./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e62b2891163903ae3ee64b4d61486cfcc5cc9524351bb686ca581fbf5cc2640 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:07:26,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:07:26,311 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:07:26,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:07:26,317 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:07:26,339 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:07:26,340 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:07:26,340 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:07:26,341 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:07:26,341 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:07:26,341 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:07:26,341 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:07:26,342 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:07:26,342 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:07:26,342 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:07:26,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:07:26,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:07:26,343 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:07:26,343 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:07:26,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:07:26,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:07:26,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:07:26,343 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:07:26,343 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:07:26,344 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:07:26,344 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:07:26,344 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:07:26,344 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:07:26,344 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:07:26,344 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:26,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:26,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:26,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:26,345 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:07:26,345 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:26,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:26,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:26,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:26,346 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:07:26,346 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:07:26,346 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:07:26,346 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:07:26,346 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:07:26,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:07:26,346 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:07:26,346 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:07:26,346 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:07:26,346 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:07:26,346 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_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e62b2891163903ae3ee64b4d61486cfcc5cc9524351bb686ca581fbf5cc2640 [2024-11-28 02:07:26,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:07:26,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:07:26,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:07:26,696 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:07:26,696 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:07:26,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i [2024-11-28 02:07:29,797 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/data/0b312bba0/b094033928c54aed8241e1a160ef90f1/FLAG0dd4b841d [2024-11-28 02:07:30,085 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:07:30,086 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i [2024-11-28 02:07:30,097 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/data/0b312bba0/b094033928c54aed8241e1a160ef90f1/FLAG0dd4b841d [2024-11-28 02:07:30,120 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/data/0b312bba0/b094033928c54aed8241e1a160ef90f1 [2024-11-28 02:07:30,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:07:30,125 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:07:30,127 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:30,128 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:07:30,133 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:07:30,134 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:30" (1/1) ... [2024-11-28 02:07:30,138 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ddea010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:30, skipping insertion in model container [2024-11-28 02:07:30,138 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:30" (1/1) ... [2024-11-28 02:07:30,168 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:30,348 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_0a06429e-ec58-4157-8f20-f556e651320f/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i[919,932] [2024-11-28 02:07:30,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:30,480 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:07:30,493 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_0a06429e-ec58-4157-8f20-f556e651320f/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i[919,932] [2024-11-28 02:07:30,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:30,558 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:07:30,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:30 WrapperNode [2024-11-28 02:07:30,558 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:30,559 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:30,560 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:07:30,560 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:07:30,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:30" (1/1) ... [2024-11-28 02:07:30,575 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:30" (1/1) ... [2024-11-28 02:07:30,644 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 235 [2024-11-28 02:07:30,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:30,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:07:30,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:07:30,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:07:30,657 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:30" (1/1) ... [2024-11-28 02:07:30,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:30" (1/1) ... [2024-11-28 02:07:30,661 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:30" (1/1) ... [2024-11-28 02:07:30,681 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:07:30,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:30" (1/1) ... [2024-11-28 02:07:30,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:30" (1/1) ... [2024-11-28 02:07:30,695 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:30" (1/1) ... [2024-11-28 02:07:30,697 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:30" (1/1) ... [2024-11-28 02:07:30,702 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:30" (1/1) ... [2024-11-28 02:07:30,704 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:30" (1/1) ... [2024-11-28 02:07:30,706 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:30" (1/1) ... [2024-11-28 02:07:30,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:07:30,713 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:07:30,713 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:07:30,713 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:07:30,714 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:30" (1/1) ... [2024-11-28 02:07:30,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:30,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:30,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:07:30,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:07:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:07:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:07:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:07:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:07:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:07:30,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:07:30,910 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:07:30,913 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:07:31,480 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-28 02:07:31,481 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:07:31,492 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:07:31,492 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:07:31,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:31 BoogieIcfgContainer [2024-11-28 02:07:31,493 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:07:31,495 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:07:31,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:07:31,500 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:07:31,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:07:30" (1/3) ... [2024-11-28 02:07:31,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee8e3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:31, skipping insertion in model container [2024-11-28 02:07:31,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:30" (2/3) ... [2024-11-28 02:07:31,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee8e3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:31, skipping insertion in model container [2024-11-28 02:07:31,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:31" (3/3) ... [2024-11-28 02:07:31,503 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i [2024-11-28 02:07:31,519 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:07:31,521 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i that has 2 procedures, 97 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:07:31,595 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:31,610 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;@802ecf1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:31,610 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:07:31,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 67 states have (on average 1.492537313432836) internal successors, (100), 68 states have internal predecessors, (100), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 02:07:31,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-28 02:07:31,635 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:31,637 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:31,638 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:31,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:31,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1953080171, now seen corresponding path program 1 times [2024-11-28 02:07:31,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:31,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3340186] [2024-11-28 02:07:31,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:31,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:32,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2024-11-28 02:07:32,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:32,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3340186] [2024-11-28 02:07:32,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3340186] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:32,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072865063] [2024-11-28 02:07:32,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:32,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:32,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:32,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:32,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:07:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:32,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:07:32,381 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:32,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2024-11-28 02:07:32,426 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:32,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072865063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:32,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:07:32,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:07:32,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629685818] [2024-11-28 02:07:32,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:32,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:07:32,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:32,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:07:32,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:32,470 INFO L87 Difference]: Start difference. First operand has 97 states, 67 states have (on average 1.492537313432836) internal successors, (100), 68 states have internal predecessors, (100), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 02:07:32,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:32,520 INFO L93 Difference]: Finished difference Result 187 states and 329 transitions. [2024-11-28 02:07:32,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:07:32,522 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 174 [2024-11-28 02:07:32,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:32,530 INFO L225 Difference]: With dead ends: 187 [2024-11-28 02:07:32,530 INFO L226 Difference]: Without dead ends: 93 [2024-11-28 02:07:32,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:32,537 INFO L435 NwaCegarLoop]: 146 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, 146 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:32,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:32,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-28 02:07:32,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-28 02:07:32,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 64 states have (on average 1.4375) internal successors, (92), 64 states have internal predecessors, (92), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 02:07:32,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 146 transitions. [2024-11-28 02:07:32,596 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 146 transitions. Word has length 174 [2024-11-28 02:07:32,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:32,597 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 146 transitions. [2024-11-28 02:07:32,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 02:07:32,597 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 146 transitions. [2024-11-28 02:07:32,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-28 02:07:32,601 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:32,601 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:32,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:07:32,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 02:07:32,806 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:32,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:32,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1318480109, now seen corresponding path program 1 times [2024-11-28 02:07:32,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:32,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459018140] [2024-11-28 02:07:32,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:32,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:33,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:07:33,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:33,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459018140] [2024-11-28 02:07:33,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459018140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:33,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:33,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:33,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651828660] [2024-11-28 02:07:33,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:33,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:33,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:33,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:33,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:33,387 INFO L87 Difference]: Start difference. First operand 93 states and 146 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:07:33,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:33,449 INFO L93 Difference]: Finished difference Result 184 states and 291 transitions. [2024-11-28 02:07:33,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:33,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-28 02:07:33,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:33,452 INFO L225 Difference]: With dead ends: 184 [2024-11-28 02:07:33,452 INFO L226 Difference]: Without dead ends: 94 [2024-11-28 02:07:33,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:33,457 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 284 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 [2024-11-28 02:07:33,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 284 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:33,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-28 02:07:33,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-28 02:07:33,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 65 states have (on average 1.4307692307692308) internal successors, (93), 65 states have internal predecessors, (93), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 02:07:33,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 147 transitions. [2024-11-28 02:07:33,477 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 147 transitions. Word has length 174 [2024-11-28 02:07:33,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:33,482 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 147 transitions. [2024-11-28 02:07:33,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:07:33,482 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 147 transitions. [2024-11-28 02:07:33,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-28 02:07:33,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:33,488 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:33,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:07:33,488 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:33,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:33,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1696623509, now seen corresponding path program 1 times [2024-11-28 02:07:33,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:33,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017386286] [2024-11-28 02:07:33,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:33,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:34,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:07:34,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:34,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017386286] [2024-11-28 02:07:34,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017386286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:34,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:34,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:34,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483066497] [2024-11-28 02:07:34,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:34,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:07:34,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:34,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:07:34,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:34,038 INFO L87 Difference]: Start difference. First operand 94 states and 147 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:07:34,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:34,451 INFO L93 Difference]: Finished difference Result 277 states and 436 transitions. [2024-11-28 02:07:34,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:07:34,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-28 02:07:34,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:34,456 INFO L225 Difference]: With dead ends: 277 [2024-11-28 02:07:34,456 INFO L226 Difference]: Without dead ends: 186 [2024-11-28 02:07:34,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:07:34,458 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 149 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:34,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 457 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:07:34,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-28 02:07:34,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 167. [2024-11-28 02:07:34,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 110 states have (on average 1.4) internal successors, (154), 110 states have internal predecessors, (154), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-28 02:07:34,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 262 transitions. [2024-11-28 02:07:34,503 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 262 transitions. Word has length 174 [2024-11-28 02:07:34,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:34,504 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 262 transitions. [2024-11-28 02:07:34,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:07:34,506 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 262 transitions. [2024-11-28 02:07:34,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-28 02:07:34,508 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:34,508 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:34,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:07:34,509 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:34,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:34,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2119325335, now seen corresponding path program 1 times [2024-11-28 02:07:34,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:34,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665976261] [2024-11-28 02:07:34,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:34,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:34,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:07:34,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:34,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665976261] [2024-11-28 02:07:34,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665976261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:34,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:34,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:34,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783038874] [2024-11-28 02:07:34,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:34,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:34,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:34,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:34,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:34,909 INFO L87 Difference]: Start difference. First operand 167 states and 262 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:07:34,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:34,962 INFO L93 Difference]: Finished difference Result 380 states and 599 transitions. [2024-11-28 02:07:34,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:34,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-28 02:07:34,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:34,968 INFO L225 Difference]: With dead ends: 380 [2024-11-28 02:07:34,972 INFO L226 Difference]: Without dead ends: 264 [2024-11-28 02:07:34,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:34,973 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 98 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:34,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 319 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:34,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-28 02:07:35,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2024-11-28 02:07:35,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 177 states have (on average 1.4124293785310735) internal successors, (250), 177 states have internal predecessors, (250), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-28 02:07:35,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 412 transitions. [2024-11-28 02:07:35,035 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 412 transitions. Word has length 174 [2024-11-28 02:07:35,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:35,036 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 412 transitions. [2024-11-28 02:07:35,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:07:35,038 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 412 transitions. [2024-11-28 02:07:35,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-28 02:07:35,040 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:35,041 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:35,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:07:35,041 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:35,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:35,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1301676885, now seen corresponding path program 1 times [2024-11-28 02:07:35,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:35,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472443703] [2024-11-28 02:07:35,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:35,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:42,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:07:42,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:42,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472443703] [2024-11-28 02:07:42,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472443703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:42,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:42,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 02:07:42,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158539203] [2024-11-28 02:07:42,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:42,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 02:07:42,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:42,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 02:07:42,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:07:42,538 INFO L87 Difference]: Start difference. First operand 262 states and 412 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:07:44,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:44,223 INFO L93 Difference]: Finished difference Result 590 states and 921 transitions. [2024-11-28 02:07:44,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:07:44,225 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-28 02:07:44,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:44,229 INFO L225 Difference]: With dead ends: 590 [2024-11-28 02:07:44,229 INFO L226 Difference]: Without dead ends: 382 [2024-11-28 02:07:44,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2024-11-28 02:07:44,231 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 483 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:44,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 1033 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:07:44,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-28 02:07:44,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 300. [2024-11-28 02:07:44,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 215 states have (on average 1.427906976744186) internal successors, (307), 215 states have internal predecessors, (307), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-28 02:07:44,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 469 transitions. [2024-11-28 02:07:44,272 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 469 transitions. Word has length 174 [2024-11-28 02:07:44,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:44,273 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 469 transitions. [2024-11-28 02:07:44,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:07:44,273 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 469 transitions. [2024-11-28 02:07:44,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-28 02:07:44,276 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:44,276 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:44,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:07:44,276 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:44,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:44,279 INFO L85 PathProgramCache]: Analyzing trace with hash 290559635, now seen corresponding path program 1 times [2024-11-28 02:07:44,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:44,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97494476] [2024-11-28 02:07:44,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:44,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:44,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:07:44,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:44,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97494476] [2024-11-28 02:07:44,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97494476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:44,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:44,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:44,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344066860] [2024-11-28 02:07:44,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:44,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:44,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:44,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:44,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:44,389 INFO L87 Difference]: Start difference. First operand 300 states and 469 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:07:44,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:44,472 INFO L93 Difference]: Finished difference Result 589 states and 927 transitions. [2024-11-28 02:07:44,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:44,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-28 02:07:44,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:44,476 INFO L225 Difference]: With dead ends: 589 [2024-11-28 02:07:44,476 INFO L226 Difference]: Without dead ends: 400 [2024-11-28 02:07:44,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:44,480 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 138 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:44,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 330 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:07:44,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-28 02:07:44,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 398. [2024-11-28 02:07:44,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 285 states have (on average 1.4140350877192982) internal successors, (403), 285 states have internal predecessors, (403), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:07:44,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 619 transitions. [2024-11-28 02:07:44,534 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 619 transitions. Word has length 174 [2024-11-28 02:07:44,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:44,535 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 619 transitions. [2024-11-28 02:07:44,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:07:44,535 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 619 transitions. [2024-11-28 02:07:44,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 02:07:44,537 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:44,538 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:44,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:07:44,538 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:44,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:44,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1225399612, now seen corresponding path program 1 times [2024-11-28 02:07:44,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:44,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871740736] [2024-11-28 02:07:44,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:44,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:56,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:07:56,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:56,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871740736] [2024-11-28 02:07:56,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871740736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:56,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:56,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 02:07:56,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285059042] [2024-11-28 02:07:56,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:56,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 02:07:56,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:56,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 02:07:56,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:07:56,679 INFO L87 Difference]: Start difference. First operand 398 states and 619 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:08:01,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:01,941 INFO L93 Difference]: Finished difference Result 463 states and 706 transitions. [2024-11-28 02:08:01,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 02:08:01,942 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-28 02:08:01,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:01,945 INFO L225 Difference]: With dead ends: 463 [2024-11-28 02:08:01,946 INFO L226 Difference]: Without dead ends: 461 [2024-11-28 02:08:01,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=188, Invalid=568, Unknown=0, NotChecked=0, Total=756 [2024-11-28 02:08:01,948 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 671 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:01,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 972 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 02:08:01,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-28 02:08:02,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 399. [2024-11-28 02:08:02,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 286 states have (on average 1.4125874125874125) internal successors, (404), 286 states have internal predecessors, (404), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:08:02,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 620 transitions. [2024-11-28 02:08:02,017 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 620 transitions. Word has length 175 [2024-11-28 02:08:02,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:02,018 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 620 transitions. [2024-11-28 02:08:02,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:08:02,018 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 620 transitions. [2024-11-28 02:08:02,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 02:08:02,026 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:02,026 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:02,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:08:02,026 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:02,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:02,027 INFO L85 PathProgramCache]: Analyzing trace with hash 787655146, now seen corresponding path program 1 times [2024-11-28 02:08:02,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:02,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898947622] [2024-11-28 02:08:02,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:02,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:02,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:08:02,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:02,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898947622] [2024-11-28 02:08:02,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898947622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:02,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:02,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:08:02,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69409940] [2024-11-28 02:08:02,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:02,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:08:02,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:02,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:08:02,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:08:02,300 INFO L87 Difference]: Start difference. First operand 399 states and 620 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:08:02,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:02,404 INFO L93 Difference]: Finished difference Result 716 states and 1108 transitions. [2024-11-28 02:08:02,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:08:02,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-28 02:08:02,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:02,410 INFO L225 Difference]: With dead ends: 716 [2024-11-28 02:08:02,410 INFO L226 Difference]: Without dead ends: 429 [2024-11-28 02:08:02,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:08:02,413 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 56 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:02,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 403 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:08:02,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-28 02:08:02,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 411. [2024-11-28 02:08:02,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 295 states have (on average 1.3864406779661016) internal successors, (409), 295 states have internal predecessors, (409), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:08:02,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 625 transitions. [2024-11-28 02:08:02,465 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 625 transitions. Word has length 175 [2024-11-28 02:08:02,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:02,469 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 625 transitions. [2024-11-28 02:08:02,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:08:02,469 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 625 transitions. [2024-11-28 02:08:02,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 02:08:02,472 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:02,472 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:02,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:08:02,473 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:02,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:02,476 INFO L85 PathProgramCache]: Analyzing trace with hash -21691480, now seen corresponding path program 1 times [2024-11-28 02:08:02,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:02,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669545923] [2024-11-28 02:08:02,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:02,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:07,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:08:07,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:07,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669545923] [2024-11-28 02:08:07,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669545923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:07,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:07,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 02:08:07,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957408121] [2024-11-28 02:08:07,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:07,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 02:08:07,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:07,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 02:08:07,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-28 02:08:07,444 INFO L87 Difference]: Start difference. First operand 411 states and 625 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 02:08:09,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:09,460 INFO L93 Difference]: Finished difference Result 482 states and 718 transitions. [2024-11-28 02:08:09,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 02:08:09,461 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 175 [2024-11-28 02:08:09,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:09,464 INFO L225 Difference]: With dead ends: 482 [2024-11-28 02:08:09,465 INFO L226 Difference]: Without dead ends: 480 [2024-11-28 02:08:09,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=319, Invalid=941, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 02:08:09,466 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 577 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:09,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 1151 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:08:09,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-11-28 02:08:09,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 411. [2024-11-28 02:08:09,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 295 states have (on average 1.3864406779661016) internal successors, (409), 295 states have internal predecessors, (409), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:08:09,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 625 transitions. [2024-11-28 02:08:09,517 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 625 transitions. Word has length 175 [2024-11-28 02:08:09,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:09,518 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 625 transitions. [2024-11-28 02:08:09,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 02:08:09,518 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 625 transitions. [2024-11-28 02:08:09,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 02:08:09,521 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:09,521 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:09,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:08:09,522 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:09,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:09,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1110039550, now seen corresponding path program 1 times [2024-11-28 02:08:09,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:09,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884516662] [2024-11-28 02:08:09,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:09,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:18,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:08:18,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:18,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884516662] [2024-11-28 02:08:18,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884516662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:18,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:18,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 02:08:18,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702836912] [2024-11-28 02:08:18,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:18,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 02:08:18,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:18,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 02:08:18,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-28 02:08:18,107 INFO L87 Difference]: Start difference. First operand 411 states and 625 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:08:31,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:31,104 INFO L93 Difference]: Finished difference Result 507 states and 752 transitions. [2024-11-28 02:08:31,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 02:08:31,106 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-28 02:08:31,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:31,109 INFO L225 Difference]: With dead ends: 507 [2024-11-28 02:08:31,109 INFO L226 Difference]: Without dead ends: 505 [2024-11-28 02:08:31,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=322, Invalid=868, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 02:08:31,110 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 647 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:31,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 1087 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-28 02:08:31,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-28 02:08:31,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 430. [2024-11-28 02:08:31,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 314 states have (on average 1.39171974522293) internal successors, (437), 314 states have internal predecessors, (437), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:08:31,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 653 transitions. [2024-11-28 02:08:31,151 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 653 transitions. Word has length 175 [2024-11-28 02:08:31,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:31,152 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 653 transitions. [2024-11-28 02:08:31,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:08:31,152 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 653 transitions. [2024-11-28 02:08:31,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 02:08:31,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:31,154 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:31,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:08:31,154 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:31,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:31,155 INFO L85 PathProgramCache]: Analyzing trace with hash -851874112, now seen corresponding path program 1 times [2024-11-28 02:08:31,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:31,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044626548] [2024-11-28 02:08:31,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:31,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:41,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:08:41,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:41,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044626548] [2024-11-28 02:08:41,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044626548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:41,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:41,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 02:08:41,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705729836] [2024-11-28 02:08:41,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:41,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 02:08:41,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:41,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 02:08:41,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-28 02:08:41,371 INFO L87 Difference]: Start difference. First operand 430 states and 653 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:08:52,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:52,220 INFO L93 Difference]: Finished difference Result 501 states and 746 transitions. [2024-11-28 02:08:52,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 02:08:52,221 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-28 02:08:52,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:52,224 INFO L225 Difference]: With dead ends: 501 [2024-11-28 02:08:52,224 INFO L226 Difference]: Without dead ends: 499 [2024-11-28 02:08:52,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=322, Invalid=800, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 02:08:52,226 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 509 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:52,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 992 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 02:08:52,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-28 02:08:52,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 430. [2024-11-28 02:08:52,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 314 states have (on average 1.39171974522293) internal successors, (437), 314 states have internal predecessors, (437), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:08:52,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 653 transitions. [2024-11-28 02:08:52,265 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 653 transitions. Word has length 175 [2024-11-28 02:08:52,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:52,266 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 653 transitions. [2024-11-28 02:08:52,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:08:52,266 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 653 transitions. [2024-11-28 02:08:52,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 02:08:52,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:52,270 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:52,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:08:52,271 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:52,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:52,271 INFO L85 PathProgramCache]: Analyzing trace with hash 699854033, now seen corresponding path program 1 times [2024-11-28 02:08:52,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:52,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551422814] [2024-11-28 02:08:52,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:52,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:56,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:08:56,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:56,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551422814] [2024-11-28 02:08:56,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551422814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:56,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:56,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 02:08:56,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834502468] [2024-11-28 02:08:56,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:56,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 02:08:56,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:56,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 02:08:56,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:08:56,654 INFO L87 Difference]: Start difference. First operand 430 states and 653 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 02:08:59,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:59,428 INFO L93 Difference]: Finished difference Result 487 states and 726 transitions. [2024-11-28 02:08:59,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 02:08:59,429 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 176 [2024-11-28 02:08:59,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:59,432 INFO L225 Difference]: With dead ends: 487 [2024-11-28 02:08:59,432 INFO L226 Difference]: Without dead ends: 485 [2024-11-28 02:08:59,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=373, Invalid=1109, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 02:08:59,434 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 708 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:59,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 1153 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 02:08:59,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-28 02:08:59,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 427. [2024-11-28 02:08:59,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 311 states have (on average 1.392282958199357) internal successors, (433), 311 states have internal predecessors, (433), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:08:59,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 649 transitions. [2024-11-28 02:08:59,476 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 649 transitions. Word has length 176 [2024-11-28 02:08:59,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:59,477 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 649 transitions. [2024-11-28 02:08:59,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 02:08:59,478 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 649 transitions. [2024-11-28 02:08:59,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 02:08:59,480 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:59,481 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:59,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:08:59,481 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:59,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:59,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1378060533, now seen corresponding path program 1 times [2024-11-28 02:08:59,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:59,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801472645] [2024-11-28 02:08:59,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:59,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:11,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:09:11,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:09:11,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801472645] [2024-11-28 02:09:11,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801472645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:09:11,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:09:11,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 02:09:11,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263107903] [2024-11-28 02:09:11,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:09:11,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 02:09:11,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:09:11,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 02:09:11,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:09:11,860 INFO L87 Difference]: Start difference. First operand 427 states and 649 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:09:25,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:09:25,030 INFO L93 Difference]: Finished difference Result 502 states and 747 transitions. [2024-11-28 02:09:25,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 02:09:25,031 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-28 02:09:25,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:09:25,034 INFO L225 Difference]: With dead ends: 502 [2024-11-28 02:09:25,034 INFO L226 Difference]: Without dead ends: 500 [2024-11-28 02:09:25,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=357, Invalid=975, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 02:09:25,036 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 671 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:09:25,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 925 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 02:09:25,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-11-28 02:09:25,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 439. [2024-11-28 02:09:25,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 323 states have (on average 1.3962848297213621) internal successors, (451), 323 states have internal predecessors, (451), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:09:25,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 667 transitions. [2024-11-28 02:09:25,073 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 667 transitions. Word has length 176 [2024-11-28 02:09:25,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:09:25,073 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 667 transitions. [2024-11-28 02:09:25,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:09:25,074 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 667 transitions. [2024-11-28 02:09:25,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 02:09:25,075 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:09:25,075 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:09:25,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:09:25,076 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:09:25,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:25,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1770456933, now seen corresponding path program 1 times [2024-11-28 02:09:25,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:09:25,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483795381] [2024-11-28 02:09:25,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:25,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:09:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:37,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:09:37,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:09:37,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483795381] [2024-11-28 02:09:37,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483795381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:09:37,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:09:37,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 02:09:37,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451912247] [2024-11-28 02:09:37,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:09:37,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 02:09:37,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:09:37,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 02:09:37,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:09:37,661 INFO L87 Difference]: Start difference. First operand 439 states and 667 transitions. Second operand has 19 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 19 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 02:09:52,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:09:52,410 INFO L93 Difference]: Finished difference Result 502 states and 747 transitions. [2024-11-28 02:09:52,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 02:09:52,411 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 19 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 176 [2024-11-28 02:09:52,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:09:52,414 INFO L225 Difference]: With dead ends: 502 [2024-11-28 02:09:52,414 INFO L226 Difference]: Without dead ends: 500 [2024-11-28 02:09:52,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 02:09:52,415 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 560 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:09:52,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 1239 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-28 02:09:52,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-11-28 02:09:52,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 440. [2024-11-28 02:09:52,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 324 states have (on average 1.3950617283950617) internal successors, (452), 324 states have internal predecessors, (452), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:09:52,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 668 transitions. [2024-11-28 02:09:52,451 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 668 transitions. Word has length 176 [2024-11-28 02:09:52,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:09:52,452 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 668 transitions. [2024-11-28 02:09:52,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 19 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 02:09:52,452 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 668 transitions. [2024-11-28 02:09:52,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 02:09:52,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:09:52,453 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:09:52,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:09:52,454 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:09:52,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:52,454 INFO L85 PathProgramCache]: Analyzing trace with hash 791254519, now seen corresponding path program 1 times [2024-11-28 02:09:52,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:09:52,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379860403] [2024-11-28 02:09:52,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:52,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:09:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:03,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:10:03,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:03,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379860403] [2024-11-28 02:10:03,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379860403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:03,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:03,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 02:10:03,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911883743] [2024-11-28 02:10:03,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:03,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 02:10:03,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:03,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 02:10:03,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:10:03,957 INFO L87 Difference]: Start difference. First operand 440 states and 668 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:10:17,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:17,744 INFO L93 Difference]: Finished difference Result 498 states and 743 transitions. [2024-11-28 02:10:17,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 02:10:17,745 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-28 02:10:17,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:17,748 INFO L225 Difference]: With dead ends: 498 [2024-11-28 02:10:17,748 INFO L226 Difference]: Without dead ends: 496 [2024-11-28 02:10:17,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=359, Invalid=901, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 02:10:17,750 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 439 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:17,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1052 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-28 02:10:17,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-28 02:10:17,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 440. [2024-11-28 02:10:17,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 324 states have (on average 1.3950617283950617) internal successors, (452), 324 states have internal predecessors, (452), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:10:17,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 668 transitions. [2024-11-28 02:10:17,784 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 668 transitions. Word has length 176 [2024-11-28 02:10:17,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:17,785 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 668 transitions. [2024-11-28 02:10:17,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:10:17,785 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 668 transitions. [2024-11-28 02:10:17,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 02:10:17,786 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:17,786 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:17,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:10:17,786 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:17,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:17,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1937704349, now seen corresponding path program 1 times [2024-11-28 02:10:17,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:17,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092446068] [2024-11-28 02:10:17,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:17,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:10:29,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:29,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092446068] [2024-11-28 02:10:29,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092446068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:29,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:29,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 02:10:29,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458704750] [2024-11-28 02:10:29,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:29,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 02:10:29,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:29,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 02:10:29,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:10:29,358 INFO L87 Difference]: Start difference. First operand 440 states and 668 transitions. Second operand has 19 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 19 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 02:10:47,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:47,026 INFO L93 Difference]: Finished difference Result 497 states and 741 transitions. [2024-11-28 02:10:47,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 02:10:47,027 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 19 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 176 [2024-11-28 02:10:47,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:47,029 INFO L225 Difference]: With dead ends: 497 [2024-11-28 02:10:47,029 INFO L226 Difference]: Without dead ends: 495 [2024-11-28 02:10:47,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=469, Invalid=1253, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 02:10:47,031 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 479 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:47,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 1199 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-28 02:10:47,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-28 02:10:47,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 431. [2024-11-28 02:10:47,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 315 states have (on average 1.3904761904761904) internal successors, (438), 315 states have internal predecessors, (438), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:10:47,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 654 transitions. [2024-11-28 02:10:47,128 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 654 transitions. Word has length 176 [2024-11-28 02:10:47,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:47,128 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 654 transitions. [2024-11-28 02:10:47,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 19 states have internal predecessors, (44), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 02:10:47,129 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 654 transitions. [2024-11-28 02:10:47,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 02:10:47,130 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:47,131 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:47,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 02:10:47,131 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:47,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:47,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1574947993, now seen corresponding path program 1 times [2024-11-28 02:10:47,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:47,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948875963] [2024-11-28 02:10:47,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:47,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:05,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:11:05,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:05,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948875963] [2024-11-28 02:11:05,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948875963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:05,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:05,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-28 02:11:05,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950059897] [2024-11-28 02:11:05,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:05,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 02:11:05,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:05,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 02:11:05,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-11-28 02:11:05,529 INFO L87 Difference]: Start difference. First operand 431 states and 654 transitions. Second operand has 21 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 21 states have internal predecessors, (44), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-28 02:11:23,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:23,671 INFO L93 Difference]: Finished difference Result 505 states and 750 transitions. [2024-11-28 02:11:23,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 02:11:23,672 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 21 states have internal predecessors, (44), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 176 [2024-11-28 02:11:23,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:23,674 INFO L225 Difference]: With dead ends: 505 [2024-11-28 02:11:23,674 INFO L226 Difference]: Without dead ends: 503 [2024-11-28 02:11:23,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=404, Invalid=1156, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 02:11:23,675 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 557 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:23,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 1361 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2024-11-28 02:11:23,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-11-28 02:11:23,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 440. [2024-11-28 02:11:23,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 324 states have (on average 1.3950617283950617) internal successors, (452), 324 states have internal predecessors, (452), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:11:23,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 668 transitions. [2024-11-28 02:11:23,714 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 668 transitions. Word has length 176 [2024-11-28 02:11:23,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:23,714 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 668 transitions. [2024-11-28 02:11:23,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 21 states have internal predecessors, (44), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-28 02:11:23,714 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 668 transitions. [2024-11-28 02:11:23,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-28 02:11:23,717 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:23,717 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:23,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 02:11:23,717 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:23,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:23,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1316782555, now seen corresponding path program 1 times [2024-11-28 02:11:23,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:23,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47650530] [2024-11-28 02:11:23,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:23,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:39,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:11:39,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:39,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47650530] [2024-11-28 02:11:39,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47650530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:11:39,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:11:39,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 02:11:39,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722423997] [2024-11-28 02:11:39,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:11:39,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 02:11:39,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:39,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 02:11:39,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:11:39,598 INFO L87 Difference]: Start difference. First operand 440 states and 668 transitions. Second operand has 19 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 19 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:11:54,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:54,985 INFO L93 Difference]: Finished difference Result 499 states and 744 transitions. [2024-11-28 02:11:54,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 02:11:54,986 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 19 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-28 02:11:54,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:54,987 INFO L225 Difference]: With dead ends: 499 [2024-11-28 02:11:54,987 INFO L226 Difference]: Without dead ends: 497 [2024-11-28 02:11:54,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=387, Invalid=945, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 02:11:54,988 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 375 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:54,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1072 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-28 02:11:54,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-11-28 02:11:55,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 437. [2024-11-28 02:11:55,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 321 states have (on average 1.395638629283489) internal successors, (448), 321 states have internal predecessors, (448), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:11:55,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 664 transitions. [2024-11-28 02:11:55,032 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 664 transitions. Word has length 176 [2024-11-28 02:11:55,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:55,033 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 664 transitions. [2024-11-28 02:11:55,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 19 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:11:55,033 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 664 transitions. [2024-11-28 02:11:55,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 02:11:55,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:55,036 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:55,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 02:11:55,036 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:55,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:55,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1915009156, now seen corresponding path program 1 times [2024-11-28 02:11:55,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:55,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211928622] [2024-11-28 02:11:55,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:55,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:12:01,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:12:01,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:12:01,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211928622] [2024-11-28 02:12:01,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211928622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:12:01,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:12:01,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 02:12:01,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885764391] [2024-11-28 02:12:01,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:12:01,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 02:12:01,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:12:01,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 02:12:01,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:12:01,161 INFO L87 Difference]: Start difference. First operand 437 states and 664 transitions. Second operand has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 02:12:07,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:12:07,487 INFO L93 Difference]: Finished difference Result 515 states and 765 transitions. [2024-11-28 02:12:07,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-28 02:12:07,488 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 177 [2024-11-28 02:12:07,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:12:07,491 INFO L225 Difference]: With dead ends: 515 [2024-11-28 02:12:07,491 INFO L226 Difference]: Without dead ends: 513 [2024-11-28 02:12:07,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=507, Invalid=1385, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 02:12:07,492 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 565 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:12:07,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 1295 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 02:12:07,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-28 02:12:07,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 447. [2024-11-28 02:12:07,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 331 states have (on average 1.3987915407854985) internal successors, (463), 331 states have internal predecessors, (463), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:12:07,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 679 transitions. [2024-11-28 02:12:07,528 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 679 transitions. Word has length 177 [2024-11-28 02:12:07,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:12:07,529 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 679 transitions. [2024-11-28 02:12:07,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 02:12:07,529 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 679 transitions. [2024-11-28 02:12:07,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 02:12:07,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:12:07,530 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:12:07,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 02:12:07,531 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:12:07,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:12:07,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1368840890, now seen corresponding path program 1 times [2024-11-28 02:12:07,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:12:07,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790735305] [2024-11-28 02:12:07,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:12:07,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:12:07,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:12:20,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:12:20,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:12:20,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790735305] [2024-11-28 02:12:20,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790735305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:12:20,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:12:20,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-28 02:12:20,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315548853] [2024-11-28 02:12:20,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:12:20,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 02:12:20,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:12:20,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 02:12:20,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2024-11-28 02:12:20,906 INFO L87 Difference]: Start difference. First operand 447 states and 679 transitions. Second operand has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 states have internal predecessors, (45), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 02:12:41,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:12:41,031 INFO L93 Difference]: Finished difference Result 503 states and 750 transitions. [2024-11-28 02:12:41,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-28 02:12:41,032 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 states have internal predecessors, (45), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 177 [2024-11-28 02:12:41,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:12:41,034 INFO L225 Difference]: With dead ends: 503 [2024-11-28 02:12:41,035 INFO L226 Difference]: Without dead ends: 501 [2024-11-28 02:12:41,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=527, Invalid=1453, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 02:12:41,036 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 679 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:12:41,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 1041 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-28 02:12:41,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-28 02:12:41,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 437. [2024-11-28 02:12:41,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 321 states have (on average 1.395638629283489) internal successors, (448), 321 states have internal predecessors, (448), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:12:41,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 664 transitions. [2024-11-28 02:12:41,073 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 664 transitions. Word has length 177 [2024-11-28 02:12:41,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:12:41,073 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 664 transitions. [2024-11-28 02:12:41,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 states have internal predecessors, (45), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-28 02:12:41,074 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 664 transitions. [2024-11-28 02:12:41,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 02:12:41,075 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:12:41,075 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:12:41,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 02:12:41,075 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:12:41,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:12:41,076 INFO L85 PathProgramCache]: Analyzing trace with hash -149199312, now seen corresponding path program 1 times [2024-11-28 02:12:41,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:12:41,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735565684] [2024-11-28 02:12:41,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:12:41,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:12:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:02,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:13:02,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:02,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735565684] [2024-11-28 02:13:02,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735565684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:02,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:02,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 02:13:02,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108210251] [2024-11-28 02:13:02,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:02,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 02:13:02,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:02,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 02:13:02,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:13:02,069 INFO L87 Difference]: Start difference. First operand 437 states and 664 transitions. Second operand has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:13:21,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:21,754 INFO L93 Difference]: Finished difference Result 500 states and 745 transitions. [2024-11-28 02:13:21,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 02:13:21,755 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-28 02:13:21,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:21,757 INFO L225 Difference]: With dead ends: 500 [2024-11-28 02:13:21,757 INFO L226 Difference]: Without dead ends: 498 [2024-11-28 02:13:21,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=402, Invalid=1004, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 02:13:21,758 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 461 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:21,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1106 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2024-11-28 02:13:21,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-28 02:13:21,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 446. [2024-11-28 02:13:21,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 330 states have (on average 1.4) internal successors, (462), 330 states have internal predecessors, (462), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:13:21,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 678 transitions. [2024-11-28 02:13:21,792 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 678 transitions. Word has length 177 [2024-11-28 02:13:21,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:21,793 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 678 transitions. [2024-11-28 02:13:21,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:13:21,793 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 678 transitions. [2024-11-28 02:13:21,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 02:13:21,794 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:21,794 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:21,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 02:13:21,794 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:21,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:21,795 INFO L85 PathProgramCache]: Analyzing trace with hash 997250518, now seen corresponding path program 1 times [2024-11-28 02:13:21,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:21,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299938156] [2024-11-28 02:13:21,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:21,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:35,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:13:35,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:35,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299938156] [2024-11-28 02:13:35,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299938156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:35,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:35,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-28 02:13:35,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333439051] [2024-11-28 02:13:35,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:35,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 02:13:35,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:35,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 02:13:35,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:13:35,683 INFO L87 Difference]: Start difference. First operand 446 states and 678 transitions. Second operand has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:13:46,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:46,699 INFO L93 Difference]: Finished difference Result 500 states and 745 transitions. [2024-11-28 02:13:46,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 02:13:46,700 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-28 02:13:46,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:46,703 INFO L225 Difference]: With dead ends: 500 [2024-11-28 02:13:46,703 INFO L226 Difference]: Without dead ends: 498 [2024-11-28 02:13:46,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=406, Invalid=1000, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 02:13:46,706 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 459 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:46,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1035 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-28 02:13:46,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-28 02:13:46,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 447. [2024-11-28 02:13:46,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 331 states have (on average 1.3987915407854985) internal successors, (463), 331 states have internal predecessors, (463), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:13:46,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 679 transitions. [2024-11-28 02:13:46,754 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 679 transitions. Word has length 177 [2024-11-28 02:13:46,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:46,755 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 679 transitions. [2024-11-28 02:13:46,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:13:46,755 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 679 transitions. [2024-11-28 02:13:46,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 02:13:46,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:46,756 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:46,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 02:13:46,757 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:46,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:46,758 INFO L85 PathProgramCache]: Analyzing trace with hash -736005326, now seen corresponding path program 1 times [2024-11-28 02:13:46,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:46,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114250582] [2024-11-28 02:13:46,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:46,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:08,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:14:08,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:08,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114250582] [2024-11-28 02:14:08,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114250582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:08,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:08,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-28 02:14:08,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525994214] [2024-11-28 02:14:08,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:08,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 02:14:08,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:08,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 02:14:08,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2024-11-28 02:14:08,413 INFO L87 Difference]: Start difference. First operand 447 states and 679 transitions. Second operand has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:14:26,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:26,669 INFO L93 Difference]: Finished difference Result 496 states and 741 transitions. [2024-11-28 02:14:26,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 02:14:26,670 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-28 02:14:26,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:26,674 INFO L225 Difference]: With dead ends: 496 [2024-11-28 02:14:26,674 INFO L226 Difference]: Without dead ends: 494 [2024-11-28 02:14:26,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 22.5s TimeCoverageRelationStatistics Valid=429, Invalid=1053, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 02:14:26,675 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 316 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:26,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 1193 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-28 02:14:26,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-11-28 02:14:26,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 447. [2024-11-28 02:14:26,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 331 states have (on average 1.3987915407854985) internal successors, (463), 331 states have internal predecessors, (463), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:14:26,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 679 transitions. [2024-11-28 02:14:26,719 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 679 transitions. Word has length 177 [2024-11-28 02:14:26,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:26,720 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 679 transitions. [2024-11-28 02:14:26,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:14:26,720 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 679 transitions. [2024-11-28 02:14:26,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 02:14:26,721 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:26,722 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:14:26,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 02:14:26,722 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:26,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:26,723 INFO L85 PathProgramCache]: Analyzing trace with hash 410444504, now seen corresponding path program 1 times [2024-11-28 02:14:26,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:26,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660597013] [2024-11-28 02:14:26,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:26,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:40,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:14:40,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:40,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660597013] [2024-11-28 02:14:40,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660597013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:40,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:40,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-28 02:14:40,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642080442] [2024-11-28 02:14:40,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:40,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 02:14:40,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:40,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 02:14:40,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:14:40,114 INFO L87 Difference]: Start difference. First operand 447 states and 679 transitions. Second operand has 22 states, 22 states have (on average 2.0454545454545454) internal successors, (45), 22 states have internal predecessors, (45), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-28 02:14:55,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:55,837 INFO L93 Difference]: Finished difference Result 495 states and 739 transitions. [2024-11-28 02:14:55,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 02:14:55,839 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.0454545454545454) internal successors, (45), 22 states have internal predecessors, (45), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 177 [2024-11-28 02:14:55,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:55,841 INFO L225 Difference]: With dead ends: 495 [2024-11-28 02:14:55,841 INFO L226 Difference]: Without dead ends: 493 [2024-11-28 02:14:55,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=558, Invalid=1512, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 02:14:55,842 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 423 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:55,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1117 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-28 02:14:55,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-11-28 02:14:55,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 438. [2024-11-28 02:14:55,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 322 states have (on average 1.3944099378881987) internal successors, (449), 322 states have internal predecessors, (449), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:14:55,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 665 transitions. [2024-11-28 02:14:55,878 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 665 transitions. Word has length 177 [2024-11-28 02:14:55,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:55,878 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 665 transitions. [2024-11-28 02:14:55,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.0454545454545454) internal successors, (45), 22 states have internal predecessors, (45), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-28 02:14:55,879 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 665 transitions. [2024-11-28 02:14:55,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-28 02:14:55,880 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:55,880 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:14:55,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 02:14:55,881 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:55,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:55,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2015424095, now seen corresponding path program 1 times [2024-11-28 02:14:55,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:55,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119609103] [2024-11-28 02:14:55,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:55,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:15:10,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:15:10,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:15:10,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119609103] [2024-11-28 02:15:10,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119609103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:15:10,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:15:10,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-28 02:15:10,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678539998] [2024-11-28 02:15:10,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:15:10,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 02:15:10,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:15:10,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 02:15:10,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:15:10,868 INFO L87 Difference]: Start difference. First operand 438 states and 665 transitions. Second operand has 23 states, 23 states have (on average 2.0) internal successors, (46), 23 states have internal predecessors, (46), 4 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-28 02:15:39,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:15:39,946 INFO L93 Difference]: Finished difference Result 507 states and 754 transitions. [2024-11-28 02:15:39,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-28 02:15:39,947 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.0) internal successors, (46), 23 states have internal predecessors, (46), 4 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 178 [2024-11-28 02:15:39,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:15:39,950 INFO L225 Difference]: With dead ends: 507 [2024-11-28 02:15:39,950 INFO L226 Difference]: Without dead ends: 505 [2024-11-28 02:15:39,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 27.6s TimeCoverageRelationStatistics Valid=607, Invalid=1745, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 02:15:39,952 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 623 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:15:39,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 1434 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2024-11-28 02:15:39,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-28 02:15:39,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 438. [2024-11-28 02:15:39,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 322 states have (on average 1.3944099378881987) internal successors, (449), 322 states have internal predecessors, (449), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:15:39,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 665 transitions. [2024-11-28 02:15:39,994 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 665 transitions. Word has length 178 [2024-11-28 02:15:39,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:15:39,995 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 665 transitions. [2024-11-28 02:15:39,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.0) internal successors, (46), 23 states have internal predecessors, (46), 4 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-28 02:15:39,995 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 665 transitions. [2024-11-28 02:15:39,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-28 02:15:39,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:15:39,997 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:15:39,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 02:15:39,997 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:15:39,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:15:39,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1268425951, now seen corresponding path program 1 times [2024-11-28 02:15:39,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:15:39,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356691794] [2024-11-28 02:15:39,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:15:39,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:15:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:00,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 02:16:00,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:16:00,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356691794] [2024-11-28 02:16:00,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356691794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:16:00,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:16:00,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-28 02:16:00,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692701492] [2024-11-28 02:16:00,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:00,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 02:16:00,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:16:00,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 02:16:00,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2024-11-28 02:16:00,933 INFO L87 Difference]: Start difference. First operand 438 states and 665 transitions. Second operand has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 21 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:16:34,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:34,552 INFO L93 Difference]: Finished difference Result 494 states and 738 transitions. [2024-11-28 02:16:34,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 02:16:34,553 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 21 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 178 [2024-11-28 02:16:34,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:34,556 INFO L225 Difference]: With dead ends: 494 [2024-11-28 02:16:34,556 INFO L226 Difference]: Without dead ends: 492 [2024-11-28 02:16:34,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 32.9s TimeCoverageRelationStatistics Valid=616, Invalid=1546, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 02:16:34,558 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 474 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:34,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 996 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2024-11-28 02:16:34,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-11-28 02:16:34,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 423. [2024-11-28 02:16:34,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 307 states have (on average 1.3908794788273615) internal successors, (427), 307 states have internal predecessors, (427), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:16:34,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 643 transitions. [2024-11-28 02:16:34,620 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 643 transitions. Word has length 178 [2024-11-28 02:16:34,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:34,620 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 643 transitions. [2024-11-28 02:16:34,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 21 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-28 02:16:34,621 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 643 transitions. [2024-11-28 02:16:34,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-28 02:16:34,624 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:34,624 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:16:34,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 02:16:34,627 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:16:34,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:34,628 INFO L85 PathProgramCache]: Analyzing trace with hash 245549344, now seen corresponding path program 1 times [2024-11-28 02:16:34,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:16:34,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505608984] [2024-11-28 02:16:34,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:34,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:16:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:53,797 INFO L134 CoverageAnalysis]: Checked inductivity of 5786 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:16:53,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:16:53,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505608984] [2024-11-28 02:16:53,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505608984] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:16:53,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670802006] [2024-11-28 02:16:53,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:53,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:16:53,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:16:53,801 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:16:53,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:16:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:54,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:16:54,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:16:54,541 INFO L134 CoverageAnalysis]: Checked inductivity of 5786 backedges. 387 proven. 3 refuted. 0 times theorem prover too weak. 5396 trivial. 0 not checked. [2024-11-28 02:16:54,541 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:16:55,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670802006] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:16:55,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:16:55,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 5] total 21 [2024-11-28 02:16:55,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386806525] [2024-11-28 02:16:55,251 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:16:55,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 02:16:55,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:16:55,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 02:16:55,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:16:55,253 INFO L87 Difference]: Start difference. First operand 423 states and 643 transitions. Second operand has 21 states, 21 states have (on average 5.666666666666667) internal successors, (119), 21 states have internal predecessors, (119), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2024-11-28 02:17:12,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:17:12,299 INFO L93 Difference]: Finished difference Result 1214 states and 1825 transitions. [2024-11-28 02:17:12,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 02:17:12,300 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.666666666666667) internal successors, (119), 21 states have internal predecessors, (119), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 345 [2024-11-28 02:17:12,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:17:12,302 INFO L225 Difference]: With dead ends: 1214 [2024-11-28 02:17:12,303 INFO L226 Difference]: Without dead ends: 912 [2024-11-28 02:17:12,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 19.7s TimeCoverageRelationStatistics Valid=389, Invalid=1503, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 02:17:12,305 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 795 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 1681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:17:12,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 1892 Invalid, 1681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1529 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-28 02:17:12,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2024-11-28 02:17:12,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 477. [2024-11-28 02:17:12,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 357 states have (on average 1.380952380952381) internal successors, (493), 357 states have internal predecessors, (493), 108 states have call successors, (108), 11 states have call predecessors, (108), 11 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 02:17:12,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 709 transitions. [2024-11-28 02:17:12,391 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 709 transitions. Word has length 345 [2024-11-28 02:17:12,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:17:12,391 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 709 transitions. [2024-11-28 02:17:12,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.666666666666667) internal successors, (119), 21 states have internal predecessors, (119), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2024-11-28 02:17:12,392 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 709 transitions. [2024-11-28 02:17:12,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-28 02:17:12,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:17:12,395 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:12,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:17:12,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 02:17:12,596 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:17:12,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:12,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1347476176, now seen corresponding path program 1 times [2024-11-28 02:17:12,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:12,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110532377] [2024-11-28 02:17:12,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:12,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:12,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:13,161 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:17:13,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:13,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110532377] [2024-11-28 02:17:13,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110532377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:13,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:13,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:17:13,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043378810] [2024-11-28 02:17:13,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:13,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:17:13,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:17:13,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:17:13,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:17:13,164 INFO L87 Difference]: Start difference. First operand 477 states and 709 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-28 02:17:13,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:17:13,557 INFO L93 Difference]: Finished difference Result 1005 states and 1500 transitions. [2024-11-28 02:17:13,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:17:13,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 347 [2024-11-28 02:17:13,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:17:13,563 INFO L225 Difference]: With dead ends: 1005 [2024-11-28 02:17:13,563 INFO L226 Difference]: Without dead ends: 767 [2024-11-28 02:17:13,565 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 [2024-11-28 02:17:13,565 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 250 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:17:13,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 665 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:17:13,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-11-28 02:17:13,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 738. [2024-11-28 02:17:13,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 558 states have (on average 1.3996415770609318) internal successors, (781), 558 states have internal predecessors, (781), 162 states have call successors, (162), 17 states have call predecessors, (162), 17 states have return successors, (162), 162 states have call predecessors, (162), 162 states have call successors, (162) [2024-11-28 02:17:13,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1105 transitions. [2024-11-28 02:17:13,644 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1105 transitions. Word has length 347 [2024-11-28 02:17:13,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:17:13,645 INFO L471 AbstractCegarLoop]: Abstraction has 738 states and 1105 transitions. [2024-11-28 02:17:13,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-28 02:17:13,645 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1105 transitions. [2024-11-28 02:17:13,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-28 02:17:13,649 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:17:13,649 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:13,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 02:17:13,649 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:17:13,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:13,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1551323284, now seen corresponding path program 1 times [2024-11-28 02:17:13,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:17:13,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713932930] [2024-11-28 02:17:13,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:13,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:17:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:25,336 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-28 02:17:25,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:17:25,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713932930] [2024-11-28 02:17:25,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713932930] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:17:25,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907794299] [2024-11-28 02:17:25,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:25,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:25,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:17:25,343 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:17:25,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a06429e-ec58-4157-8f20-f556e651320f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:17:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:26,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-28 02:17:26,096 INFO L279 TraceCheckSpWp]: Computing forward predicates...