./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.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_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1 --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 cdeaaf68ec6b818190b10daa08c2d0ca8b7505d1cb1ac039886c6ec324698b15 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:21:54,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:21:54,787 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:21:54,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:21:54,792 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:21:54,814 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:21:54,814 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:21:54,814 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:21:54,815 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:21:54,815 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:21:54,815 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:21:54,815 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:21:54,815 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:21:54,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:21:54,816 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:21:54,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:21:54,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:21:54,816 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:21:54,816 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:21:54,816 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:21:54,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:21:54,816 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:21:54,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:21:54,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:21:54,816 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:21:54,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:21:54,817 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:21:54,817 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:21:54,817 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:21:54,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:21:54,817 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:21:54,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:21:54,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:21:54,817 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:21:54,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:21:54,817 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:21:54,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:21:54,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:21:54,818 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:21:54,818 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:21:54,818 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:21:54,818 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:21:54,818 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:21:54,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:21:54,818 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:21:54,818 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:21:54,818 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:21:54,818 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:21:54,818 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_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1 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 -> cdeaaf68ec6b818190b10daa08c2d0ca8b7505d1cb1ac039886c6ec324698b15 [2024-12-02 07:21:55,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:21:55,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:21:55,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:21:55,043 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:21:55,043 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:21:55,044 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i [2024-12-02 07:21:57,813 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/data/c0a967c55/58a0717804a74b7c9180afbb71169207/FLAGd514687ee [2024-12-02 07:21:58,039 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:21:58,040 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i [2024-12-02 07:21:58,049 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/data/c0a967c55/58a0717804a74b7c9180afbb71169207/FLAGd514687ee [2024-12-02 07:21:58,062 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/data/c0a967c55/58a0717804a74b7c9180afbb71169207 [2024-12-02 07:21:58,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:21:58,066 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:21:58,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:21:58,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:21:58,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:21:58,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:21:58" (1/1) ... [2024-12-02 07:21:58,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b0c0091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:58, skipping insertion in model container [2024-12-02 07:21:58,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:21:58" (1/1) ... [2024-12-02 07:21:58,090 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:21:58,199 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_4e453716-c28b-48a9-8d76-a0574331a48b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i[917,930] [2024-12-02 07:21:58,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:21:58,256 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:21:58,265 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_4e453716-c28b-48a9-8d76-a0574331a48b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i[917,930] [2024-12-02 07:21:58,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:21:58,312 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:21:58,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:58 WrapperNode [2024-12-02 07:21:58,313 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:21:58,314 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:21:58,314 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:21:58,314 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:21:58,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:58" (1/1) ... [2024-12-02 07:21:58,329 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:58" (1/1) ... [2024-12-02 07:21:58,357 INFO L138 Inliner]: procedures = 27, calls = 152, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 439 [2024-12-02 07:21:58,358 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:21:58,358 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:21:58,359 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:21:58,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:21:58,366 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:58" (1/1) ... [2024-12-02 07:21:58,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:58" (1/1) ... [2024-12-02 07:21:58,371 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:58" (1/1) ... [2024-12-02 07:21:58,389 INFO L175 MemorySlicer]: Split 124 memory accesses to 2 slices as follows [2, 122]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 29 writes are split as follows [0, 29]. [2024-12-02 07:21:58,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:58" (1/1) ... [2024-12-02 07:21:58,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:58" (1/1) ... [2024-12-02 07:21:58,402 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:58" (1/1) ... [2024-12-02 07:21:58,403 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:58" (1/1) ... [2024-12-02 07:21:58,407 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:58" (1/1) ... [2024-12-02 07:21:58,408 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:58" (1/1) ... [2024-12-02 07:21:58,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:58" (1/1) ... [2024-12-02 07:21:58,413 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:21:58,414 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:21:58,414 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:21:58,414 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:21:58,415 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:58" (1/1) ... [2024-12-02 07:21:58,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:21:58,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:21:58,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:21:58,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:21:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:21:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 07:21:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 07:21:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 07:21:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 07:21:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 07:21:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 07:21:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:21:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:21:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:21:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 07:21:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:21:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:21:58,555 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:21:58,557 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:21:58,920 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-12-02 07:21:58,920 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:21:58,930 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:21:58,931 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:21:58,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:21:58 BoogieIcfgContainer [2024-12-02 07:21:58,931 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:21:58,933 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:21:58,934 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:21:58,937 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:21:58,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:21:58" (1/3) ... [2024-12-02 07:21:58,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0cef5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:21:58, skipping insertion in model container [2024-12-02 07:21:58,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:58" (2/3) ... [2024-12-02 07:21:58,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0cef5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:21:58, skipping insertion in model container [2024-12-02 07:21:58,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:21:58" (3/3) ... [2024-12-02 07:21:58,940 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-27.i [2024-12-02 07:21:58,950 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:21:58,951 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-sp_file-27.i that has 2 procedures, 94 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:21:59,007 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:21:59,018 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;@2e9f8a58, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:21:59,018 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:21:59,021 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 07:21:59,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 07:21:59,031 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:21:59,032 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:59,033 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:21:59,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:59,038 INFO L85 PathProgramCache]: Analyzing trace with hash -669687425, now seen corresponding path program 1 times [2024-12-02 07:21:59,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:59,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427234532] [2024-12-02 07:21:59,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:59,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:59,314 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 07:21:59,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:59,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427234532] [2024-12-02 07:21:59,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427234532] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:21:59,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241807904] [2024-12-02 07:21:59,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:59,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:21:59,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:21:59,317 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:21:59,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:21:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:59,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:21:59,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:21:59,552 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 07:21:59,552 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:21:59,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241807904] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:59,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:21:59,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 07:21:59,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720919165] [2024-12-02 07:21:59,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:59,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:21:59,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:59,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:21:59,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:21:59,580 INFO L87 Difference]: Start difference. First operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:21:59,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:21:59,605 INFO L93 Difference]: Finished difference Result 181 states and 283 transitions. [2024-12-02 07:21:59,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:21:59,607 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-12-02 07:21:59,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:21:59,613 INFO L225 Difference]: With dead ends: 181 [2024-12-02 07:21:59,613 INFO L226 Difference]: Without dead ends: 90 [2024-12-02 07:21:59,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:21:59,618 INFO L435 NwaCegarLoop]: 129 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, 129 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 [2024-12-02 07:21:59,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:21:59,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-12-02 07:21:59,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-12-02 07:21:59,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 71 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 07:21:59,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2024-12-02 07:21:59,654 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 131 [2024-12-02 07:21:59,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:21:59,655 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2024-12-02 07:21:59,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:21:59,655 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2024-12-02 07:21:59,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 07:21:59,657 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:21:59,657 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:59,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:21:59,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 07:21:59,858 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:21:59,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:59,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1314658275, now seen corresponding path program 1 times [2024-12-02 07:21:59,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:59,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703328178] [2024-12-02 07:21:59,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:59,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:03,570 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:03,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:03,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703328178] [2024-12-02 07:22:03,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703328178] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:03,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:03,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 07:22:03,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986215336] [2024-12-02 07:22:03,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:03,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:22:03,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:03,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:22:03,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:22:03,573 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 07:22:04,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:04,507 INFO L93 Difference]: Finished difference Result 216 states and 311 transitions. [2024-12-02 07:22:04,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:22:04,507 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 131 [2024-12-02 07:22:04,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:04,509 INFO L225 Difference]: With dead ends: 216 [2024-12-02 07:22:04,509 INFO L226 Difference]: Without dead ends: 129 [2024-12-02 07:22:04,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:22:04,511 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 400 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:04,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 412 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 07:22:04,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-12-02 07:22:04,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 99. [2024-12-02 07:22:04,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 80 states have (on average 1.35) internal successors, (108), 80 states have internal predecessors, (108), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 07:22:04,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 142 transitions. [2024-12-02 07:22:04,530 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 142 transitions. Word has length 131 [2024-12-02 07:22:04,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:04,531 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 142 transitions. [2024-12-02 07:22:04,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 07:22:04,531 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 142 transitions. [2024-12-02 07:22:04,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 07:22:04,533 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:04,533 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:04,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:22:04,534 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:04,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:04,534 INFO L85 PathProgramCache]: Analyzing trace with hash -674347784, now seen corresponding path program 1 times [2024-12-02 07:22:04,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:04,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697823331] [2024-12-02 07:22:04,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:04,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:06,261 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:06,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:06,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697823331] [2024-12-02 07:22:06,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697823331] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:06,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:06,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:22:06,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117790887] [2024-12-02 07:22:06,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:06,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:22:06,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:06,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:22:06,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:22:06,263 INFO L87 Difference]: Start difference. First operand 99 states and 142 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:06,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:06,762 INFO L93 Difference]: Finished difference Result 289 states and 418 transitions. [2024-12-02 07:22:06,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:22:06,762 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 133 [2024-12-02 07:22:06,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:06,765 INFO L225 Difference]: With dead ends: 289 [2024-12-02 07:22:06,765 INFO L226 Difference]: Without dead ends: 193 [2024-12-02 07:22:06,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:22:06,767 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 272 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:06,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 349 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:22:06,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-12-02 07:22:06,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 182. [2024-12-02 07:22:06,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 145 states have (on average 1.3448275862068966) internal successors, (195), 145 states have internal predecessors, (195), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:22:06,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 263 transitions. [2024-12-02 07:22:06,809 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 263 transitions. Word has length 133 [2024-12-02 07:22:06,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:06,810 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 263 transitions. [2024-12-02 07:22:06,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:06,810 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 263 transitions. [2024-12-02 07:22:06,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 07:22:06,813 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:06,813 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:06,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:22:06,813 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:06,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:06,814 INFO L85 PathProgramCache]: Analyzing trace with hash 719608, now seen corresponding path program 1 times [2024-12-02 07:22:06,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:06,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480647082] [2024-12-02 07:22:06,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:06,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:08,030 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:08,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:08,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480647082] [2024-12-02 07:22:08,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480647082] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:08,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:08,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:22:08,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276045429] [2024-12-02 07:22:08,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:08,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:22:08,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:08,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:22:08,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:22:08,032 INFO L87 Difference]: Start difference. First operand 182 states and 263 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:08,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:08,337 INFO L93 Difference]: Finished difference Result 413 states and 598 transitions. [2024-12-02 07:22:08,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:22:08,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 133 [2024-12-02 07:22:08,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:08,340 INFO L225 Difference]: With dead ends: 413 [2024-12-02 07:22:08,340 INFO L226 Difference]: Without dead ends: 234 [2024-12-02 07:22:08,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:22:08,342 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 40 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:08,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 392 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:22:08,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-12-02 07:22:08,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 230. [2024-12-02 07:22:08,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 175 states have (on average 1.3085714285714285) internal successors, (229), 175 states have internal predecessors, (229), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 07:22:08,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 331 transitions. [2024-12-02 07:22:08,388 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 331 transitions. Word has length 133 [2024-12-02 07:22:08,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:08,389 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 331 transitions. [2024-12-02 07:22:08,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:08,389 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 331 transitions. [2024-12-02 07:22:08,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 07:22:08,391 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:08,391 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:08,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:22:08,391 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:08,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:08,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1097049610, now seen corresponding path program 1 times [2024-12-02 07:22:08,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:08,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288706285] [2024-12-02 07:22:08,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:08,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:09,038 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:09,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:09,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288706285] [2024-12-02 07:22:09,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288706285] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:09,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:09,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:22:09,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236297893] [2024-12-02 07:22:09,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:09,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:22:09,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:09,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:22:09,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:22:09,040 INFO L87 Difference]: Start difference. First operand 230 states and 331 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:22:09,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:09,540 INFO L93 Difference]: Finished difference Result 391 states and 563 transitions. [2024-12-02 07:22:09,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:22:09,541 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-12-02 07:22:09,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:09,544 INFO L225 Difference]: With dead ends: 391 [2024-12-02 07:22:09,544 INFO L226 Difference]: Without dead ends: 295 [2024-12-02 07:22:09,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:22:09,545 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 127 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:09,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 426 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:22:09,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-12-02 07:22:09,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 230. [2024-12-02 07:22:09,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 175 states have (on average 1.302857142857143) internal successors, (228), 175 states have internal predecessors, (228), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 07:22:09,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 330 transitions. [2024-12-02 07:22:09,592 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 330 transitions. Word has length 133 [2024-12-02 07:22:09,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:09,592 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 330 transitions. [2024-12-02 07:22:09,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:22:09,593 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 330 transitions. [2024-12-02 07:22:09,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 07:22:09,594 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:09,594 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:09,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:22:09,594 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:09,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:09,595 INFO L85 PathProgramCache]: Analyzing trace with hash -421982218, now seen corresponding path program 1 times [2024-12-02 07:22:09,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:09,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360517328] [2024-12-02 07:22:09,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:09,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:14,165 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:14,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:14,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360517328] [2024-12-02 07:22:14,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360517328] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:14,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:14,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 07:22:14,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337220943] [2024-12-02 07:22:14,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:14,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 07:22:14,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:14,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 07:22:14,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:22:14,168 INFO L87 Difference]: Start difference. First operand 230 states and 330 transitions. Second operand has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 07:22:15,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:15,990 INFO L93 Difference]: Finished difference Result 372 states and 534 transitions. [2024-12-02 07:22:15,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 07:22:15,991 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 133 [2024-12-02 07:22:15,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:15,993 INFO L225 Difference]: With dead ends: 372 [2024-12-02 07:22:15,993 INFO L226 Difference]: Without dead ends: 276 [2024-12-02 07:22:15,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2024-12-02 07:22:15,994 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 389 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:15,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 402 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 07:22:15,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-12-02 07:22:16,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 240. [2024-12-02 07:22:16,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 185 states have (on average 1.3135135135135134) internal successors, (243), 185 states have internal predecessors, (243), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 07:22:16,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 345 transitions. [2024-12-02 07:22:16,033 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 345 transitions. Word has length 133 [2024-12-02 07:22:16,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:16,034 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 345 transitions. [2024-12-02 07:22:16,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 07:22:16,034 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 345 transitions. [2024-12-02 07:22:16,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 07:22:16,035 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:16,035 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:16,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:22:16,036 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:16,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:16,036 INFO L85 PathProgramCache]: Analyzing trace with hash -163816780, now seen corresponding path program 1 times [2024-12-02 07:22:16,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:16,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205142207] [2024-12-02 07:22:16,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:16,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:16,424 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:16,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:16,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205142207] [2024-12-02 07:22:16,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205142207] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:16,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:16,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:22:16,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704063836] [2024-12-02 07:22:16,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:16,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:22:16,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:16,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:22:16,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:22:16,426 INFO L87 Difference]: Start difference. First operand 240 states and 345 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:22:16,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:16,781 INFO L93 Difference]: Finished difference Result 461 states and 664 transitions. [2024-12-02 07:22:16,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:22:16,781 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-12-02 07:22:16,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:16,783 INFO L225 Difference]: With dead ends: 461 [2024-12-02 07:22:16,783 INFO L226 Difference]: Without dead ends: 265 [2024-12-02 07:22:16,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:22:16,785 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 206 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:16,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 294 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:22:16,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-12-02 07:22:16,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 182. [2024-12-02 07:22:16,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 145 states have (on average 1.3241379310344827) internal successors, (192), 145 states have internal predecessors, (192), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:22:16,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 260 transitions. [2024-12-02 07:22:16,819 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 260 transitions. Word has length 133 [2024-12-02 07:22:16,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:16,819 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 260 transitions. [2024-12-02 07:22:16,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:22:16,819 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 260 transitions. [2024-12-02 07:22:16,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 07:22:16,820 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:16,820 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:16,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:22:16,821 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:16,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:16,821 INFO L85 PathProgramCache]: Analyzing trace with hash -927195155, now seen corresponding path program 1 times [2024-12-02 07:22:16,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:16,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119098522] [2024-12-02 07:22:16,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:16,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:16,879 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:16,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:16,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119098522] [2024-12-02 07:22:16,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119098522] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:16,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:16,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:22:16,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772124528] [2024-12-02 07:22:16,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:16,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:22:16,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:16,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:22:16,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:22:16,881 INFO L87 Difference]: Start difference. First operand 182 states and 260 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:22:16,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:16,927 INFO L93 Difference]: Finished difference Result 363 states and 521 transitions. [2024-12-02 07:22:16,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:22:16,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-12-02 07:22:16,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:16,929 INFO L225 Difference]: With dead ends: 363 [2024-12-02 07:22:16,929 INFO L226 Difference]: Without dead ends: 184 [2024-12-02 07:22:16,930 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 [2024-12-02 07:22:16,931 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 249 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 [2024-12-02 07:22:16,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:22:16,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-12-02 07:22:16,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-12-02 07:22:16,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 147 states have (on average 1.3197278911564625) internal successors, (194), 147 states have internal predecessors, (194), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:22:16,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 262 transitions. [2024-12-02 07:22:16,960 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 262 transitions. Word has length 134 [2024-12-02 07:22:16,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:16,961 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 262 transitions. [2024-12-02 07:22:16,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:22:16,961 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 262 transitions. [2024-12-02 07:22:16,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 07:22:16,963 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:16,963 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:16,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:22:16,963 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:16,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:16,964 INFO L85 PathProgramCache]: Analyzing trace with hash -534168145, now seen corresponding path program 1 times [2024-12-02 07:22:16,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:16,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72785293] [2024-12-02 07:22:16,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:16,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:18,178 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:18,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:18,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72785293] [2024-12-02 07:22:18,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72785293] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:18,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:18,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:22:18,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050842678] [2024-12-02 07:22:18,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:18,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:22:18,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:18,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:22:18,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:22:18,181 INFO L87 Difference]: Start difference. First operand 184 states and 262 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:18,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:18,706 INFO L93 Difference]: Finished difference Result 398 states and 573 transitions. [2024-12-02 07:22:18,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:22:18,706 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 134 [2024-12-02 07:22:18,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:18,708 INFO L225 Difference]: With dead ends: 398 [2024-12-02 07:22:18,708 INFO L226 Difference]: Without dead ends: 217 [2024-12-02 07:22:18,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:22:18,709 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 175 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:18,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 249 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:22:18,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-12-02 07:22:18,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 214. [2024-12-02 07:22:18,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 177 states have (on average 1.3389830508474576) internal successors, (237), 177 states have internal predecessors, (237), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:22:18,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 305 transitions. [2024-12-02 07:22:18,735 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 305 transitions. Word has length 134 [2024-12-02 07:22:18,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:18,735 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 305 transitions. [2024-12-02 07:22:18,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:18,736 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 305 transitions. [2024-12-02 07:22:18,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 07:22:18,736 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:18,736 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:18,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:22:18,737 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:18,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:18,737 INFO L85 PathProgramCache]: Analyzing trace with hash -472128531, now seen corresponding path program 1 times [2024-12-02 07:22:18,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:18,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421218251] [2024-12-02 07:22:18,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:18,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:19,269 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:19,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:19,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421218251] [2024-12-02 07:22:19,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421218251] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:19,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:19,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:22:19,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961966828] [2024-12-02 07:22:19,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:19,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:22:19,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:19,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:22:19,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:22:19,271 INFO L87 Difference]: Start difference. First operand 214 states and 305 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:19,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:19,735 INFO L93 Difference]: Finished difference Result 371 states and 528 transitions. [2024-12-02 07:22:19,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:22:19,736 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 134 [2024-12-02 07:22:19,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:19,737 INFO L225 Difference]: With dead ends: 371 [2024-12-02 07:22:19,737 INFO L226 Difference]: Without dead ends: 256 [2024-12-02 07:22:19,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:22:19,738 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 159 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:19,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 287 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:22:19,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-12-02 07:22:19,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 241. [2024-12-02 07:22:19,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 195 states have (on average 1.3076923076923077) internal successors, (255), 196 states have internal predecessors, (255), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 07:22:19,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 339 transitions. [2024-12-02 07:22:19,784 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 339 transitions. Word has length 134 [2024-12-02 07:22:19,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:19,785 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 339 transitions. [2024-12-02 07:22:19,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:19,785 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 339 transitions. [2024-12-02 07:22:19,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:22:19,786 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:19,787 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:19,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:22:19,787 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:19,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:19,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1708220221, now seen corresponding path program 1 times [2024-12-02 07:22:19,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:19,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706619195] [2024-12-02 07:22:19,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:19,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:23,658 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:23,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:23,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706619195] [2024-12-02 07:22:23,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706619195] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:23,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:23,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:22:23,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260813581] [2024-12-02 07:22:23,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:23,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:22:23,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:23,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:22:23,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:22:23,659 INFO L87 Difference]: Start difference. First operand 241 states and 339 transitions. Second operand has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:24,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:24,703 INFO L93 Difference]: Finished difference Result 589 states and 829 transitions. [2024-12-02 07:22:24,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:22:24,704 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-12-02 07:22:24,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:24,707 INFO L225 Difference]: With dead ends: 589 [2024-12-02 07:22:24,707 INFO L226 Difference]: Without dead ends: 372 [2024-12-02 07:22:24,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2024-12-02 07:22:24,709 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 221 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:24,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 389 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:22:24,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-12-02 07:22:24,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 322. [2024-12-02 07:22:24,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 276 states have (on average 1.326086956521739) internal successors, (366), 277 states have internal predecessors, (366), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 07:22:24,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 450 transitions. [2024-12-02 07:22:24,762 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 450 transitions. Word has length 135 [2024-12-02 07:22:24,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:24,762 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 450 transitions. [2024-12-02 07:22:24,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:24,762 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 450 transitions. [2024-12-02 07:22:24,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:22:24,763 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:24,763 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:24,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:22:24,764 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:24,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:24,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1212961131, now seen corresponding path program 1 times [2024-12-02 07:22:24,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:24,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697180698] [2024-12-02 07:22:24,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:24,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:26,571 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:26,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:26,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697180698] [2024-12-02 07:22:26,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697180698] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:26,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:26,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 07:22:26,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685199374] [2024-12-02 07:22:26,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:26,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:22:26,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:26,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:22:26,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:22:26,573 INFO L87 Difference]: Start difference. First operand 322 states and 450 transitions. Second operand has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:27,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:27,790 INFO L93 Difference]: Finished difference Result 764 states and 1066 transitions. [2024-12-02 07:22:27,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:22:27,791 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-12-02 07:22:27,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:27,793 INFO L225 Difference]: With dead ends: 764 [2024-12-02 07:22:27,793 INFO L226 Difference]: Without dead ends: 466 [2024-12-02 07:22:27,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2024-12-02 07:22:27,795 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 455 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:27,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 560 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 07:22:27,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-12-02 07:22:27,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 386. [2024-12-02 07:22:27,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 340 states have (on average 1.3235294117647058) internal successors, (450), 341 states have internal predecessors, (450), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 07:22:27,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 534 transitions. [2024-12-02 07:22:27,842 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 534 transitions. Word has length 135 [2024-12-02 07:22:27,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:27,843 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 534 transitions. [2024-12-02 07:22:27,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:27,843 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 534 transitions. [2024-12-02 07:22:27,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:22:27,844 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:27,845 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:27,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 07:22:27,845 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:27,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:27,845 INFO L85 PathProgramCache]: Analyzing trace with hash -954795693, now seen corresponding path program 1 times [2024-12-02 07:22:27,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:27,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432992797] [2024-12-02 07:22:27,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:27,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:29,586 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:29,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:29,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432992797] [2024-12-02 07:22:29,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432992797] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:29,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:29,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:22:29,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645974801] [2024-12-02 07:22:29,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:29,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:22:29,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:29,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:22:29,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:22:29,587 INFO L87 Difference]: Start difference. First operand 386 states and 534 transitions. Second operand has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:30,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:30,414 INFO L93 Difference]: Finished difference Result 816 states and 1130 transitions. [2024-12-02 07:22:30,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:22:30,415 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-12-02 07:22:30,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:30,417 INFO L225 Difference]: With dead ends: 816 [2024-12-02 07:22:30,417 INFO L226 Difference]: Without dead ends: 454 [2024-12-02 07:22:30,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:22:30,418 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 290 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:30,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 400 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:22:30,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-12-02 07:22:30,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 386. [2024-12-02 07:22:30,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 340 states have (on average 1.311764705882353) internal successors, (446), 341 states have internal predecessors, (446), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 07:22:30,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 530 transitions. [2024-12-02 07:22:30,476 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 530 transitions. Word has length 135 [2024-12-02 07:22:30,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:30,477 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 530 transitions. [2024-12-02 07:22:30,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:30,477 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 530 transitions. [2024-12-02 07:22:30,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:22:30,478 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:30,478 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:30,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 07:22:30,488 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:30,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:30,490 INFO L85 PathProgramCache]: Analyzing trace with hash -2030609581, now seen corresponding path program 1 times [2024-12-02 07:22:30,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:30,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584416117] [2024-12-02 07:22:30,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:30,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:32,335 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:32,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:32,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584416117] [2024-12-02 07:22:32,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584416117] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:32,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:32,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 07:22:32,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989406263] [2024-12-02 07:22:32,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:32,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 07:22:32,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:32,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 07:22:32,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:22:32,337 INFO L87 Difference]: Start difference. First operand 386 states and 530 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:33,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:33,041 INFO L93 Difference]: Finished difference Result 812 states and 1118 transitions. [2024-12-02 07:22:33,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:22:33,042 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-12-02 07:22:33,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:33,044 INFO L225 Difference]: With dead ends: 812 [2024-12-02 07:22:33,044 INFO L226 Difference]: Without dead ends: 450 [2024-12-02 07:22:33,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:22:33,045 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 243 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:33,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 327 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:22:33,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-12-02 07:22:33,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 386. [2024-12-02 07:22:33,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 340 states have (on average 1.3) internal successors, (442), 341 states have internal predecessors, (442), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 07:22:33,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 526 transitions. [2024-12-02 07:22:33,119 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 526 transitions. Word has length 135 [2024-12-02 07:22:33,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:33,120 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 526 transitions. [2024-12-02 07:22:33,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:33,120 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 526 transitions. [2024-12-02 07:22:33,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:22:33,121 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:33,121 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:33,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 07:22:33,121 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:33,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:33,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1772444143, now seen corresponding path program 1 times [2024-12-02 07:22:33,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:33,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523736962] [2024-12-02 07:22:33,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:33,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:35,095 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:35,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:35,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523736962] [2024-12-02 07:22:35,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523736962] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:35,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:35,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 07:22:35,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580134731] [2024-12-02 07:22:35,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:35,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:22:35,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:35,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:22:35,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:22:35,097 INFO L87 Difference]: Start difference. First operand 386 states and 526 transitions. Second operand has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:36,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:36,135 INFO L93 Difference]: Finished difference Result 812 states and 1110 transitions. [2024-12-02 07:22:36,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:22:36,136 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-12-02 07:22:36,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:36,138 INFO L225 Difference]: With dead ends: 812 [2024-12-02 07:22:36,138 INFO L226 Difference]: Without dead ends: 450 [2024-12-02 07:22:36,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2024-12-02 07:22:36,139 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 347 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:36,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 672 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:22:36,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-12-02 07:22:36,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 374. [2024-12-02 07:22:36,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 328 states have (on average 1.298780487804878) internal successors, (426), 329 states have internal predecessors, (426), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 07:22:36,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 510 transitions. [2024-12-02 07:22:36,184 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 510 transitions. Word has length 135 [2024-12-02 07:22:36,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:36,184 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 510 transitions. [2024-12-02 07:22:36,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:36,184 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 510 transitions. [2024-12-02 07:22:36,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:22:36,185 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:36,185 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:36,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 07:22:36,185 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:36,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:36,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1358589219, now seen corresponding path program 1 times [2024-12-02 07:22:36,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:36,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637259757] [2024-12-02 07:22:36,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:36,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:37,493 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:37,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:37,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637259757] [2024-12-02 07:22:37,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637259757] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:37,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:37,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 07:22:37,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204459654] [2024-12-02 07:22:37,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:37,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 07:22:37,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:37,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 07:22:37,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:22:37,495 INFO L87 Difference]: Start difference. First operand 374 states and 510 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:38,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:38,274 INFO L93 Difference]: Finished difference Result 607 states and 831 transitions. [2024-12-02 07:22:38,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:22:38,275 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-12-02 07:22:38,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:38,277 INFO L225 Difference]: With dead ends: 607 [2024-12-02 07:22:38,277 INFO L226 Difference]: Without dead ends: 416 [2024-12-02 07:22:38,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:22:38,278 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 105 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:38,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 358 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:22:38,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-12-02 07:22:38,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 394. [2024-12-02 07:22:38,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 348 states have (on average 1.293103448275862) internal successors, (450), 349 states have internal predecessors, (450), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 07:22:38,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 534 transitions. [2024-12-02 07:22:38,372 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 534 transitions. Word has length 135 [2024-12-02 07:22:38,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:38,373 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 534 transitions. [2024-12-02 07:22:38,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:38,373 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 534 transitions. [2024-12-02 07:22:38,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:22:38,374 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:38,375 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:38,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 07:22:38,375 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:38,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:38,376 INFO L85 PathProgramCache]: Analyzing trace with hash 942233371, now seen corresponding path program 1 times [2024-12-02 07:22:38,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:38,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878751566] [2024-12-02 07:22:38,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:38,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:38,629 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:38,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:38,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878751566] [2024-12-02 07:22:38,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878751566] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:38,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:38,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:22:38,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723738333] [2024-12-02 07:22:38,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:38,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:22:38,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:38,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:22:38,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:22:38,631 INFO L87 Difference]: Start difference. First operand 394 states and 534 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:22:38,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:38,909 INFO L93 Difference]: Finished difference Result 864 states and 1162 transitions. [2024-12-02 07:22:38,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:22:38,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-12-02 07:22:38,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:38,912 INFO L225 Difference]: With dead ends: 864 [2024-12-02 07:22:38,912 INFO L226 Difference]: Without dead ends: 494 [2024-12-02 07:22:38,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:22:38,913 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 140 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:38,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 299 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:22:38,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-12-02 07:22:38,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 438. [2024-12-02 07:22:38,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 392 states have (on average 1.260204081632653) internal successors, (494), 393 states have internal predecessors, (494), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 07:22:38,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 578 transitions. [2024-12-02 07:22:38,994 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 578 transitions. Word has length 135 [2024-12-02 07:22:38,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:38,994 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 578 transitions. [2024-12-02 07:22:38,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:22:38,994 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 578 transitions. [2024-12-02 07:22:38,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:22:38,995 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:38,996 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:38,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 07:22:38,996 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:38,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:38,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1643297949, now seen corresponding path program 1 times [2024-12-02 07:22:38,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:38,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420826181] [2024-12-02 07:22:38,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:38,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:39,797 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:39,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:39,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420826181] [2024-12-02 07:22:39,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420826181] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:39,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:39,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:22:39,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397768785] [2024-12-02 07:22:39,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:39,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:22:39,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:39,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:22:39,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:22:39,799 INFO L87 Difference]: Start difference. First operand 438 states and 578 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:40,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:40,422 INFO L93 Difference]: Finished difference Result 946 states and 1252 transitions. [2024-12-02 07:22:40,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:22:40,422 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-12-02 07:22:40,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:40,424 INFO L225 Difference]: With dead ends: 946 [2024-12-02 07:22:40,424 INFO L226 Difference]: Without dead ends: 532 [2024-12-02 07:22:40,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:22:40,425 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 285 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:40,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 342 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:22:40,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-12-02 07:22:40,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 528. [2024-12-02 07:22:40,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 460 states have (on average 1.2521739130434784) internal successors, (576), 463 states have internal predecessors, (576), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:22:40,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 700 transitions. [2024-12-02 07:22:40,503 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 700 transitions. Word has length 135 [2024-12-02 07:22:40,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:40,503 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 700 transitions. [2024-12-02 07:22:40,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:40,503 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 700 transitions. [2024-12-02 07:22:40,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 07:22:40,504 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:40,504 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:40,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 07:22:40,504 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:40,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:40,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1620026905, now seen corresponding path program 1 times [2024-12-02 07:22:40,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:40,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182661294] [2024-12-02 07:22:40,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:40,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:40,538 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:40,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:40,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182661294] [2024-12-02 07:22:40,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182661294] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:40,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:40,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:22:40,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134353551] [2024-12-02 07:22:40,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:40,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:22:40,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:40,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:22:40,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:22:40,539 INFO L87 Difference]: Start difference. First operand 528 states and 700 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:22:40,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:40,642 INFO L93 Difference]: Finished difference Result 989 states and 1314 transitions. [2024-12-02 07:22:40,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:22:40,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-12-02 07:22:40,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:40,644 INFO L225 Difference]: With dead ends: 989 [2024-12-02 07:22:40,644 INFO L226 Difference]: Without dead ends: 485 [2024-12-02 07:22:40,645 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 [2024-12-02 07:22:40,645 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:40,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:22:40,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-12-02 07:22:40,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 485. [2024-12-02 07:22:40,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 417 states have (on average 1.2446043165467626) internal successors, (519), 420 states have internal predecessors, (519), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:22:40,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 643 transitions. [2024-12-02 07:22:40,715 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 643 transitions. Word has length 136 [2024-12-02 07:22:40,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:40,716 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 643 transitions. [2024-12-02 07:22:40,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:22:40,716 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 643 transitions. [2024-12-02 07:22:40,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 07:22:40,717 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:40,717 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:40,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 07:22:40,717 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:40,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:40,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1110553815, now seen corresponding path program 1 times [2024-12-02 07:22:40,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:40,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663288114] [2024-12-02 07:22:40,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:40,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:41,433 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:41,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:41,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663288114] [2024-12-02 07:22:41,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663288114] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:41,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:41,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:22:41,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434212118] [2024-12-02 07:22:41,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:41,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:22:41,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:41,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:22:41,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:22:41,434 INFO L87 Difference]: Start difference. First operand 485 states and 643 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 07:22:41,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:41,952 INFO L93 Difference]: Finished difference Result 912 states and 1212 transitions. [2024-12-02 07:22:41,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:22:41,952 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 136 [2024-12-02 07:22:41,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:41,954 INFO L225 Difference]: With dead ends: 912 [2024-12-02 07:22:41,954 INFO L226 Difference]: Without dead ends: 451 [2024-12-02 07:22:41,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:22:41,955 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 136 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:41,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 263 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:22:41,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-12-02 07:22:42,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 450. [2024-12-02 07:22:42,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 382 states have (on average 1.2303664921465969) internal successors, (470), 385 states have internal predecessors, (470), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:22:42,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 594 transitions. [2024-12-02 07:22:42,055 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 594 transitions. Word has length 136 [2024-12-02 07:22:42,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:42,055 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 594 transitions. [2024-12-02 07:22:42,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 07:22:42,055 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 594 transitions. [2024-12-02 07:22:42,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 07:22:42,056 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:42,057 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:42,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 07:22:42,057 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:42,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:42,057 INFO L85 PathProgramCache]: Analyzing trace with hash 847971409, now seen corresponding path program 1 times [2024-12-02 07:22:42,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:42,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345723835] [2024-12-02 07:22:42,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:42,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:42,537 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:42,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:42,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345723835] [2024-12-02 07:22:42,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345723835] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:42,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:42,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:22:42,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720305062] [2024-12-02 07:22:42,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:42,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:22:42,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:42,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:22:42,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:22:42,539 INFO L87 Difference]: Start difference. First operand 450 states and 594 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:22:42,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:42,979 INFO L93 Difference]: Finished difference Result 953 states and 1256 transitions. [2024-12-02 07:22:42,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:22:42,980 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-12-02 07:22:42,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:42,981 INFO L225 Difference]: With dead ends: 953 [2024-12-02 07:22:42,981 INFO L226 Difference]: Without dead ends: 527 [2024-12-02 07:22:42,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:22:42,983 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 213 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:42,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 474 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:22:42,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-12-02 07:22:43,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 505. [2024-12-02 07:22:43,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 437 states have (on average 1.22883295194508) internal successors, (537), 440 states have internal predecessors, (537), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:22:43,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 661 transitions. [2024-12-02 07:22:43,120 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 661 transitions. Word has length 139 [2024-12-02 07:22:43,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:43,121 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 661 transitions. [2024-12-02 07:22:43,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:22:43,121 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 661 transitions. [2024-12-02 07:22:43,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 07:22:43,122 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:43,122 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:43,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 07:22:43,122 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:43,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:43,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1096577190, now seen corresponding path program 1 times [2024-12-02 07:22:43,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:43,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800010819] [2024-12-02 07:22:43,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:43,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:45,080 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:45,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:45,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800010819] [2024-12-02 07:22:45,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800010819] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:45,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:45,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 07:22:45,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535571239] [2024-12-02 07:22:45,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:45,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:22:45,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:45,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:22:45,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:22:45,082 INFO L87 Difference]: Start difference. First operand 505 states and 661 transitions. Second operand has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 07:22:46,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:46,369 INFO L93 Difference]: Finished difference Result 960 states and 1248 transitions. [2024-12-02 07:22:46,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:22:46,370 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 139 [2024-12-02 07:22:46,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:46,373 INFO L225 Difference]: With dead ends: 960 [2024-12-02 07:22:46,373 INFO L226 Difference]: Without dead ends: 679 [2024-12-02 07:22:46,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2024-12-02 07:22:46,375 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 524 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:46,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 397 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:22:46,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-12-02 07:22:46,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 514. [2024-12-02 07:22:46,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 446 states have (on average 1.2286995515695067) internal successors, (548), 449 states have internal predecessors, (548), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:22:46,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 672 transitions. [2024-12-02 07:22:46,449 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 672 transitions. Word has length 139 [2024-12-02 07:22:46,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:46,449 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 672 transitions. [2024-12-02 07:22:46,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 07:22:46,449 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 672 transitions. [2024-12-02 07:22:46,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 07:22:46,451 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:46,451 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:46,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 07:22:46,451 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:46,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:46,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1020534997, now seen corresponding path program 1 times [2024-12-02 07:22:46,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:46,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018962039] [2024-12-02 07:22:46,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:46,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:46,585 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:46,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:46,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018962039] [2024-12-02 07:22:46,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018962039] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:46,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:46,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:22:46,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613279172] [2024-12-02 07:22:46,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:46,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:22:46,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:46,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:22:46,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:22:46,586 INFO L87 Difference]: Start difference. First operand 514 states and 672 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:22:46,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:46,771 INFO L93 Difference]: Finished difference Result 1063 states and 1389 transitions. [2024-12-02 07:22:46,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:22:46,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-12-02 07:22:46,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:46,774 INFO L225 Difference]: With dead ends: 1063 [2024-12-02 07:22:46,774 INFO L226 Difference]: Without dead ends: 573 [2024-12-02 07:22:46,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:22:46,775 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 59 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:46,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 310 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:22:46,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-12-02 07:22:46,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 525. [2024-12-02 07:22:46,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 457 states have (on average 1.2210065645514223) internal successors, (558), 460 states have internal predecessors, (558), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:22:46,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 682 transitions. [2024-12-02 07:22:46,848 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 682 transitions. Word has length 139 [2024-12-02 07:22:46,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:46,849 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 682 transitions. [2024-12-02 07:22:46,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:22:46,849 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 682 transitions. [2024-12-02 07:22:46,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 07:22:46,850 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:46,850 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:46,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 07:22:46,850 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:46,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:46,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1329883700, now seen corresponding path program 1 times [2024-12-02 07:22:46,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:46,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918492040] [2024-12-02 07:22:46,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:46,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:47,906 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:47,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:47,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918492040] [2024-12-02 07:22:47,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918492040] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:47,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:47,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:22:47,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494925147] [2024-12-02 07:22:47,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:47,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:22:47,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:47,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:22:47,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:22:47,907 INFO L87 Difference]: Start difference. First operand 525 states and 682 transitions. Second operand has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 07:22:48,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:48,647 INFO L93 Difference]: Finished difference Result 1169 states and 1520 transitions. [2024-12-02 07:22:48,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:22:48,647 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 139 [2024-12-02 07:22:48,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:48,649 INFO L225 Difference]: With dead ends: 1169 [2024-12-02 07:22:48,649 INFO L226 Difference]: Without dead ends: 668 [2024-12-02 07:22:48,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:22:48,650 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 287 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:48,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 274 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:22:48,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-12-02 07:22:48,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 568. [2024-12-02 07:22:48,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 500 states have (on average 1.224) internal successors, (612), 503 states have internal predecessors, (612), 62 states have call successors, (62), 5 states have call predecessors, (62), 5 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:22:48,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 736 transitions. [2024-12-02 07:22:48,729 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 736 transitions. Word has length 139 [2024-12-02 07:22:48,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:48,729 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 736 transitions. [2024-12-02 07:22:48,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 07:22:48,729 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 736 transitions. [2024-12-02 07:22:48,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 07:22:48,730 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:48,730 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:48,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 07:22:48,730 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:48,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:48,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1953966346, now seen corresponding path program 1 times [2024-12-02 07:22:48,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:48,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904292032] [2024-12-02 07:22:48,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:48,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:49,278 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 36 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 07:22:49,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:49,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904292032] [2024-12-02 07:22:49,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904292032] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:22:49,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723495745] [2024-12-02 07:22:49,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:49,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:22:49,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:22:49,280 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:22:49,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:22:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:49,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 07:22:49,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:22:49,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 07:22:50,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 07:22:50,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 07:22:50,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 07:22:50,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 07:22:50,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 07:22:50,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:50,866 INFO L349 Elim1Store]: treesize reduction 60, result has 41.7 percent of original size [2024-12-02 07:22:50,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 62 [2024-12-02 07:22:50,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-02 07:22:50,946 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 165 proven. 195 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-12-02 07:22:50,946 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:22:55,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723495745] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:22:55,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:22:55,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2024-12-02 07:22:55,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578553724] [2024-12-02 07:22:55,132 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:22:55,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 07:22:55,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:55,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 07:22:55,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=341, Unknown=1, NotChecked=0, Total=420 [2024-12-02 07:22:55,134 INFO L87 Difference]: Start difference. First operand 568 states and 736 transitions. Second operand has 18 states, 16 states have (on average 6.1875) internal successors, (99), 18 states have internal predecessors, (99), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) [2024-12-02 07:22:56,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:56,707 INFO L93 Difference]: Finished difference Result 916 states and 1176 transitions. [2024-12-02 07:22:56,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:22:56,708 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.1875) internal successors, (99), 18 states have internal predecessors, (99), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) Word has length 139 [2024-12-02 07:22:56,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:56,710 INFO L225 Difference]: With dead ends: 916 [2024-12-02 07:22:56,710 INFO L226 Difference]: Without dead ends: 596 [2024-12-02 07:22:56,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 168 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=164, Invalid=537, Unknown=1, NotChecked=0, Total=702 [2024-12-02 07:22:56,711 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 182 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:56,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 418 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 07:22:56,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-12-02 07:22:56,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 573. [2024-12-02 07:22:56,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 500 states have (on average 1.212) internal successors, (606), 503 states have internal predecessors, (606), 62 states have call successors, (62), 10 states have call predecessors, (62), 10 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 07:22:56,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 730 transitions. [2024-12-02 07:22:56,887 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 730 transitions. Word has length 139 [2024-12-02 07:22:56,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:56,888 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 730 transitions. [2024-12-02 07:22:56,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 6.1875) internal successors, (99), 18 states have internal predecessors, (99), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) [2024-12-02 07:22:56,888 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 730 transitions. [2024-12-02 07:22:56,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 07:22:56,889 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:56,890 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:56,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:22:57,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e453716-c28b-48a9-8d76-a0574331a48b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-12-02 07:22:57,090 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:57,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:57,091 INFO L85 PathProgramCache]: Analyzing trace with hash -249593030, now seen corresponding path program 1 times [2024-12-02 07:22:57,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:57,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142323569] [2024-12-02 07:22:57,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:57,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:58,401 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:22:58,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:58,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142323569] [2024-12-02 07:22:58,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142323569] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:58,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:58,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 07:22:58,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342660790] [2024-12-02 07:22:58,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:58,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:22:58,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:58,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:22:58,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:22:58,404 INFO L87 Difference]: Start difference. First operand 573 states and 730 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:59,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:59,501 INFO L93 Difference]: Finished difference Result 1088 states and 1380 transitions. [2024-12-02 07:22:59,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:22:59,502 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-12-02 07:22:59,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:59,504 INFO L225 Difference]: With dead ends: 1088 [2024-12-02 07:22:59,504 INFO L226 Difference]: Without dead ends: 775 [2024-12-02 07:22:59,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:22:59,505 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 358 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:59,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 245 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:22:59,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2024-12-02 07:22:59,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 771. [2024-12-02 07:22:59,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 687 states have (on average 1.2168850072780204) internal successors, (836), 692 states have internal predecessors, (836), 70 states have call successors, (70), 13 states have call predecessors, (70), 13 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 07:22:59,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 976 transitions. [2024-12-02 07:22:59,617 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 976 transitions. Word has length 139 [2024-12-02 07:22:59,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:59,617 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 976 transitions. [2024-12-02 07:22:59,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:22:59,617 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 976 transitions. [2024-12-02 07:22:59,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 07:22:59,618 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:59,618 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:59,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 07:22:59,618 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:59,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:59,619 INFO L85 PathProgramCache]: Analyzing trace with hash 430465340, now seen corresponding path program 1 times [2024-12-02 07:22:59,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:59,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221131564] [2024-12-02 07:22:59,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:59,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:23:02,400 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:23:02,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:23:02,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221131564] [2024-12-02 07:23:02,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221131564] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:23:02,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:23:02,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 07:23:02,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684416987] [2024-12-02 07:23:02,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:23:02,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 07:23:02,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:23:02,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 07:23:02,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:23:02,402 INFO L87 Difference]: Start difference. First operand 771 states and 976 transitions. Second operand has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:23:05,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:23:05,033 INFO L93 Difference]: Finished difference Result 1286 states and 1627 transitions. [2024-12-02 07:23:05,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:23:05,034 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-12-02 07:23:05,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:23:05,035 INFO L225 Difference]: With dead ends: 1286 [2024-12-02 07:23:05,036 INFO L226 Difference]: Without dead ends: 779 [2024-12-02 07:23:05,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2024-12-02 07:23:05,036 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 201 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:23:05,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 604 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 07:23:05,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2024-12-02 07:23:05,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 771. [2024-12-02 07:23:05,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 687 states have (on average 1.2168850072780204) internal successors, (836), 692 states have internal predecessors, (836), 70 states have call successors, (70), 13 states have call predecessors, (70), 13 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 07:23:05,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 976 transitions. [2024-12-02 07:23:05,146 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 976 transitions. Word has length 139 [2024-12-02 07:23:05,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:23:05,147 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 976 transitions. [2024-12-02 07:23:05,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:23:05,147 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 976 transitions. [2024-12-02 07:23:05,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 07:23:05,148 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:23:05,148 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:23:05,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 07:23:05,148 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:23:05,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:23:05,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1326103137, now seen corresponding path program 1 times [2024-12-02 07:23:05,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:23:05,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679317824] [2024-12-02 07:23:05,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:23:05,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:23:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:23:07,590 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:23:07,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:23:07,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679317824] [2024-12-02 07:23:07,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679317824] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:23:07,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:23:07,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 07:23:07,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031857151] [2024-12-02 07:23:07,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:23:07,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 07:23:07,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:23:07,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 07:23:07,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:23:07,592 INFO L87 Difference]: Start difference. First operand 771 states and 976 transitions. Second operand has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 07:23:09,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:23:09,032 INFO L93 Difference]: Finished difference Result 1266 states and 1601 transitions. [2024-12-02 07:23:09,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:23:09,033 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 140 [2024-12-02 07:23:09,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:23:09,035 INFO L225 Difference]: With dead ends: 1266 [2024-12-02 07:23:09,035 INFO L226 Difference]: Without dead ends: 759 [2024-12-02 07:23:09,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:23:09,035 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 249 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:23:09,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 308 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 07:23:09,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2024-12-02 07:23:09,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 748. [2024-12-02 07:23:09,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 664 states have (on average 1.2123493975903614) internal successors, (805), 669 states have internal predecessors, (805), 70 states have call successors, (70), 13 states have call predecessors, (70), 13 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 07:23:09,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 945 transitions. [2024-12-02 07:23:09,148 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 945 transitions. Word has length 140 [2024-12-02 07:23:09,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:23:09,148 INFO L471 AbstractCegarLoop]: Abstraction has 748 states and 945 transitions. [2024-12-02 07:23:09,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 07:23:09,148 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 945 transitions. [2024-12-02 07:23:09,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 07:23:09,150 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:23:09,150 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:23:09,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 07:23:09,150 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:23:09,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:23:09,150 INFO L85 PathProgramCache]: Analyzing trace with hash 629030269, now seen corresponding path program 1 times [2024-12-02 07:23:09,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:23:09,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511114425] [2024-12-02 07:23:09,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:23:09,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:23:09,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:23:09,410 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:23:09,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:23:09,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511114425] [2024-12-02 07:23:09,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511114425] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:23:09,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:23:09,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:23:09,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719169197] [2024-12-02 07:23:09,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:23:09,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:23:09,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:23:09,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:23:09,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:23:09,411 INFO L87 Difference]: Start difference. First operand 748 states and 945 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:23:09,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:23:09,861 INFO L93 Difference]: Finished difference Result 1587 states and 2007 transitions. [2024-12-02 07:23:09,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:23:09,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-12-02 07:23:09,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:23:09,864 INFO L225 Difference]: With dead ends: 1587 [2024-12-02 07:23:09,865 INFO L226 Difference]: Without dead ends: 871 [2024-12-02 07:23:09,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:23:09,866 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 21 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:23:09,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 369 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:23:09,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-12-02 07:23:09,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 809. [2024-12-02 07:23:09,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 725 states have (on average 1.2055172413793103) internal successors, (874), 730 states have internal predecessors, (874), 70 states have call successors, (70), 13 states have call predecessors, (70), 13 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 07:23:09,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1014 transitions. [2024-12-02 07:23:09,988 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1014 transitions. Word has length 141 [2024-12-02 07:23:09,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:23:09,988 INFO L471 AbstractCegarLoop]: Abstraction has 809 states and 1014 transitions. [2024-12-02 07:23:09,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:23:09,988 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1014 transitions. [2024-12-02 07:23:09,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 07:23:09,990 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:23:09,990 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:23:09,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 07:23:09,990 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:23:09,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:23:09,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1279321409, now seen corresponding path program 1 times [2024-12-02 07:23:09,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:23:09,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126472501] [2024-12-02 07:23:09,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:23:09,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:23:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:23:11,296 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:23:11,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:23:11,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126472501] [2024-12-02 07:23:11,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126472501] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:23:11,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:23:11,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 07:23:11,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534783931] [2024-12-02 07:23:11,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:23:11,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 07:23:11,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:23:11,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 07:23:11,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:23:11,298 INFO L87 Difference]: Start difference. First operand 809 states and 1014 transitions. Second operand has 11 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:23:12,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:23:12,607 INFO L93 Difference]: Finished difference Result 1548 states and 1937 transitions. [2024-12-02 07:23:12,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:23:12,607 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141 [2024-12-02 07:23:12,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:23:12,610 INFO L225 Difference]: With dead ends: 1548 [2024-12-02 07:23:12,610 INFO L226 Difference]: Without dead ends: 771 [2024-12-02 07:23:12,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:23:12,612 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 363 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:23:12,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 293 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 07:23:12,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-12-02 07:23:12,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 769. [2024-12-02 07:23:12,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 683 states have (on average 1.191800878477306) internal successors, (814), 688 states have internal predecessors, (814), 70 states have call successors, (70), 15 states have call predecessors, (70), 15 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 07:23:12,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 954 transitions. [2024-12-02 07:23:12,748 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 954 transitions. Word has length 141 [2024-12-02 07:23:12,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:23:12,749 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 954 transitions. [2024-12-02 07:23:12,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:23:12,749 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 954 transitions. [2024-12-02 07:23:12,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 07:23:12,750 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:23:12,750 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:23:12,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 07:23:12,750 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:23:12,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:23:12,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1162343512, now seen corresponding path program 1 times [2024-12-02 07:23:12,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:23:12,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19139384] [2024-12-02 07:23:12,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:23:12,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:23:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:23:13,298 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:23:13,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:23:13,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19139384] [2024-12-02 07:23:13,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19139384] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:23:13,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:23:13,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:23:13,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536508463] [2024-12-02 07:23:13,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:23:13,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:23:13,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:23:13,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:23:13,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:23:13,299 INFO L87 Difference]: Start difference. First operand 769 states and 954 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:23:14,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:23:14,125 INFO L93 Difference]: Finished difference Result 858 states and 1062 transitions. [2024-12-02 07:23:14,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:23:14,126 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-12-02 07:23:14,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:23:14,128 INFO L225 Difference]: With dead ends: 858 [2024-12-02 07:23:14,128 INFO L226 Difference]: Without dead ends: 856 [2024-12-02 07:23:14,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:23:14,129 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 120 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:23:14,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 613 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:23:14,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2024-12-02 07:23:14,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 824. [2024-12-02 07:23:14,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 738 states have (on average 1.1897018970189701) internal successors, (878), 743 states have internal predecessors, (878), 70 states have call successors, (70), 15 states have call predecessors, (70), 15 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 07:23:14,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1018 transitions. [2024-12-02 07:23:14,274 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1018 transitions. Word has length 141 [2024-12-02 07:23:14,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:23:14,274 INFO L471 AbstractCegarLoop]: Abstraction has 824 states and 1018 transitions. [2024-12-02 07:23:14,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:23:14,275 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1018 transitions. [2024-12-02 07:23:14,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 07:23:14,276 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:23:14,276 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:23:14,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 07:23:14,276 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:23:14,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:23:14,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1315391000, now seen corresponding path program 1 times [2024-12-02 07:23:14,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:23:14,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667416906] [2024-12-02 07:23:14,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:23:14,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:23:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:23:14,620 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:23:14,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:23:14,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667416906] [2024-12-02 07:23:14,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667416906] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:23:14,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:23:14,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:23:14,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510268156] [2024-12-02 07:23:14,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:23:14,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:23:14,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:23:14,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:23:14,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:23:14,621 INFO L87 Difference]: Start difference. First operand 824 states and 1018 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:23:15,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:23:15,457 INFO L93 Difference]: Finished difference Result 1605 states and 1987 transitions. [2024-12-02 07:23:15,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:23:15,457 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 142 [2024-12-02 07:23:15,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:23:15,460 INFO L225 Difference]: With dead ends: 1605 [2024-12-02 07:23:15,460 INFO L226 Difference]: Without dead ends: 813 [2024-12-02 07:23:15,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:23:15,461 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 134 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:23:15,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 328 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:23:15,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-12-02 07:23:15,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 781. [2024-12-02 07:23:15,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 695 states have (on average 1.1841726618705035) internal successors, (823), 700 states have internal predecessors, (823), 70 states have call successors, (70), 15 states have call predecessors, (70), 15 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 07:23:15,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 963 transitions. [2024-12-02 07:23:15,605 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 963 transitions. Word has length 142 [2024-12-02 07:23:15,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:23:15,606 INFO L471 AbstractCegarLoop]: Abstraction has 781 states and 963 transitions. [2024-12-02 07:23:15,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:23:15,606 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 963 transitions. [2024-12-02 07:23:15,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 07:23:15,607 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:23:15,607 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:23:15,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 07:23:15,607 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:23:15,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:23:15,607 INFO L85 PathProgramCache]: Analyzing trace with hash -2018913394, now seen corresponding path program 1 times [2024-12-02 07:23:15,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:23:15,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571767056] [2024-12-02 07:23:15,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:23:15,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:23:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:23:17,533 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:23:17,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:23:17,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571767056] [2024-12-02 07:23:17,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571767056] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:23:17,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:23:17,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:23:17,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979009667] [2024-12-02 07:23:17,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:23:17,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:23:17,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:23:17,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:23:17,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:23:17,534 INFO L87 Difference]: Start difference. First operand 781 states and 963 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:23:19,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:23:19,103 INFO L93 Difference]: Finished difference Result 1514 states and 1864 transitions. [2024-12-02 07:23:19,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:23:19,104 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 142 [2024-12-02 07:23:19,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:23:19,106 INFO L225 Difference]: With dead ends: 1514 [2024-12-02 07:23:19,106 INFO L226 Difference]: Without dead ends: 765 [2024-12-02 07:23:19,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 7 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:23:19,107 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 173 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:23:19,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 267 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 07:23:19,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-12-02 07:23:19,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 755. [2024-12-02 07:23:19,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 669 states have (on average 1.1689088191330343) internal successors, (782), 674 states have internal predecessors, (782), 70 states have call successors, (70), 15 states have call predecessors, (70), 15 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 07:23:19,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 922 transitions. [2024-12-02 07:23:19,255 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 922 transitions. Word has length 142 [2024-12-02 07:23:19,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:23:19,255 INFO L471 AbstractCegarLoop]: Abstraction has 755 states and 922 transitions. [2024-12-02 07:23:19,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:23:19,255 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 922 transitions. [2024-12-02 07:23:19,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 07:23:19,256 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:23:19,256 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:23:19,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 07:23:19,256 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:23:19,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:23:19,256 INFO L85 PathProgramCache]: Analyzing trace with hash -859846733, now seen corresponding path program 1 times [2024-12-02 07:23:19,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:23:19,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835540134] [2024-12-02 07:23:19,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:23:19,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:23:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:23:19,640 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:23:19,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:23:19,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835540134] [2024-12-02 07:23:19,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835540134] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:23:19,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:23:19,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:23:19,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235617481] [2024-12-02 07:23:19,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:23:19,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:23:19,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:23:19,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:23:19,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:23:19,641 INFO L87 Difference]: Start difference. First operand 755 states and 922 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:23:20,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:23:20,421 INFO L93 Difference]: Finished difference Result 1332 states and 1632 transitions. [2024-12-02 07:23:20,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:23:20,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-12-02 07:23:20,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:23:20,424 INFO L225 Difference]: With dead ends: 1332 [2024-12-02 07:23:20,424 INFO L226 Difference]: Without dead ends: 579 [2024-12-02 07:23:20,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:23:20,425 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 87 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:23:20,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 283 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:23:20,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-12-02 07:23:20,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 575. [2024-12-02 07:23:20,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 501 states have (on average 1.1516966067864272) internal successors, (577), 505 states have internal predecessors, (577), 60 states have call successors, (60), 13 states have call predecessors, (60), 13 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 07:23:20,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 697 transitions. [2024-12-02 07:23:20,527 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 697 transitions. Word has length 143 [2024-12-02 07:23:20,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:23:20,527 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 697 transitions. [2024-12-02 07:23:20,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:23:20,527 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 697 transitions. [2024-12-02 07:23:20,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 07:23:20,528 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:23:20,528 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:23:20,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 07:23:20,528 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:23:20,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:23:20,528 INFO L85 PathProgramCache]: Analyzing trace with hash 856188912, now seen corresponding path program 1 times [2024-12-02 07:23:20,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:23:20,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457929762] [2024-12-02 07:23:20,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:23:20,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:23:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat