:19,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:14:19,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:14:19,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:14:19,614 INFO L87 Difference]: Start difference. First operand 216 states and 361 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-23 23:14:20,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:14:20,496 INFO L93 Difference]: Finished difference Result 643 states and 1078 transitions. [2024-11-23 23:14:20,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:14:20,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 457 [2024-11-23 23:14:20,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:14:20,508 INFO L225 Difference]: With dead ends: 643 [2024-11-23 23:14:20,508 INFO L226 Difference]: Without dead ends: 430 [2024-11-23 23:14:20,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:14:20,511 INFO L435 NwaCegarLoop]: 327 mSDtfsCounter, 262 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:14:20,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 1145 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:14:20,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-23 23:14:20,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 413. [2024-11-23 23:14:20,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 266 states have (on average 1.5338345864661653) internal successors, (408), 266 states have internal predecessors, (408), 144 states have call successors, (144), 2 states have call predecessors, (144), 2 states have return successors, (144), 144 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-23 23:14:20,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 696 transitions. [2024-11-23 23:14:20,638 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 696 transitions. Word has length 457 [2024-11-23 23:14:20,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:14:20,641 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 696 transitions. [2024-11-23 23:14:20,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-23 23:14:20,642 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 696 transitions. [2024-11-23 23:14:20,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-23 23:14:20,649 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:20,649 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:20,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:14:20,650 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:20,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:20,651 INFO L85 PathProgramCache]: Analyzing trace with hash -678444946, now seen corresponding path program 1 times [2024-11-23 23:14:20,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:14:20,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479747688] [2024-11-23 23:14:20,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:20,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:14:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:21,426 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-23 23:14:21,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:14:21,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479747688] [2024-11-23 23:14:21,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479747688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:14:21,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:14:21,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:14:21,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558557933] [2024-11-23 23:14:21,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:14:21,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:14:21,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:14:21,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:14:21,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:14:21,433 INFO L87 Difference]: Start difference. First operand 413 states and 696 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-23 23:14:21,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:14:21,515 INFO L93 Difference]: Finished difference Result 957 states and 1625 transitions. [2024-11-23 23:14:21,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:14:21,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 457 [2024-11-23 23:14:21,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:14:21,523 INFO L225 Difference]: With dead ends: 957 [2024-11-23 23:14:21,523 INFO L226 Difference]: Without dead ends: 692 [2024-11-23 23:14:21,525 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 [2024-11-23 23:14:21,526 INFO L435 NwaCegarLoop]: 396 mSDtfsCounter, 189 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:14:21,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 720 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:14:21,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-11-23 23:14:21,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 690. [2024-11-23 23:14:21,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 470 states have (on average 1.5638297872340425) internal successors, (735), 470 states have internal predecessors, (735), 216 states have call successors, (216), 3 states have call predecessors, (216), 3 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2024-11-23 23:14:21,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1167 transitions. [2024-11-23 23:14:21,650 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1167 transitions. Word has length 457 [2024-11-23 23:14:21,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:14:21,653 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 1167 transitions. [2024-11-23 23:14:21,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-23 23:14:21,653 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1167 transitions. [2024-11-23 23:14:21,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-23 23:14:21,661 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:21,661 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:21,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:14:21,662 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:21,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:21,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1571931284, now seen corresponding path program 1 times [2024-11-23 23:14:21,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:14:21,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054397248] [2024-11-23 23:14:21,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:21,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:14:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:22,906 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-23 23:14:22,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:14:22,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054397248] [2024-11-23 23:14:22,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054397248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:14:22,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:14:22,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:14:22,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090663716] [2024-11-23 23:14:22,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:14:22,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:14:22,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:14:22,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:14:22,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:14:22,910 INFO L87 Difference]: Start difference. First operand 690 states and 1167 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-23 23:14:24,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:14:24,625 INFO L93 Difference]: Finished difference Result 1568 states and 2630 transitions. [2024-11-23 23:14:24,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:14:24,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 457 [2024-11-23 23:14:24,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:14:24,637 INFO L225 Difference]: With dead ends: 1568 [2024-11-23 23:14:24,638 INFO L226 Difference]: Without dead ends: 1145 [2024-11-23 23:14:24,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:14:24,641 INFO L435 NwaCegarLoop]: 620 mSDtfsCounter, 604 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:14:24,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 1460 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 23:14:24,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2024-11-23 23:14:24,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 710. [2024-11-23 23:14:24,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 490 states have (on average 1.5571428571428572) internal successors, (763), 490 states have internal predecessors, (763), 216 states have call successors, (216), 3 states have call predecessors, (216), 3 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2024-11-23 23:14:24,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1195 transitions. [2024-11-23 23:14:24,784 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1195 transitions. Word has length 457 [2024-11-23 23:14:24,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:14:24,785 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 1195 transitions. [2024-11-23 23:14:24,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-23 23:14:24,786 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1195 transitions. [2024-11-23 23:14:24,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-23 23:14:24,790 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:24,791 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:24,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:14:24,791 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:24,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:24,792 INFO L85 PathProgramCache]: Analyzing trace with hash 948028650, now seen corresponding path program 1 times [2024-11-23 23:14:24,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:14:24,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059251191] [2024-11-23 23:14:24,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:24,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:14:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:26,133 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-23 23:14:26,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:14:26,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059251191] [2024-11-23 23:14:26,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059251191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:14:26,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:14:26,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:14:26,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095496971] [2024-11-23 23:14:26,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:14:26,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:14:26,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:14:26,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:14:26,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:14:26,140 INFO L87 Difference]: Start difference. First operand 710 states and 1195 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-23 23:14:26,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:14:26,774 INFO L93 Difference]: Finished difference Result 1618 states and 2700 transitions. [2024-11-23 23:14:26,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:14:26,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 457 [2024-11-23 23:14:26,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:14:26,786 INFO L225 Difference]: With dead ends: 1618 [2024-11-23 23:14:26,786 INFO L226 Difference]: Without dead ends: 1169 [2024-11-23 23:14:26,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:14:26,790 INFO L435 NwaCegarLoop]: 336 mSDtfsCounter, 298 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:14:26,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 984 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:14:26,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2024-11-23 23:14:27,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1131. [2024-11-23 23:14:27,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 765 states have (on average 1.542483660130719) internal successors, (1180), 765 states have internal predecessors, (1180), 360 states have call successors, (360), 5 states have call predecessors, (360), 5 states have return successors, (360), 360 states have call predecessors, (360), 360 states have call successors, (360) [2024-11-23 23:14:27,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1900 transitions. [2024-11-23 23:14:27,057 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1900 transitions. Word has length 457 [2024-11-23 23:14:27,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:14:27,058 INFO L471 AbstractCegarLoop]: Abstraction has 1131 states and 1900 transitions. [2024-11-23 23:14:27,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-23 23:14:27,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1900 transitions. [2024-11-23 23:14:27,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-23 23:14:27,066 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:27,067 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:27,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:14:27,067 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:27,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:27,068 INFO L85 PathProgramCache]: Analyzing trace with hash -73039704, now seen corresponding path program 1 times [2024-11-23 23:14:27,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:14:27,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276387158] [2024-11-23 23:14:27,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:27,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:14:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:28,639 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-23 23:14:28,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:14:28,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276387158] [2024-11-23 23:14:28,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276387158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:14:28,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:14:28,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:14:28,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843986763] [2024-11-23 23:14:28,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:14:28,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:14:28,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:14:28,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:14:28,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:14:28,644 INFO L87 Difference]: Start difference. First operand 1131 states and 1900 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-23 23:14:29,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:14:29,985 INFO L93 Difference]: Finished difference Result 3310 states and 5559 transitions. [2024-11-23 23:14:29,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:14:29,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 457 [2024-11-23 23:14:29,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:14:30,012 INFO L225 Difference]: With dead ends: 3310 [2024-11-23 23:14:30,013 INFO L226 Difference]: Without dead ends: 2853 [2024-11-23 23:14:30,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:14:30,016 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 1147 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:14:30,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 1490 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:14:30,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2024-11-23 23:14:30,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 2125. [2024-11-23 23:14:30,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2125 states, 1550 states have (on average 1.5819354838709678) internal successors, (2452), 1556 states have internal predecessors, (2452), 560 states have call successors, (560), 14 states have call predecessors, (560), 14 states have return successors, (560), 554 states have call predecessors, (560), 560 states have call successors, (560) [2024-11-23 23:14:30,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2125 states to 2125 states and 3572 transitions. [2024-11-23 23:14:30,463 INFO L78 Accepts]: Start accepts. Automaton has 2125 states and 3572 transitions. Word has length 457 [2024-11-23 23:14:30,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:14:30,464 INFO L471 AbstractCegarLoop]: Abstraction has 2125 states and 3572 transitions. [2024-11-23 23:14:30,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-23 23:14:30,465 INFO L276 IsEmpty]: Start isEmpty. Operand 2125 states and 3572 transitions. [2024-11-23 23:14:30,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-23 23:14:30,470 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:30,470 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:30,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:14:30,471 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:30,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:30,472 INFO L85 PathProgramCache]: Analyzing trace with hash -2101625814, now seen corresponding path program 1 times [2024-11-23 23:14:30,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:14:30,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546664777] [2024-11-23 23:14:30,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:30,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:14:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:31,959 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 51 proven. 162 refuted. 0 times theorem prover too weak. 10011 trivial. 0 not checked. [2024-11-23 23:14:31,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:14:31,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546664777] [2024-11-23 23:14:31,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546664777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:14:31,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613798723] [2024-11-23 23:14:31,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:31,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:14:31,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:14:31,963 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:14:31,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:14:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:32,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-23 23:14:32,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:14:35,562 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 3786 proven. 330 refuted. 0 times theorem prover too weak. 6108 trivial. 0 not checked. [2024-11-23 23:14:35,562 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:14:37,112 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 90 proven. 333 refuted. 0 times theorem prover too weak. 9801 trivial. 0 not checked. [2024-11-23 23:14:37,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613798723] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:14:37,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:14:37,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 11] total 20 [2024-11-23 23:14:37,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250408800] [2024-11-23 23:14:37,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:14:37,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-23 23:14:37,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:14:37,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-23 23:14:37,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:14:37,119 INFO L87 Difference]: Start difference. First operand 2125 states and 3572 transitions. Second operand has 20 states, 20 states have (on average 9.55) internal successors, (191), 20 states have internal predecessors, (191), 4 states have call successors, (186), 3 states have call predecessors, (186), 7 states have return successors, (188), 4 states have call predecessors, (188), 4 states have call successors, (188) [2024-11-23 23:14:43,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:14:43,609 INFO L93 Difference]: Finished difference Result 4406 states and 7195 transitions. [2024-11-23 23:14:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-23 23:14:43,610 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 9.55) internal successors, (191), 20 states have internal predecessors, (191), 4 states have call successors, (186), 3 states have call predecessors, (186), 7 states have return successors, (188), 4 states have call predecessors, (188), 4 states have call successors, (188) Word has length 457 [2024-11-23 23:14:43,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:14:43,631 INFO L225 Difference]: With dead ends: 4406 [2024-11-23 23:14:43,632 INFO L226 Difference]: Without dead ends: 2525 [2024-11-23 23:14:43,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 982 GetRequests, 904 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1700 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1373, Invalid=4633, Unknown=0, NotChecked=0, Total=6006 [2024-11-23 23:14:43,642 INFO L435 NwaCegarLoop]: 871 mSDtfsCounter, 1586 mSDsluCounter, 2965 mSDsCounter, 0 mSdLazyCounter, 3332 mSolverCounterSat, 775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 3836 SdHoareTripleChecker+Invalid, 4107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 775 IncrementalHoareTripleChecker+Valid, 3332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:14:43,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 3836 Invalid, 4107 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [775 Valid, 3332 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 23:14:43,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2525 states. [2024-11-23 23:14:44,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2525 to 2291. [2024-11-23 23:14:44,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2291 states, 1566 states have (on average 1.4923371647509578) internal successors, (2337), 1572 states have internal predecessors, (2337), 680 states have call successors, (680), 44 states have call predecessors, (680), 44 states have return successors, (680), 674 states have call predecessors, (680), 680 states have call successors, (680) [2024-11-23 23:14:44,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3697 transitions. [2024-11-23 23:14:44,062 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3697 transitions. Word has length 457 [2024-11-23 23:14:44,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:14:44,063 INFO L471 AbstractCegarLoop]: Abstraction has 2291 states and 3697 transitions. [2024-11-23 23:14:44,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.55) internal successors, (191), 20 states have internal predecessors, (191), 4 states have call successors, (186), 3 states have call predecessors, (186), 7 states have return successors, (188), 4 states have call predecessors, (188), 4 states have call successors, (188) [2024-11-23 23:14:44,064 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3697 transitions. [2024-11-23 23:14:44,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-23 23:14:44,068 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:44,069 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:44,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:14:44,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-23 23:14:44,273 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:44,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:44,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1711982988, now seen corresponding path program 1 times [2024-11-23 23:14:44,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:14:44,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608874250] [2024-11-23 23:14:44,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:44,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:14:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:45,310 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 57 proven. 156 refuted. 0 times theorem prover too weak. 10011 trivial. 0 not checked. [2024-11-23 23:14:45,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:14:45,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608874250] [2024-11-23 23:14:45,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608874250] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:14:45,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15876227] [2024-11-23 23:14:45,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:45,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:14:45,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:14:45,314 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:14:45,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:14:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:45,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:14:45,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:14:46,726 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 4061 proven. 156 refuted. 0 times theorem prover too weak. 6007 trivial. 0 not checked. [2024-11-23 23:14:46,726 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:14:47,495 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 57 proven. 156 refuted. 0 times theorem prover too weak. 10011 trivial. 0 not checked. [2024-11-23 23:14:47,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15876227] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:14:47,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:14:47,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-23 23:14:47,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107589144] [2024-11-23 23:14:47,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:14:47,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:14:47,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:14:47,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:14:47,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:14:47,499 INFO L87 Difference]: Start difference. First operand 2291 states and 3697 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2024-11-23 23:14:48,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:14:48,384 INFO L93 Difference]: Finished difference Result 4457 states and 7111 transitions. [2024-11-23 23:14:48,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:14:48,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) Word has length 459 [2024-11-23 23:14:48,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:14:48,410 INFO L225 Difference]: With dead ends: 4457 [2024-11-23 23:14:48,410 INFO L226 Difference]: Without dead ends: 2399 [2024-11-23 23:14:48,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 925 GetRequests, 915 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:14:48,423 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 285 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:14:48,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 609 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:14:48,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2024-11-23 23:14:48,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 2323. [2024-11-23 23:14:48,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2323 states, 1590 states have (on average 1.4748427672955975) internal successors, (2345), 1596 states have internal predecessors, (2345), 680 states have call successors, (680), 52 states have call predecessors, (680), 52 states have return successors, (680), 674 states have call predecessors, (680), 680 states have call successors, (680) [2024-11-23 23:14:48,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2323 states to 2323 states and 3705 transitions. [2024-11-23 23:14:48,873 INFO L78 Accepts]: Start accepts. Automaton has 2323 states and 3705 transitions. Word has length 459 [2024-11-23 23:14:48,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:14:48,876 INFO L471 AbstractCegarLoop]: Abstraction has 2323 states and 3705 transitions. [2024-11-23 23:14:48,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2024-11-23 23:14:48,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2323 states and 3705 transitions. [2024-11-23 23:14:48,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-23 23:14:48,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:48,881 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:48,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 23:14:49,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-23 23:14:49,086 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:49,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:49,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2106349774, now seen corresponding path program 1 times [2024-11-23 23:14:49,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:14:49,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976048743] [2024-11-23 23:14:49,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:49,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:14:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:49,765 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 174 proven. 39 refuted. 0 times theorem prover too weak. 10011 trivial. 0 not checked. [2024-11-23 23:14:49,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:14:49,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976048743] [2024-11-23 23:14:49,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976048743] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:14:49,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539830601] [2024-11-23 23:14:49,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:49,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:14:49,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:14:49,773 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:14:49,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:14:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:14:50,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-23 23:14:50,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:14:54,343 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 4302 proven. 459 refuted. 0 times theorem prover too weak. 5463 trivial. 0 not checked. [2024-11-23 23:14:54,344 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:14:56,581 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 162 proven. 468 refuted. 0 times theorem prover too weak. 9594 trivial. 0 not checked. [2024-11-23 23:14:56,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539830601] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:14:56,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:14:56,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12, 13] total 27 [2024-11-23 23:14:56,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80970094] [2024-11-23 23:14:56,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:14:56,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-23 23:14:56,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:14:56,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-23 23:14:56,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2024-11-23 23:14:56,587 INFO L87 Difference]: Start difference. First operand 2323 states and 3705 transitions. Second operand has 27 states, 27 states have (on average 9.518518518518519) internal successors, (257), 27 states have internal predecessors, (257), 9 states have call successors, (198), 5 states have call predecessors, (198), 12 states have return successors, (199), 9 states have call predecessors, (199), 9 states have call successors, (199) [2024-11-23 23:14:59,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:14:59,169 INFO L93 Difference]: Finished difference Result 4657 states and 7323 transitions. [2024-11-23 23:14:59,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-23 23:14:59,170 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 9.518518518518519) internal successors, (257), 27 states have internal predecessors, (257), 9 states have call successors, (198), 5 states have call predecessors, (198), 12 states have return successors, (199), 9 states have call predecessors, (199), 9 states have call successors, (199) Word has length 459 [2024-11-23 23:14:59,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:14:59,192 INFO L225 Difference]: With dead ends: 4657 [2024-11-23 23:14:59,192 INFO L226 Difference]: Without dead ends: 2485 [2024-11-23 23:14:59,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 943 GetRequests, 897 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=641, Invalid=1615, Unknown=0, NotChecked=0, Total=2256 [2024-11-23 23:14:59,203 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 1093 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:14:59,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 1032 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 23:14:59,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2485 states. [2024-11-23 23:14:59,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2485 to 1419. [2024-11-23 23:14:59,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1419 states, 984 states have (on average 1.4390243902439024) internal successors, (1416), 988 states have internal predecessors, (1416), 392 states have call successors, (392), 42 states have call predecessors, (392), 42 states have return successors, (392), 388 states have call predecessors, (392), 392 states have call successors, (392) [2024-11-23 23:14:59,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 2200 transitions. [2024-11-23 23:14:59,619 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 2200 transitions. Word has length 459 [2024-11-23 23:14:59,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:14:59,620 INFO L471 AbstractCegarLoop]: Abstraction has 1419 states and 2200 transitions. [2024-11-23 23:14:59,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.518518518518519) internal successors, (257), 27 states have internal predecessors, (257), 9 states have call successors, (198), 5 states have call predecessors, (198), 12 states have return successors, (199), 9 states have call predecessors, (199), 9 states have call successors, (199) [2024-11-23 23:14:59,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 2200 transitions. [2024-11-23 23:14:59,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-23 23:14:59,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:14:59,625 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:14:59,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 23:14:59,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-23 23:14:59,829 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:14:59,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:14:59,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1684905010, now seen corresponding path program 1 times [2024-11-23 23:14:59,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:14:59,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278013562] [2024-11-23 23:14:59,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:14:59,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:14:59,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:00,199 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-23 23:15:00,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:00,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278013562] [2024-11-23 23:15:00,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278013562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:00,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:00,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:15:00,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457972494] [2024-11-23 23:15:00,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:00,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:15:00,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:00,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:15:00,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:15:00,204 INFO L87 Difference]: Start difference. First operand 1419 states and 2200 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-23 23:15:00,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:00,501 INFO L93 Difference]: Finished difference Result 2663 states and 4137 transitions. [2024-11-23 23:15:00,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:15:00,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 459 [2024-11-23 23:15:00,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:00,520 INFO L225 Difference]: With dead ends: 2663 [2024-11-23 23:15:00,520 INFO L226 Difference]: Without dead ends: 1419 [2024-11-23 23:15:00,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:15:00,525 INFO L435 NwaCegarLoop]: 314 mSDtfsCounter, 196 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:00,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 314 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:15:00,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2024-11-23 23:15:00,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1419. [2024-11-23 23:15:00,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1419 states, 984 states have (on average 1.4298780487804879) internal successors, (1407), 988 states have internal predecessors, (1407), 392 states have call successors, (392), 42 states have call predecessors, (392), 42 states have return successors, (392), 388 states have call predecessors, (392), 392 states have call successors, (392) [2024-11-23 23:15:00,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 2191 transitions. [2024-11-23 23:15:00,845 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 2191 transitions. Word has length 459 [2024-11-23 23:15:00,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:00,846 INFO L471 AbstractCegarLoop]: Abstraction has 1419 states and 2191 transitions. [2024-11-23 23:15:00,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-23 23:15:00,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 2191 transitions. [2024-11-23 23:15:00,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-23 23:15:00,852 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:00,852 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:00,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:15:00,852 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:00,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:00,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1325684245, now seen corresponding path program 1 times [2024-11-23 23:15:00,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:00,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538299507] [2024-11-23 23:15:00,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:00,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:05,511 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 225 proven. 195 refuted. 0 times theorem prover too weak. 9804 trivial. 0 not checked. [2024-11-23 23:15:05,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:05,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538299507] [2024-11-23 23:15:05,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538299507] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:15:05,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383271577] [2024-11-23 23:15:05,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:05,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:15:05,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:15:05,514 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:15:05,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:15:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:06,014 INFO L256 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-23 23:15:06,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:15:15,068 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 6332 proven. 324 refuted. 0 times theorem prover too weak. 3568 trivial. 0 not checked. [2024-11-23 23:15:15,069 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:15:25,148 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 372 proven. 258 refuted. 0 times theorem prover too weak. 9594 trivial. 0 not checked. [2024-11-23 23:15:25,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383271577] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:15:25,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:15:25,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 21, 19] total 45 [2024-11-23 23:15:25,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719676059] [2024-11-23 23:15:25,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:15:25,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-23 23:15:25,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:25,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-23 23:15:25,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=1651, Unknown=0, NotChecked=0, Total=1980 [2024-11-23 23:15:25,155 INFO L87 Difference]: Start difference. First operand 1419 states and 2191 transitions. Second operand has 45 states, 44 states have (on average 5.4772727272727275) internal successors, (241), 45 states have internal predecessors, (241), 11 states have call successors, (142), 5 states have call predecessors, (142), 12 states have return successors, (143), 11 states have call predecessors, (143), 11 states have call successors, (143) [2024-11-23 23:16:47,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:16:52,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:16:56,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:07,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:15,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:20,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:24,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:17:29,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:18:58,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:18:58,208 INFO L93 Difference]: Finished difference Result 55787 states and 80683 transitions. [2024-11-23 23:18:58,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 362 states. [2024-11-23 23:18:58,209 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 5.4772727272727275) internal successors, (241), 45 states have internal predecessors, (241), 11 states have call successors, (142), 5 states have call predecessors, (142), 12 states have return successors, (143), 11 states have call predecessors, (143), 11 states have call successors, (143) Word has length 460 [2024-11-23 23:18:58,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:18:58,556 INFO L225 Difference]: With dead ends: 55787 [2024-11-23 23:18:58,556 INFO L226 Difference]: Without dead ends: 54630 [2024-11-23 23:18:58,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1349 GetRequests, 956 SyntacticMatches, 0 SemanticMatches, 393 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67379 ImplicationChecksByTransitivity, 109.9s TimeCoverageRelationStatistics Valid=32941, Invalid=122689, Unknown=0, NotChecked=0, Total=155630 [2024-11-23 23:18:58,620 INFO L435 NwaCegarLoop]: 871 mSDtfsCounter, 12732 mSDsluCounter, 8847 mSDsCounter, 0 mSdLazyCounter, 10414 mSolverCounterSat, 8530 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12768 SdHoareTripleChecker+Valid, 9718 SdHoareTripleChecker+Invalid, 18952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 8530 IncrementalHoareTripleChecker+Valid, 10414 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:18:58,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12768 Valid, 9718 Invalid, 18952 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [8530 Valid, 10414 Invalid, 8 Unknown, 0 Unchecked, 84.6s Time] [2024-11-23 23:18:58,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54630 states. [2024-11-23 23:19:02,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54630 to 7079. [2024-11-23 23:19:02,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7079 states, 5913 states have (on average 1.5342465753424657) internal successors, (9072), 5941 states have internal predecessors, (9072), 992 states have call successors, (992), 173 states have call predecessors, (992), 173 states have return successors, (992), 964 states have call predecessors, (992), 992 states have call successors, (992) [2024-11-23 23:19:02,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7079 states to 7079 states and 11056 transitions. [2024-11-23 23:19:02,563 INFO L78 Accepts]: Start accepts. Automaton has 7079 states and 11056 transitions. Word has length 460 [2024-11-23 23:19:02,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:19:02,564 INFO L471 AbstractCegarLoop]: Abstraction has 7079 states and 11056 transitions. [2024-11-23 23:19:02,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 5.4772727272727275) internal successors, (241), 45 states have internal predecessors, (241), 11 states have call successors, (142), 5 states have call predecessors, (142), 12 states have return successors, (143), 11 states have call predecessors, (143), 11 states have call successors, (143) [2024-11-23 23:19:02,565 INFO L276 IsEmpty]: Start isEmpty. Operand 7079 states and 11056 transitions. [2024-11-23 23:19:02,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-23 23:19:02,572 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:19:02,573 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:19:02,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-23 23:19:02,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:19:02,778 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:19:02,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:19:02,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1123915885, now seen corresponding path program 1 times [2024-11-23 23:19:02,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:19:02,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330324067] [2024-11-23 23:19:02,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:19:02,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:19:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:19:03,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1080436336] [2024-11-23 23:19:03,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:19:03,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:19:03,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:19:03,171 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:19:03,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed05b8-6116-484b-be13-a134b9bb9af7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 23:19:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:19:03,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 1043 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 23:19:03,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:19:15,881 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 6219 proven. 195 refuted. 0 times theorem prover too weak. 3810 trivial. 0 not checked. [2024-11-23 23:19:15,881 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:19:17,427 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 99 proven. 114 refuted. 0 times theorem prover too weak. 10011 trivial. 0 not checked. [2024-11-23 23:19:17,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:19:17,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330324067] [2024-11-23 23:19:17,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:19:17,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080436336] [2024-11-23 23:19:17,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080436336] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:19:17,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:19:17,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 18 [2024-11-23 23:19:17,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403428857] [2024-11-23 23:19:17,429 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:19:17,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 23:19:17,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:19:17,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 23:19:17,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=229, Unknown=2, NotChecked=0, Total=306 [2024-11-23 23:19:17,431 INFO L87 Difference]: Start difference. First operand 7079 states and 11056 transitions. Second operand has 18 states, 18 states have (on average 11.333333333333334) internal successors, (204), 18 states have internal predecessors, (204), 5 states have call successors, (144), 4 states have call predecessors, (144), 7 states have return successors, (144), 5 states have call predecessors, (144), 5 states have call successors, (144) [2024-11-23 23:19:25,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:19:29,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:19:33,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Real, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:19:37,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:19:46,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:19:48,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:19:52,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:19:56,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:20:00,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:20:05,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:20:09,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:20:13,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:20:17,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:20:21,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:20:25,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:20:30,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:20:34,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:20:38,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:20:42,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:20:46,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:20:50,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:20:54,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:20:58,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:21:01,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:21:05,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:21:09,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:21:11,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:21:15,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:21:19,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:21:23,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:21:28,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:21:32,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:21:36,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:21:40,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:21:44,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:21:48,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:21:52,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:21:56,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:22:00,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:22:04,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:22:08,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:22:12,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:22:16,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:22:51,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:22:55,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:23:00,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:23:08,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:23:12,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:23:17,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Real, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:23:21,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:23:25,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:23:29,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:23:33,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:23:38,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:23:42,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Real, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:23:46,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:23:50,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:23:54,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:23:58,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:24:02,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:24:06,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:24:10,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:24:15,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:24:19,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:24:23,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:24:27,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:24:31,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:24:35,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:24:39,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:24:43,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:24:47,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:24:51,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:24:55,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:24:59,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:25:03,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:25:07,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:25:11,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:25:15,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:25:20,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:25:24,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:25:28,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:25:32,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:25:36,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:25:40,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:25:44,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:25:48,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:25:52,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:25:56,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:26:00,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:26:01,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:26:05,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:26:10,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Real, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:26:18,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:26:22,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:26:26,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:26:33,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:26:37,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:26:41,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:26:45,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:26:49,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:26:53,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:26:57,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:27:01,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:27:05,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:27:07,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:27:10,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:27:14,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Real, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:27:18,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Real, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:27:22,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Real, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:27:26,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:27:30,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:27:34,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:27:38,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]