./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-70.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f2cb36cc0f0fd05117e5167c95d28ca6a711637d120a8a77c2820981a0c818fc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:54:26,779 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:54:26,875 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:54:26,880 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:54:26,881 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:54:26,910 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:54:26,911 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:54:26,911 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:54:26,911 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:54:26,911 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:54:26,912 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:54:26,912 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:54:26,912 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:54:26,913 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:54:26,913 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:54:26,914 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:54:26,914 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:54:26,914 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:54:26,914 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:54:26,914 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:54:26,914 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:54:26,914 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:54:26,914 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:54:26,914 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:54:26,914 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:54:26,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:54:26,915 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:54:26,915 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:54:26,915 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:54:26,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:54:26,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:54:26,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:54:26,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:54:26,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:54:26,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:54:26,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:54:26,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:54:26,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:54:26,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:54:26,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:54:26,916 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:54:26,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:54:26,916 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:54:26,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:54:26,916 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:54:26,916 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:54:26,916 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:54:26,916 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:54:26,917 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_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2cb36cc0f0fd05117e5167c95d28ca6a711637d120a8a77c2820981a0c818fc [2024-11-23 22:54:27,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:54:27,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:54:27,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:54:27,226 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:54:27,227 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:54:27,228 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-70.i [2024-11-23 22:54:30,223 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/data/248ab9c55/cb4323d80a14434c9c32682ec6b7be92/FLAG18b95526c [2024-11-23 22:54:30,501 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:54:30,503 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-70.i [2024-11-23 22:54:30,514 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/data/248ab9c55/cb4323d80a14434c9c32682ec6b7be92/FLAG18b95526c [2024-11-23 22:54:30,536 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/data/248ab9c55/cb4323d80a14434c9c32682ec6b7be92 [2024-11-23 22:54:30,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:54:30,540 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:54:30,543 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:54:30,544 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:54:30,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:54:30,550 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:54:30" (1/1) ... [2024-11-23 22:54:30,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a02b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:30, skipping insertion in model container [2024-11-23 22:54:30,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:54:30" (1/1) ... [2024-11-23 22:54:30,575 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:54:30,760 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_0bf5c792-4960-4db4-89f3-0be3c403bb28/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-70.i[916,929] [2024-11-23 22:54:30,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:54:30,886 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:54:30,900 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_0bf5c792-4960-4db4-89f3-0be3c403bb28/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-70.i[916,929] [2024-11-23 22:54:30,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:54:30,966 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:54:30,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:30 WrapperNode [2024-11-23 22:54:30,967 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:54:30,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:54:30,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:54:30,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:54:30,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:30" (1/1) ... [2024-11-23 22:54:30,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:30" (1/1) ... [2024-11-23 22:54:31,057 INFO L138 Inliner]: procedures = 29, calls = 161, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 523 [2024-11-23 22:54:31,057 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:54:31,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:54:31,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:54:31,058 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:54:31,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:30" (1/1) ... [2024-11-23 22:54:31,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:30" (1/1) ... [2024-11-23 22:54:31,073 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:30" (1/1) ... [2024-11-23 22:54:31,102 INFO L175 MemorySlicer]: Split 132 memory accesses to 7 slices as follows [2, 8, 39, 12, 5, 41, 25]. 31 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 1, 5, 3, 1, 2, 2]. The 16 writes are split as follows [0, 1, 6, 3, 2, 2, 2]. [2024-11-23 22:54:31,102 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:30" (1/1) ... [2024-11-23 22:54:31,102 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:30" (1/1) ... [2024-11-23 22:54:31,151 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:30" (1/1) ... [2024-11-23 22:54:31,153 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:30" (1/1) ... [2024-11-23 22:54:31,157 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:30" (1/1) ... [2024-11-23 22:54:31,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:30" (1/1) ... [2024-11-23 22:54:31,171 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:30" (1/1) ... [2024-11-23 22:54:31,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:54:31,184 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:54:31,184 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:54:31,184 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:54:31,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:30" (1/1) ... [2024-11-23 22:54:31,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:54:31,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:54:31,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:54:31,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:54:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:54:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-23 22:54:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-23 22:54:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-23 22:54:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-23 22:54:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-23 22:54:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-23 22:54:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-23 22:54:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 22:54:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 22:54:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 22:54:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 22:54:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 22:54:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 22:54:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-23 22:54:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-23 22:54:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-23 22:54:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-23 22:54:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-23 22:54:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-23 22:54:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-23 22:54:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-23 22:54:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 22:54:31,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 22:54:31,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 22:54:31,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 22:54:31,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 22:54:31,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 22:54:31,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-23 22:54:31,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-23 22:54:31,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-23 22:54:31,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-23 22:54:31,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-23 22:54:31,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-23 22:54:31,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-23 22:54:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-23 22:54:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:54:31,267 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:54:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:54:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 22:54:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 22:54:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 22:54:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 22:54:31,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 22:54:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-23 22:54:31,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:54:31,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:54:31,474 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:54:31,477 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:54:32,139 INFO L? ?]: Removed 145 outVars from TransFormulas that were not future-live. [2024-11-23 22:54:32,140 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:54:32,152 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:54:32,152 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:54:32,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:54:32 BoogieIcfgContainer [2024-11-23 22:54:32,153 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:54:32,155 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:54:32,155 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:54:32,161 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:54:32,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:54:30" (1/3) ... [2024-11-23 22:54:32,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658e8521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:54:32, skipping insertion in model container [2024-11-23 22:54:32,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:54:30" (2/3) ... [2024-11-23 22:54:32,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658e8521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:54:32, skipping insertion in model container [2024-11-23 22:54:32,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:54:32" (3/3) ... [2024-11-23 22:54:32,163 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-70.i [2024-11-23 22:54:32,181 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:54:32,183 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-70.i that has 2 procedures, 111 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:54:32,251 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:54:32,270 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;@1c111ded, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:54:32,271 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:54:32,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 96 states have (on average 1.4375) internal successors, (138), 97 states have internal predecessors, (138), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:54:32,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-23 22:54:32,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:32,292 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:32,292 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:32,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:32,298 INFO L85 PathProgramCache]: Analyzing trace with hash 610838177, now seen corresponding path program 1 times [2024-11-23 22:54:32,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:32,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929882785] [2024-11-23 22:54:32,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:32,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:32,741 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-23 22:54:32,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:32,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929882785] [2024-11-23 22:54:32,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929882785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:54:32,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933194954] [2024-11-23 22:54:32,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:32,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:32,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:54:32,750 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:54:32,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:54:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:33,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 22:54:33,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:33,123 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-23 22:54:33,123 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:33,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933194954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:33,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:54:33,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 22:54:33,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142103893] [2024-11-23 22:54:33,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:33,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:54:33,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:33,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:54:33,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:54:33,153 INFO L87 Difference]: Start difference. First operand has 111 states, 96 states have (on average 1.4375) internal successors, (138), 97 states have internal predecessors, (138), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:33,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:33,192 INFO L93 Difference]: Finished difference Result 215 states and 330 transitions. [2024-11-23 22:54:33,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:54:33,197 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2024-11-23 22:54:33,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:33,206 INFO L225 Difference]: With dead ends: 215 [2024-11-23 22:54:33,206 INFO L226 Difference]: Without dead ends: 107 [2024-11-23 22:54:33,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:54:33,216 INFO L435 NwaCegarLoop]: 155 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, 155 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:33,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:33,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-23 22:54:33,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-23 22:54:33,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 93 states have (on average 1.4086021505376345) internal successors, (131), 93 states have internal predecessors, (131), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:54:33,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 155 transitions. [2024-11-23 22:54:33,274 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 155 transitions. Word has length 116 [2024-11-23 22:54:33,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:33,275 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 155 transitions. [2024-11-23 22:54:33,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:33,276 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 155 transitions. [2024-11-23 22:54:33,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-23 22:54:33,281 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:33,281 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:33,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 22:54:33,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:33,482 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:33,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:33,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1700543695, now seen corresponding path program 1 times [2024-11-23 22:54:33,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:33,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249264486] [2024-11-23 22:54:33,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:33,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:33,936 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:33,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:33,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249264486] [2024-11-23 22:54:33,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249264486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:33,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:33,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:54:33,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133703445] [2024-11-23 22:54:33,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:33,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:54:33,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:33,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:54:33,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:54:33,939 INFO L87 Difference]: Start difference. First operand 107 states and 155 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:33,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:33,995 INFO L93 Difference]: Finished difference Result 213 states and 310 transitions. [2024-11-23 22:54:33,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:54:33,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2024-11-23 22:54:33,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:33,997 INFO L225 Difference]: With dead ends: 213 [2024-11-23 22:54:33,997 INFO L226 Difference]: Without dead ends: 109 [2024-11-23 22:54:33,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:54:33,998 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:33,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 448 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:34,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-23 22:54:34,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-23 22:54:34,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 95 states have (on average 1.4) internal successors, (133), 95 states have internal predecessors, (133), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:54:34,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2024-11-23 22:54:34,023 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 116 [2024-11-23 22:54:34,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:34,025 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2024-11-23 22:54:34,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:34,025 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2024-11-23 22:54:34,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-23 22:54:34,027 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:34,027 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:34,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 22:54:34,027 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:34,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:34,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1563382703, now seen corresponding path program 1 times [2024-11-23 22:54:34,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:34,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702325460] [2024-11-23 22:54:34,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:34,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:34,504 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 22:54:34,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:34,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702325460] [2024-11-23 22:54:34,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702325460] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:54:34,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311480568] [2024-11-23 22:54:34,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:34,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:34,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:54:34,509 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:54:34,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 22:54:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:34,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:54:34,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:34,841 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:34,841 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:34,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311480568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:34,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:54:34,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-23 22:54:34,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309315123] [2024-11-23 22:54:34,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:34,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:54:34,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:34,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:54:34,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:54:34,847 INFO L87 Difference]: Start difference. First operand 109 states and 157 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:54:34,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:34,905 INFO L93 Difference]: Finished difference Result 218 states and 315 transitions. [2024-11-23 22:54:34,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:54:34,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 116 [2024-11-23 22:54:34,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:34,908 INFO L225 Difference]: With dead ends: 218 [2024-11-23 22:54:34,908 INFO L226 Difference]: Without dead ends: 112 [2024-11-23 22:54:34,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:54:34,909 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 1 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:34,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 445 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:34,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-23 22:54:34,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2024-11-23 22:54:34,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 97 states have (on average 1.3917525773195876) internal successors, (135), 97 states have internal predecessors, (135), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:54:34,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2024-11-23 22:54:34,919 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 116 [2024-11-23 22:54:34,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:34,920 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2024-11-23 22:54:34,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:54:34,920 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2024-11-23 22:54:34,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-23 22:54:34,922 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:34,923 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:34,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 22:54:35,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-23 22:54:35,123 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:35,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:35,125 INFO L85 PathProgramCache]: Analyzing trace with hash -956577231, now seen corresponding path program 1 times [2024-11-23 22:54:35,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:35,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018390207] [2024-11-23 22:54:35,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:35,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:35,410 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 22:54:35,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:35,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018390207] [2024-11-23 22:54:35,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018390207] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:54:35,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479667676] [2024-11-23 22:54:35,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:35,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:35,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:54:35,416 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:54:35,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 22:54:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:35,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:54:35,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:35,709 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:35,709 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:35,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479667676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:35,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:54:35,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-23 22:54:35,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133971631] [2024-11-23 22:54:35,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:35,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:54:35,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:35,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:54:35,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:54:35,711 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:54:35,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:35,749 INFO L93 Difference]: Finished difference Result 222 states and 319 transitions. [2024-11-23 22:54:35,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:54:35,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 116 [2024-11-23 22:54:35,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:35,753 INFO L225 Difference]: With dead ends: 222 [2024-11-23 22:54:35,754 INFO L226 Difference]: Without dead ends: 114 [2024-11-23 22:54:35,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:54:35,758 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 1 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:35,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 448 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:35,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-23 22:54:35,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2024-11-23 22:54:35,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 99 states have (on average 1.3838383838383839) internal successors, (137), 99 states have internal predecessors, (137), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:54:35,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 161 transitions. [2024-11-23 22:54:35,774 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 161 transitions. Word has length 116 [2024-11-23 22:54:35,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:35,774 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 161 transitions. [2024-11-23 22:54:35,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:54:35,775 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 161 transitions. [2024-11-23 22:54:35,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-23 22:54:35,777 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:35,778 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:35,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 22:54:35,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:35,978 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:35,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:35,979 INFO L85 PathProgramCache]: Analyzing trace with hash -954730189, now seen corresponding path program 1 times [2024-11-23 22:54:35,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:35,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952137722] [2024-11-23 22:54:35,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:35,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:36,272 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 22:54:36,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:36,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952137722] [2024-11-23 22:54:36,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952137722] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:54:36,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138640696] [2024-11-23 22:54:36,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:36,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:36,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:54:36,275 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:54:36,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 22:54:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:36,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:54:36,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:36,589 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:36,589 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:36,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138640696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:36,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:54:36,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-23 22:54:36,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265638774] [2024-11-23 22:54:36,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:36,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:54:36,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:36,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:54:36,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:54:36,592 INFO L87 Difference]: Start difference. First operand 113 states and 161 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:54:36,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:36,630 INFO L93 Difference]: Finished difference Result 225 states and 322 transitions. [2024-11-23 22:54:36,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:54:36,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 116 [2024-11-23 22:54:36,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:36,633 INFO L225 Difference]: With dead ends: 225 [2024-11-23 22:54:36,633 INFO L226 Difference]: Without dead ends: 115 [2024-11-23 22:54:36,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:54:36,637 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:36,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 448 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:36,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-23 22:54:36,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-23 22:54:36,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 101 states have (on average 1.3762376237623761) internal successors, (139), 101 states have internal predecessors, (139), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:54:36,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 163 transitions. [2024-11-23 22:54:36,653 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 163 transitions. Word has length 116 [2024-11-23 22:54:36,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:36,654 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 163 transitions. [2024-11-23 22:54:36,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:54:36,654 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 163 transitions. [2024-11-23 22:54:36,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-23 22:54:36,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:36,660 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:36,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 22:54:36,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:36,861 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:36,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:36,861 INFO L85 PathProgramCache]: Analyzing trace with hash -677490194, now seen corresponding path program 1 times [2024-11-23 22:54:36,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:36,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437176595] [2024-11-23 22:54:36,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:36,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:37,763 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:37,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:37,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437176595] [2024-11-23 22:54:37,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437176595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:37,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:37,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:54:37,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85104955] [2024-11-23 22:54:37,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:37,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:54:37,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:37,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:54:37,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:54:37,766 INFO L87 Difference]: Start difference. First operand 115 states and 163 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:37,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:37,869 INFO L93 Difference]: Finished difference Result 286 states and 406 transitions. [2024-11-23 22:54:37,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:54:37,869 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2024-11-23 22:54:37,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:37,871 INFO L225 Difference]: With dead ends: 286 [2024-11-23 22:54:37,871 INFO L226 Difference]: Without dead ends: 174 [2024-11-23 22:54:37,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:54:37,872 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 75 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:37,872 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 716 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:54:37,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-23 22:54:37,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 118. [2024-11-23 22:54:37,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 104 states have (on average 1.3653846153846154) internal successors, (142), 104 states have internal predecessors, (142), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:54:37,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 166 transitions. [2024-11-23 22:54:37,882 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 166 transitions. Word has length 118 [2024-11-23 22:54:37,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:37,882 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 166 transitions. [2024-11-23 22:54:37,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:37,883 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 166 transitions. [2024-11-23 22:54:37,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-23 22:54:37,884 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:37,885 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:37,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 22:54:37,885 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:37,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:37,886 INFO L85 PathProgramCache]: Analyzing trace with hash -474901970, now seen corresponding path program 1 times [2024-11-23 22:54:37,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:37,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782383205] [2024-11-23 22:54:37,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:37,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:38,194 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:38,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:38,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782383205] [2024-11-23 22:54:38,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782383205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:38,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:38,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:54:38,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417330016] [2024-11-23 22:54:38,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:38,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:54:38,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:38,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:54:38,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:54:38,201 INFO L87 Difference]: Start difference. First operand 118 states and 166 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:54:38,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:38,323 INFO L93 Difference]: Finished difference Result 233 states and 329 transitions. [2024-11-23 22:54:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:54:38,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-23 22:54:38,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:38,327 INFO L225 Difference]: With dead ends: 233 [2024-11-23 22:54:38,328 INFO L226 Difference]: Without dead ends: 118 [2024-11-23 22:54:38,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:54:38,329 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:38,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 402 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:54:38,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-23 22:54:38,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-23 22:54:38,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 104 states have (on average 1.3557692307692308) internal successors, (141), 104 states have internal predecessors, (141), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:54:38,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 165 transitions. [2024-11-23 22:54:38,345 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 165 transitions. Word has length 118 [2024-11-23 22:54:38,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:38,345 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 165 transitions. [2024-11-23 22:54:38,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:54:38,346 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 165 transitions. [2024-11-23 22:54:38,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-23 22:54:38,351 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:38,351 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:38,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 22:54:38,351 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:38,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:38,351 INFO L85 PathProgramCache]: Analyzing trace with hash -457434393, now seen corresponding path program 1 times [2024-11-23 22:54:38,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:38,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535726608] [2024-11-23 22:54:38,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:38,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:38,741 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:38,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:38,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535726608] [2024-11-23 22:54:38,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535726608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:38,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:38,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:54:38,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509013959] [2024-11-23 22:54:38,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:38,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:54:38,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:38,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:54:38,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:54:38,743 INFO L87 Difference]: Start difference. First operand 118 states and 165 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:54:38,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:38,831 INFO L93 Difference]: Finished difference Result 233 states and 327 transitions. [2024-11-23 22:54:38,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:54:38,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 120 [2024-11-23 22:54:38,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:38,833 INFO L225 Difference]: With dead ends: 233 [2024-11-23 22:54:38,833 INFO L226 Difference]: Without dead ends: 118 [2024-11-23 22:54:38,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:54:38,834 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:38,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 397 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:54:38,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-23 22:54:38,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-23 22:54:38,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 104 states have (on average 1.3461538461538463) internal successors, (140), 104 states have internal predecessors, (140), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:54:38,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 164 transitions. [2024-11-23 22:54:38,842 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 164 transitions. Word has length 120 [2024-11-23 22:54:38,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:38,842 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 164 transitions. [2024-11-23 22:54:38,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:54:38,843 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 164 transitions. [2024-11-23 22:54:38,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-23 22:54:38,844 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:38,844 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:38,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 22:54:38,845 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:38,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:38,845 INFO L85 PathProgramCache]: Analyzing trace with hash -2146378135, now seen corresponding path program 1 times [2024-11-23 22:54:38,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:38,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611985890] [2024-11-23 22:54:38,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:38,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:39,472 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:39,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:39,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611985890] [2024-11-23 22:54:39,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611985890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:39,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:39,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:54:39,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361405801] [2024-11-23 22:54:39,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:39,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:54:39,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:39,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:54:39,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:54:39,476 INFO L87 Difference]: Start difference. First operand 118 states and 164 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:39,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:39,579 INFO L93 Difference]: Finished difference Result 285 states and 394 transitions. [2024-11-23 22:54:39,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:54:39,580 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2024-11-23 22:54:39,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:39,581 INFO L225 Difference]: With dead ends: 285 [2024-11-23 22:54:39,581 INFO L226 Difference]: Without dead ends: 170 [2024-11-23 22:54:39,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:54:39,582 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 56 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:39,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 709 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:54:39,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-23 22:54:39,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 133. [2024-11-23 22:54:39,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 119 states have (on average 1.3361344537815125) internal successors, (159), 119 states have internal predecessors, (159), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:54:39,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 183 transitions. [2024-11-23 22:54:39,596 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 183 transitions. Word has length 120 [2024-11-23 22:54:39,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:39,597 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 183 transitions. [2024-11-23 22:54:39,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:39,597 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 183 transitions. [2024-11-23 22:54:39,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-23 22:54:39,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:39,599 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:39,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 22:54:39,599 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:39,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:39,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1107267357, now seen corresponding path program 1 times [2024-11-23 22:54:39,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:39,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390660389] [2024-11-23 22:54:39,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:39,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:40,193 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:40,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:40,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390660389] [2024-11-23 22:54:40,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390660389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:40,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:40,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:54:40,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954481941] [2024-11-23 22:54:40,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:40,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:54:40,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:40,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:54:40,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:54:40,196 INFO L87 Difference]: Start difference. First operand 133 states and 183 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:40,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:40,287 INFO L93 Difference]: Finished difference Result 301 states and 414 transitions. [2024-11-23 22:54:40,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:54:40,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2024-11-23 22:54:40,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:40,290 INFO L225 Difference]: With dead ends: 301 [2024-11-23 22:54:40,290 INFO L226 Difference]: Without dead ends: 171 [2024-11-23 22:54:40,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:54:40,291 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 52 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:40,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 705 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:54:40,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-23 22:54:40,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 137. [2024-11-23 22:54:40,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 123 states have (on average 1.3252032520325203) internal successors, (163), 123 states have internal predecessors, (163), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:54:40,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 187 transitions. [2024-11-23 22:54:40,303 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 187 transitions. Word has length 121 [2024-11-23 22:54:40,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:40,304 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 187 transitions. [2024-11-23 22:54:40,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:40,304 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 187 transitions. [2024-11-23 22:54:40,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-23 22:54:40,305 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:40,305 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:40,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 22:54:40,306 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:40,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:40,306 INFO L85 PathProgramCache]: Analyzing trace with hash 896719011, now seen corresponding path program 1 times [2024-11-23 22:54:40,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:40,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347721320] [2024-11-23 22:54:40,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:40,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:40,567 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 22:54:40,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:40,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347721320] [2024-11-23 22:54:40,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347721320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:54:40,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409389964] [2024-11-23 22:54:40,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:40,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:40,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:54:40,570 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:54:40,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 22:54:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:40,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 22:54:40,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:54:40,887 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:40,887 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:54:40,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409389964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:40,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:54:40,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-23 22:54:40,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042809128] [2024-11-23 22:54:40,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:40,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:54:40,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:40,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:54:40,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:54:40,892 INFO L87 Difference]: Start difference. First operand 137 states and 187 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:54:40,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:40,935 INFO L93 Difference]: Finished difference Result 274 states and 375 transitions. [2024-11-23 22:54:40,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:54:40,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-23 22:54:40,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:40,936 INFO L225 Difference]: With dead ends: 274 [2024-11-23 22:54:40,937 INFO L226 Difference]: Without dead ends: 140 [2024-11-23 22:54:40,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:54:40,937 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:40,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 583 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:54:40,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-23 22:54:40,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2024-11-23 22:54:40,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 126 states have (on average 1.3174603174603174) internal successors, (166), 126 states have internal predecessors, (166), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:54:40,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 190 transitions. [2024-11-23 22:54:40,944 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 190 transitions. Word has length 121 [2024-11-23 22:54:40,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:40,945 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 190 transitions. [2024-11-23 22:54:40,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:54:40,945 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 190 transitions. [2024-11-23 22:54:40,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-23 22:54:40,947 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:40,947 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:40,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-23 22:54:41,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:54:41,148 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:41,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:41,148 INFO L85 PathProgramCache]: Analyzing trace with hash 289270958, now seen corresponding path program 1 times [2024-11-23 22:54:41,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:41,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771675076] [2024-11-23 22:54:41,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:41,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:43,393 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:43,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:43,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771675076] [2024-11-23 22:54:43,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771675076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:43,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:43,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 22:54:43,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818763809] [2024-11-23 22:54:43,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:43,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 22:54:43,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:43,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 22:54:43,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:54:43,397 INFO L87 Difference]: Start difference. First operand 140 states and 190 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:45,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:45,111 INFO L93 Difference]: Finished difference Result 502 states and 688 transitions. [2024-11-23 22:54:45,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 22:54:45,112 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2024-11-23 22:54:45,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:45,114 INFO L225 Difference]: With dead ends: 502 [2024-11-23 22:54:45,115 INFO L226 Difference]: Without dead ends: 365 [2024-11-23 22:54:45,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-11-23 22:54:45,116 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 374 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 2038 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:45,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 2038 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 22:54:45,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-23 22:54:45,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 160. [2024-11-23 22:54:45,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 146 states have (on average 1.3287671232876712) internal successors, (194), 146 states have internal predecessors, (194), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:54:45,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 218 transitions. [2024-11-23 22:54:45,133 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 218 transitions. Word has length 122 [2024-11-23 22:54:45,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:45,133 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 218 transitions. [2024-11-23 22:54:45,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:45,134 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 218 transitions. [2024-11-23 22:54:45,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-23 22:54:45,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:45,135 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:45,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 22:54:45,136 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:45,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:45,136 INFO L85 PathProgramCache]: Analyzing trace with hash -731797396, now seen corresponding path program 1 times [2024-11-23 22:54:45,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:45,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42513738] [2024-11-23 22:54:45,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:45,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:45,653 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:45,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:45,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42513738] [2024-11-23 22:54:45,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42513738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:45,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:45,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:54:45,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561049990] [2024-11-23 22:54:45,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:45,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:54:45,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:45,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:54:45,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:54:45,656 INFO L87 Difference]: Start difference. First operand 160 states and 218 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:45,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:45,901 INFO L93 Difference]: Finished difference Result 420 states and 575 transitions. [2024-11-23 22:54:45,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:54:45,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2024-11-23 22:54:45,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:45,904 INFO L225 Difference]: With dead ends: 420 [2024-11-23 22:54:45,904 INFO L226 Difference]: Without dead ends: 263 [2024-11-23 22:54:45,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:54:45,905 INFO L435 NwaCegarLoop]: 266 mSDtfsCounter, 124 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:45,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1115 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:54:45,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-23 22:54:45,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 260. [2024-11-23 22:54:45,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 235 states have (on average 1.327659574468085) internal successors, (312), 236 states have internal predecessors, (312), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:54:45,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 356 transitions. [2024-11-23 22:54:45,924 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 356 transitions. Word has length 122 [2024-11-23 22:54:45,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:45,924 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 356 transitions. [2024-11-23 22:54:45,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:45,925 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 356 transitions. [2024-11-23 22:54:45,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-23 22:54:45,926 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:45,927 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:45,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 22:54:45,927 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:45,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:45,928 INFO L85 PathProgramCache]: Analyzing trace with hash 990870832, now seen corresponding path program 1 times [2024-11-23 22:54:45,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:45,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624402008] [2024-11-23 22:54:45,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:45,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:46,668 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:46,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:46,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624402008] [2024-11-23 22:54:46,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624402008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:46,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:46,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:54:46,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205183096] [2024-11-23 22:54:46,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:46,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:54:46,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:46,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:54:46,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:54:46,671 INFO L87 Difference]: Start difference. First operand 260 states and 356 transitions. Second operand has 7 states, 5 states have (on average 13.0) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 22:54:46,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:46,969 INFO L93 Difference]: Finished difference Result 597 states and 819 transitions. [2024-11-23 22:54:46,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:54:46,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 13.0) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) Word has length 122 [2024-11-23 22:54:46,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:46,973 INFO L225 Difference]: With dead ends: 597 [2024-11-23 22:54:46,974 INFO L226 Difference]: Without dead ends: 340 [2024-11-23 22:54:46,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:54:46,975 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 126 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:46,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 930 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:54:46,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-23 22:54:46,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 250. [2024-11-23 22:54:46,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 225 states have (on average 1.32) internal successors, (297), 226 states have internal predecessors, (297), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:54:46,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 341 transitions. [2024-11-23 22:54:46,995 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 341 transitions. Word has length 122 [2024-11-23 22:54:46,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:46,996 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 341 transitions. [2024-11-23 22:54:46,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 13.0) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 22:54:46,996 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 341 transitions. [2024-11-23 22:54:46,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-23 22:54:46,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:46,998 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:46,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 22:54:46,998 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:46,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:46,999 INFO L85 PathProgramCache]: Analyzing trace with hash -30197522, now seen corresponding path program 1 times [2024-11-23 22:54:46,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:46,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196786350] [2024-11-23 22:54:46,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:46,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:47,798 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:47,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:47,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196786350] [2024-11-23 22:54:47,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196786350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:47,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:47,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:54:47,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550624602] [2024-11-23 22:54:47,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:47,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:54:47,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:47,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:54:47,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:54:47,800 INFO L87 Difference]: Start difference. First operand 250 states and 341 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:48,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:48,223 INFO L93 Difference]: Finished difference Result 587 states and 803 transitions. [2024-11-23 22:54:48,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:54:48,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2024-11-23 22:54:48,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:48,227 INFO L225 Difference]: With dead ends: 587 [2024-11-23 22:54:48,227 INFO L226 Difference]: Without dead ends: 340 [2024-11-23 22:54:48,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:54:48,228 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 133 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:48,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1185 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 22:54:48,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-23 22:54:48,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 249. [2024-11-23 22:54:48,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 224 states have (on average 1.3169642857142858) internal successors, (295), 225 states have internal predecessors, (295), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:54:48,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 339 transitions. [2024-11-23 22:54:48,268 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 339 transitions. Word has length 122 [2024-11-23 22:54:48,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:48,269 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 339 transitions. [2024-11-23 22:54:48,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:48,270 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 339 transitions. [2024-11-23 22:54:48,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-23 22:54:48,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:48,272 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:48,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 22:54:48,273 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:48,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:48,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1893030512, now seen corresponding path program 1 times [2024-11-23 22:54:48,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:48,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667929055] [2024-11-23 22:54:48,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:48,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:51,260 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:51,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:51,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667929055] [2024-11-23 22:54:51,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667929055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:51,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:51,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 22:54:51,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339011063] [2024-11-23 22:54:51,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:51,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 22:54:51,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:51,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 22:54:51,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:54:51,263 INFO L87 Difference]: Start difference. First operand 249 states and 339 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:54,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:54,427 INFO L93 Difference]: Finished difference Result 689 states and 941 transitions. [2024-11-23 22:54:54,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 22:54:54,428 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2024-11-23 22:54:54,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:54,433 INFO L225 Difference]: With dead ends: 689 [2024-11-23 22:54:54,434 INFO L226 Difference]: Without dead ends: 443 [2024-11-23 22:54:54,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2024-11-23 22:54:54,436 INFO L435 NwaCegarLoop]: 346 mSDtfsCounter, 251 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 2984 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:54,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 2984 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-23 22:54:54,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-23 22:54:54,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 261. [2024-11-23 22:54:54,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 236 states have (on average 1.3177966101694916) internal successors, (311), 237 states have internal predecessors, (311), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:54:54,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 355 transitions. [2024-11-23 22:54:54,506 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 355 transitions. Word has length 122 [2024-11-23 22:54:54,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:54,507 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 355 transitions. [2024-11-23 22:54:54,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:54,507 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 355 transitions. [2024-11-23 22:54:54,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-23 22:54:54,509 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:54,509 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:54,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 22:54:54,510 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:54,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:54,510 INFO L85 PathProgramCache]: Analyzing trace with hash 724944658, now seen corresponding path program 1 times [2024-11-23 22:54:54,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:54,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875167827] [2024-11-23 22:54:54,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:54,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:54,918 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:54,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:54,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875167827] [2024-11-23 22:54:54,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875167827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:54,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:54,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:54:54,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133826402] [2024-11-23 22:54:54,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:54,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:54:54,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:54,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:54:54,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:54:54,921 INFO L87 Difference]: Start difference. First operand 261 states and 355 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:54:55,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:55,260 INFO L93 Difference]: Finished difference Result 702 states and 959 transitions. [2024-11-23 22:54:55,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:54:55,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 123 [2024-11-23 22:54:55,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:55,263 INFO L225 Difference]: With dead ends: 702 [2024-11-23 22:54:55,263 INFO L226 Difference]: Without dead ends: 444 [2024-11-23 22:54:55,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:54:55,264 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 136 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:55,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 780 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:54:55,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-11-23 22:54:55,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 263. [2024-11-23 22:54:55,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 238 states have (on average 1.3067226890756303) internal successors, (311), 239 states have internal predecessors, (311), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:54:55,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 355 transitions. [2024-11-23 22:54:55,299 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 355 transitions. Word has length 123 [2024-11-23 22:54:55,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:55,299 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 355 transitions. [2024-11-23 22:54:55,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:54:55,299 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 355 transitions. [2024-11-23 22:54:55,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-23 22:54:55,301 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:55,301 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:55,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 22:54:55,301 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:55,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:55,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1383410494, now seen corresponding path program 1 times [2024-11-23 22:54:55,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:55,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796555634] [2024-11-23 22:54:55,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:55,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:55,601 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:55,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:55,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796555634] [2024-11-23 22:54:55,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796555634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:55,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:55,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:54:55,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028503362] [2024-11-23 22:54:55,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:55,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:54:55,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:55,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:54:55,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:54:55,603 INFO L87 Difference]: Start difference. First operand 263 states and 355 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:54:55,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:55,773 INFO L93 Difference]: Finished difference Result 785 states and 1062 transitions. [2024-11-23 22:54:55,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:54:55,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 123 [2024-11-23 22:54:55,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:55,778 INFO L225 Difference]: With dead ends: 785 [2024-11-23 22:54:55,778 INFO L226 Difference]: Without dead ends: 525 [2024-11-23 22:54:55,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:54:55,780 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 136 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:55,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1252 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:54:55,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-11-23 22:54:55,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 520. [2024-11-23 22:54:55,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 471 states have (on average 1.3099787685774946) internal successors, (617), 473 states have internal predecessors, (617), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-23 22:54:55,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 705 transitions. [2024-11-23 22:54:55,854 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 705 transitions. Word has length 123 [2024-11-23 22:54:55,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:55,857 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 705 transitions. [2024-11-23 22:54:55,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:54:55,858 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 705 transitions. [2024-11-23 22:54:55,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-23 22:54:55,860 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:55,860 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:55,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 22:54:55,861 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:55,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:55,861 INFO L85 PathProgramCache]: Analyzing trace with hash 873937404, now seen corresponding path program 1 times [2024-11-23 22:54:55,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:55,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789710336] [2024-11-23 22:54:55,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:55,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:56,260 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:54:56,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:56,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789710336] [2024-11-23 22:54:56,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789710336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:56,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:56,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:54:56,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415061752] [2024-11-23 22:54:56,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:56,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:54:56,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:56,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:54:56,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:54:56,263 INFO L87 Difference]: Start difference. First operand 520 states and 705 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:56,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:56,402 INFO L93 Difference]: Finished difference Result 1041 states and 1410 transitions. [2024-11-23 22:54:56,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:54:56,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2024-11-23 22:54:56,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:56,406 INFO L225 Difference]: With dead ends: 1041 [2024-11-23 22:54:56,406 INFO L226 Difference]: Without dead ends: 524 [2024-11-23 22:54:56,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:54:56,409 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 61 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:56,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 866 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:54:56,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2024-11-23 22:54:56,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 520. [2024-11-23 22:54:56,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 471 states have (on average 1.2929936305732483) internal successors, (609), 473 states have internal predecessors, (609), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-23 22:54:56,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 697 transitions. [2024-11-23 22:54:56,480 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 697 transitions. Word has length 123 [2024-11-23 22:54:56,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:56,480 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 697 transitions. [2024-11-23 22:54:56,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:54:56,481 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 697 transitions. [2024-11-23 22:54:56,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 22:54:56,482 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:56,482 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:56,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 22:54:56,483 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:56,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:56,483 INFO L85 PathProgramCache]: Analyzing trace with hash 809826068, now seen corresponding path program 1 times [2024-11-23 22:54:56,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:56,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519879016] [2024-11-23 22:54:56,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:56,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:01,686 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:01,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:01,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519879016] [2024-11-23 22:55:01,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519879016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:01,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:01,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 22:55:01,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044954846] [2024-11-23 22:55:01,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:01,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 22:55:01,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:01,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 22:55:01,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:55:01,689 INFO L87 Difference]: Start difference. First operand 520 states and 697 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 12 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:05,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:05,560 INFO L93 Difference]: Finished difference Result 1232 states and 1656 transitions. [2024-11-23 22:55:05,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 22:55:05,561 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 12 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2024-11-23 22:55:05,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:05,565 INFO L225 Difference]: With dead ends: 1232 [2024-11-23 22:55:05,565 INFO L226 Difference]: Without dead ends: 715 [2024-11-23 22:55:05,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:55:05,567 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 125 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1878 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:05,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 1878 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-23 22:55:05,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-23 22:55:05,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 683. [2024-11-23 22:55:05,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 606 states have (on average 1.301980198019802) internal successors, (789), 610 states have internal predecessors, (789), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 64 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-23 22:55:05,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 925 transitions. [2024-11-23 22:55:05,704 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 925 transitions. Word has length 124 [2024-11-23 22:55:05,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:05,705 INFO L471 AbstractCegarLoop]: Abstraction has 683 states and 925 transitions. [2024-11-23 22:55:05,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 12 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:05,705 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 925 transitions. [2024-11-23 22:55:05,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 22:55:05,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:05,707 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:05,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 22:55:05,708 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:05,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:05,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1102574550, now seen corresponding path program 1 times [2024-11-23 22:55:05,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:05,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125990095] [2024-11-23 22:55:05,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:05,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:07,779 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:07,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:07,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125990095] [2024-11-23 22:55:07,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125990095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:07,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:07,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 22:55:07,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446452342] [2024-11-23 22:55:07,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:07,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 22:55:07,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:07,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 22:55:07,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:55:07,782 INFO L87 Difference]: Start difference. First operand 683 states and 925 transitions. Second operand has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 12 states have internal predecessors, (67), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-23 22:55:09,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:09,150 INFO L93 Difference]: Finished difference Result 1412 states and 1915 transitions. [2024-11-23 22:55:09,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 22:55:09,151 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 12 states have internal predecessors, (67), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 4 states have call successors, (12) Word has length 124 [2024-11-23 22:55:09,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:09,157 INFO L225 Difference]: With dead ends: 1412 [2024-11-23 22:55:09,157 INFO L226 Difference]: Without dead ends: 732 [2024-11-23 22:55:09,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:55:09,161 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 118 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 2276 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:09,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 2276 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 22:55:09,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-11-23 22:55:09,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 655. [2024-11-23 22:55:09,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 578 states have (on average 1.3044982698961938) internal successors, (754), 582 states have internal predecessors, (754), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 64 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-23 22:55:09,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 890 transitions. [2024-11-23 22:55:09,290 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 890 transitions. Word has length 124 [2024-11-23 22:55:09,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:09,292 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 890 transitions. [2024-11-23 22:55:09,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 12 states have internal predecessors, (67), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-23 22:55:09,293 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 890 transitions. [2024-11-23 22:55:09,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 22:55:09,294 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:09,295 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:09,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 22:55:09,296 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:09,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:09,297 INFO L85 PathProgramCache]: Analyzing trace with hash 266591201, now seen corresponding path program 1 times [2024-11-23 22:55:09,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:09,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841706771] [2024-11-23 22:55:09,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:09,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:10,756 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:10,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:10,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841706771] [2024-11-23 22:55:10,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841706771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:10,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:10,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 22:55:10,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548177706] [2024-11-23 22:55:10,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:10,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 22:55:10,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:10,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 22:55:10,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:55:10,759 INFO L87 Difference]: Start difference. First operand 655 states and 890 transitions. Second operand has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 12 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:12,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:12,739 INFO L93 Difference]: Finished difference Result 1699 states and 2310 transitions. [2024-11-23 22:55:12,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 22:55:12,745 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 12 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2024-11-23 22:55:12,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:12,753 INFO L225 Difference]: With dead ends: 1699 [2024-11-23 22:55:12,754 INFO L226 Difference]: Without dead ends: 1047 [2024-11-23 22:55:12,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-11-23 22:55:12,759 INFO L435 NwaCegarLoop]: 356 mSDtfsCounter, 422 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 2489 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:12,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 2489 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 22:55:12,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2024-11-23 22:55:12,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 697. [2024-11-23 22:55:12,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 620 states have (on average 1.3) internal successors, (806), 624 states have internal predecessors, (806), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 64 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-23 22:55:12,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 942 transitions. [2024-11-23 22:55:12,921 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 942 transitions. Word has length 125 [2024-11-23 22:55:12,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:12,921 INFO L471 AbstractCegarLoop]: Abstraction has 697 states and 942 transitions. [2024-11-23 22:55:12,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 12 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:12,922 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 942 transitions. [2024-11-23 22:55:12,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 22:55:12,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:12,924 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:12,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 22:55:12,925 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:12,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:12,926 INFO L85 PathProgramCache]: Analyzing trace with hash 968191075, now seen corresponding path program 1 times [2024-11-23 22:55:12,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:12,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235425474] [2024-11-23 22:55:12,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:12,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:13,424 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:13,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:13,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235425474] [2024-11-23 22:55:13,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235425474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:13,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:13,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:55:13,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956317297] [2024-11-23 22:55:13,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:13,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:55:13,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:13,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:55:13,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:55:13,427 INFO L87 Difference]: Start difference. First operand 697 states and 942 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:13,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:13,643 INFO L93 Difference]: Finished difference Result 1368 states and 1850 transitions. [2024-11-23 22:55:13,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:55:13,644 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2024-11-23 22:55:13,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:13,651 INFO L225 Difference]: With dead ends: 1368 [2024-11-23 22:55:13,651 INFO L226 Difference]: Without dead ends: 674 [2024-11-23 22:55:13,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:55:13,654 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 70 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:13,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 855 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:55:13,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-11-23 22:55:13,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 670. [2024-11-23 22:55:13,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 593 states have (on average 1.2951096121416525) internal successors, (768), 597 states have internal predecessors, (768), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 64 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-23 22:55:13,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 904 transitions. [2024-11-23 22:55:13,790 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 904 transitions. Word has length 125 [2024-11-23 22:55:13,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:13,790 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 904 transitions. [2024-11-23 22:55:13,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:13,791 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 904 transitions. [2024-11-23 22:55:13,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 22:55:13,792 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:13,793 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:13,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 22:55:13,794 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:13,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:13,794 INFO L85 PathProgramCache]: Analyzing trace with hash 628631457, now seen corresponding path program 1 times [2024-11-23 22:55:13,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:13,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903756246] [2024-11-23 22:55:13,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:13,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:14,679 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:14,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:14,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903756246] [2024-11-23 22:55:14,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903756246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:14,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:14,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:55:14,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560795522] [2024-11-23 22:55:14,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:14,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:55:14,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:14,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:55:14,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:55:14,683 INFO L87 Difference]: Start difference. First operand 670 states and 904 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:15,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:15,592 INFO L93 Difference]: Finished difference Result 1835 states and 2490 transitions. [2024-11-23 22:55:15,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 22:55:15,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 125 [2024-11-23 22:55:15,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:15,599 INFO L225 Difference]: With dead ends: 1835 [2024-11-23 22:55:15,599 INFO L226 Difference]: Without dead ends: 1168 [2024-11-23 22:55:15,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:55:15,601 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 238 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:15,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 1398 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 22:55:15,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2024-11-23 22:55:15,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 346. [2024-11-23 22:55:15,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 307 states have (on average 1.289902280130293) internal successors, (396), 309 states have internal predecessors, (396), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-23 22:55:15,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 464 transitions. [2024-11-23 22:55:15,692 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 464 transitions. Word has length 125 [2024-11-23 22:55:15,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:15,693 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 464 transitions. [2024-11-23 22:55:15,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:15,693 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 464 transitions. [2024-11-23 22:55:15,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 22:55:15,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:15,695 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:15,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-23 22:55:15,695 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:15,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:15,696 INFO L85 PathProgramCache]: Analyzing trace with hash -41180409, now seen corresponding path program 1 times [2024-11-23 22:55:15,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:15,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880496721] [2024-11-23 22:55:15,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:15,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:16,208 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:16,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:16,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880496721] [2024-11-23 22:55:16,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880496721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:16,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:16,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:55:16,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304682946] [2024-11-23 22:55:16,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:16,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:55:16,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:16,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:55:16,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:55:16,211 INFO L87 Difference]: Start difference. First operand 346 states and 464 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:16,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:16,722 INFO L93 Difference]: Finished difference Result 991 states and 1334 transitions. [2024-11-23 22:55:16,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:55:16,723 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2024-11-23 22:55:16,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:16,727 INFO L225 Difference]: With dead ends: 991 [2024-11-23 22:55:16,727 INFO L226 Difference]: Without dead ends: 648 [2024-11-23 22:55:16,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:55:16,729 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 119 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:16,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1164 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:55:16,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2024-11-23 22:55:16,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 422. [2024-11-23 22:55:16,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 383 states have (on average 1.2715404699738904) internal successors, (487), 385 states have internal predecessors, (487), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-23 22:55:16,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 555 transitions. [2024-11-23 22:55:16,810 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 555 transitions. Word has length 125 [2024-11-23 22:55:16,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:16,811 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 555 transitions. [2024-11-23 22:55:16,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:16,811 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 555 transitions. [2024-11-23 22:55:16,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-23 22:55:16,813 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:16,813 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:16,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-23 22:55:16,813 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:16,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:16,814 INFO L85 PathProgramCache]: Analyzing trace with hash -476384479, now seen corresponding path program 1 times [2024-11-23 22:55:16,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:16,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767734252] [2024-11-23 22:55:16,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:16,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:17,425 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:17,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:17,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767734252] [2024-11-23 22:55:17,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767734252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:17,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:17,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:55:17,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924942508] [2024-11-23 22:55:17,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:17,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:55:17,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:17,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:55:17,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:55:17,429 INFO L87 Difference]: Start difference. First operand 422 states and 555 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:17,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:17,780 INFO L93 Difference]: Finished difference Result 1067 states and 1422 transitions. [2024-11-23 22:55:17,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:55:17,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 127 [2024-11-23 22:55:17,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:17,784 INFO L225 Difference]: With dead ends: 1067 [2024-11-23 22:55:17,784 INFO L226 Difference]: Without dead ends: 648 [2024-11-23 22:55:17,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:55:17,786 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 116 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:17,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 755 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:55:17,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2024-11-23 22:55:17,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 422. [2024-11-23 22:55:17,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 383 states have (on average 1.2637075718015667) internal successors, (484), 385 states have internal predecessors, (484), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-23 22:55:17,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 552 transitions. [2024-11-23 22:55:17,859 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 552 transitions. Word has length 127 [2024-11-23 22:55:17,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:17,859 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 552 transitions. [2024-11-23 22:55:17,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:17,859 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 552 transitions. [2024-11-23 22:55:17,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-23 22:55:17,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:17,861 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:17,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-23 22:55:17,861 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:17,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:17,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1705486478, now seen corresponding path program 1 times [2024-11-23 22:55:17,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:17,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207987160] [2024-11-23 22:55:17,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:17,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:18,896 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:18,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:18,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207987160] [2024-11-23 22:55:18,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207987160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:18,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:18,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 22:55:18,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815399258] [2024-11-23 22:55:18,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:18,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 22:55:18,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:18,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 22:55:18,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:55:18,899 INFO L87 Difference]: Start difference. First operand 422 states and 552 transitions. Second operand has 11 states, 9 states have (on average 7.777777777777778) internal successors, (70), 11 states have internal predecessors, (70), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 22:55:19,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:19,767 INFO L93 Difference]: Finished difference Result 1186 states and 1567 transitions. [2024-11-23 22:55:19,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 22:55:19,769 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.777777777777778) internal successors, (70), 11 states have internal predecessors, (70), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) Word has length 127 [2024-11-23 22:55:19,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:19,773 INFO L225 Difference]: With dead ends: 1186 [2024-11-23 22:55:19,773 INFO L226 Difference]: Without dead ends: 767 [2024-11-23 22:55:19,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:55:19,775 INFO L435 NwaCegarLoop]: 277 mSDtfsCounter, 320 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:19,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 1994 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 22:55:19,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-11-23 22:55:19,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 634. [2024-11-23 22:55:19,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 571 states have (on average 1.2644483362521892) internal successors, (722), 574 states have internal predecessors, (722), 56 states have call successors, (56), 6 states have call predecessors, (56), 6 states have return successors, (56), 53 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-23 22:55:19,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 834 transitions. [2024-11-23 22:55:19,894 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 834 transitions. Word has length 127 [2024-11-23 22:55:19,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:19,894 INFO L471 AbstractCegarLoop]: Abstraction has 634 states and 834 transitions. [2024-11-23 22:55:19,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.777777777777778) internal successors, (70), 11 states have internal predecessors, (70), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 22:55:19,895 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 834 transitions. [2024-11-23 22:55:19,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-23 22:55:19,896 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:19,896 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:19,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-23 22:55:19,897 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:19,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:19,897 INFO L85 PathProgramCache]: Analyzing trace with hash -713714638, now seen corresponding path program 1 times [2024-11-23 22:55:19,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:19,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176404019] [2024-11-23 22:55:19,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:19,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:20,240 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:20,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:20,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176404019] [2024-11-23 22:55:20,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176404019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:20,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:20,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:55:20,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145982192] [2024-11-23 22:55:20,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:20,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:55:20,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:20,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:55:20,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:55:20,242 INFO L87 Difference]: Start difference. First operand 634 states and 834 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:20,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:20,443 INFO L93 Difference]: Finished difference Result 1270 states and 1670 transitions. [2024-11-23 22:55:20,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:55:20,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 128 [2024-11-23 22:55:20,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:20,446 INFO L225 Difference]: With dead ends: 1270 [2024-11-23 22:55:20,447 INFO L226 Difference]: Without dead ends: 639 [2024-11-23 22:55:20,448 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:55:20,449 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:20,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 551 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:55:20,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-11-23 22:55:20,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 626. [2024-11-23 22:55:20,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 563 states have (on average 1.2611012433392539) internal successors, (710), 566 states have internal predecessors, (710), 56 states have call successors, (56), 6 states have call predecessors, (56), 6 states have return successors, (56), 53 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-23 22:55:20,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 822 transitions. [2024-11-23 22:55:20,569 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 822 transitions. Word has length 128 [2024-11-23 22:55:20,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:20,570 INFO L471 AbstractCegarLoop]: Abstraction has 626 states and 822 transitions. [2024-11-23 22:55:20,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:20,570 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 822 transitions. [2024-11-23 22:55:20,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-23 22:55:20,572 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:20,572 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:20,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-23 22:55:20,572 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:20,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:20,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1730770733, now seen corresponding path program 1 times [2024-11-23 22:55:20,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:20,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958049189] [2024-11-23 22:55:20,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:20,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:21,231 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:21,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:21,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958049189] [2024-11-23 22:55:21,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958049189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:21,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:21,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 22:55:21,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841649220] [2024-11-23 22:55:21,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:21,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 22:55:21,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:21,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 22:55:21,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:55:21,235 INFO L87 Difference]: Start difference. First operand 626 states and 822 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 9 states have internal predecessors, (72), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:21,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:21,771 INFO L93 Difference]: Finished difference Result 1256 states and 1648 transitions. [2024-11-23 22:55:21,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:55:21,772 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 9 states have internal predecessors, (72), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 129 [2024-11-23 22:55:21,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:21,775 INFO L225 Difference]: With dead ends: 1256 [2024-11-23 22:55:21,775 INFO L226 Difference]: Without dead ends: 633 [2024-11-23 22:55:21,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:55:21,777 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 7 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:21,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 977 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:55:21,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-11-23 22:55:21,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 621. [2024-11-23 22:55:21,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 558 states have (on average 1.2455197132616487) internal successors, (695), 561 states have internal predecessors, (695), 56 states have call successors, (56), 6 states have call predecessors, (56), 6 states have return successors, (56), 53 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-23 22:55:21,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 807 transitions. [2024-11-23 22:55:21,899 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 807 transitions. Word has length 129 [2024-11-23 22:55:21,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:21,899 INFO L471 AbstractCegarLoop]: Abstraction has 621 states and 807 transitions. [2024-11-23 22:55:21,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 9 states have internal predecessors, (72), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:21,900 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 807 transitions. [2024-11-23 22:55:21,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-23 22:55:21,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:21,901 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:21,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-23 22:55:21,902 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:21,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:21,902 INFO L85 PathProgramCache]: Analyzing trace with hash -344567339, now seen corresponding path program 1 times [2024-11-23 22:55:21,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:21,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012002770] [2024-11-23 22:55:21,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:21,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:22,580 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:22,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:22,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012002770] [2024-11-23 22:55:22,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012002770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:22,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:22,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 22:55:22,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034130774] [2024-11-23 22:55:22,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:22,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 22:55:22,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:22,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 22:55:22,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:55:22,583 INFO L87 Difference]: Start difference. First operand 621 states and 807 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:23,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:23,450 INFO L93 Difference]: Finished difference Result 1582 states and 2076 transitions. [2024-11-23 22:55:23,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 22:55:23,451 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 129 [2024-11-23 22:55:23,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:23,456 INFO L225 Difference]: With dead ends: 1582 [2024-11-23 22:55:23,456 INFO L226 Difference]: Without dead ends: 964 [2024-11-23 22:55:23,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2024-11-23 22:55:23,458 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 188 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:23,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 2153 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 22:55:23,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2024-11-23 22:55:23,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 684. [2024-11-23 22:55:23,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 621 states have (on average 1.2351046698872785) internal successors, (767), 624 states have internal predecessors, (767), 56 states have call successors, (56), 6 states have call predecessors, (56), 6 states have return successors, (56), 53 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-23 22:55:23,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 879 transitions. [2024-11-23 22:55:23,578 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 879 transitions. Word has length 129 [2024-11-23 22:55:23,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:23,578 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 879 transitions. [2024-11-23 22:55:23,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:23,579 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 879 transitions. [2024-11-23 22:55:23,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-23 22:55:23,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:23,580 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:23,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-23 22:55:23,581 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:23,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:23,581 INFO L85 PathProgramCache]: Analyzing trace with hash -367030989, now seen corresponding path program 1 times [2024-11-23 22:55:23,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:23,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89966002] [2024-11-23 22:55:23,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:23,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:24,694 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:24,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:24,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89966002] [2024-11-23 22:55:24,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89966002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:24,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:24,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 22:55:24,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042695289] [2024-11-23 22:55:24,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:24,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 22:55:24,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:24,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 22:55:24,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:55:24,697 INFO L87 Difference]: Start difference. First operand 684 states and 879 transitions. Second operand has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 13 states have internal predecessors, (72), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 22:55:25,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:25,716 INFO L93 Difference]: Finished difference Result 1635 states and 2133 transitions. [2024-11-23 22:55:25,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 22:55:25,717 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 13 states have internal predecessors, (72), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) Word has length 129 [2024-11-23 22:55:25,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:25,720 INFO L225 Difference]: With dead ends: 1635 [2024-11-23 22:55:25,720 INFO L226 Difference]: Without dead ends: 954 [2024-11-23 22:55:25,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2024-11-23 22:55:25,722 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 104 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:25,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1983 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 22:55:25,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2024-11-23 22:55:25,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 688. [2024-11-23 22:55:25,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 625 states have (on average 1.2288) internal successors, (768), 628 states have internal predecessors, (768), 56 states have call successors, (56), 6 states have call predecessors, (56), 6 states have return successors, (56), 53 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-23 22:55:25,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 880 transitions. [2024-11-23 22:55:25,841 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 880 transitions. Word has length 129 [2024-11-23 22:55:25,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:25,841 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 880 transitions. [2024-11-23 22:55:25,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 13 states have internal predecessors, (72), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 22:55:25,842 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 880 transitions. [2024-11-23 22:55:25,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-23 22:55:25,843 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:25,843 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:25,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-23 22:55:25,844 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:25,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:25,844 INFO L85 PathProgramCache]: Analyzing trace with hash -971437755, now seen corresponding path program 1 times [2024-11-23 22:55:25,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:25,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993965584] [2024-11-23 22:55:25,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:25,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:26,184 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:26,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:26,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993965584] [2024-11-23 22:55:26,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993965584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:26,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:26,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:55:26,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975275122] [2024-11-23 22:55:26,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:26,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:55:26,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:26,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:55:26,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:55:26,186 INFO L87 Difference]: Start difference. First operand 688 states and 880 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:26,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:26,385 INFO L93 Difference]: Finished difference Result 761 states and 970 transitions. [2024-11-23 22:55:26,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:55:26,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 129 [2024-11-23 22:55:26,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:26,389 INFO L225 Difference]: With dead ends: 761 [2024-11-23 22:55:26,390 INFO L226 Difference]: Without dead ends: 759 [2024-11-23 22:55:26,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:55:26,393 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 95 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:26,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 859 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:55:26,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2024-11-23 22:55:26,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 758. [2024-11-23 22:55:26,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 684 states have (on average 1.226608187134503) internal successors, (839), 688 states have internal predecessors, (839), 62 states have call successors, (62), 11 states have call predecessors, (62), 11 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-23 22:55:26,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 963 transitions. [2024-11-23 22:55:26,550 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 963 transitions. Word has length 129 [2024-11-23 22:55:26,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:26,550 INFO L471 AbstractCegarLoop]: Abstraction has 758 states and 963 transitions. [2024-11-23 22:55:26,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:26,551 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 963 transitions. [2024-11-23 22:55:26,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-23 22:55:26,552 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:26,552 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:26,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-23 22:55:26,552 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:26,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:26,553 INFO L85 PathProgramCache]: Analyzing trace with hash -969590713, now seen corresponding path program 1 times [2024-11-23 22:55:26,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:26,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643135497] [2024-11-23 22:55:26,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:26,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:27,567 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:27,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:27,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643135497] [2024-11-23 22:55:27,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643135497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:27,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:27,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:55:27,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220877215] [2024-11-23 22:55:27,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:27,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:55:27,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:27,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:55:27,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:55:27,569 INFO L87 Difference]: Start difference. First operand 758 states and 963 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:28,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:28,210 INFO L93 Difference]: Finished difference Result 1757 states and 2232 transitions. [2024-11-23 22:55:28,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:55:28,210 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 129 [2024-11-23 22:55:28,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:28,216 INFO L225 Difference]: With dead ends: 1757 [2024-11-23 22:55:28,216 INFO L226 Difference]: Without dead ends: 1037 [2024-11-23 22:55:28,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:55:28,218 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 94 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:28,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1142 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:55:28,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-11-23 22:55:28,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 866. [2024-11-23 22:55:28,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 777 states have (on average 1.2265122265122266) internal successors, (953), 782 states have internal predecessors, (953), 74 states have call successors, (74), 14 states have call predecessors, (74), 14 states have return successors, (74), 69 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-23 22:55:28,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1101 transitions. [2024-11-23 22:55:28,448 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1101 transitions. Word has length 129 [2024-11-23 22:55:28,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:28,449 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1101 transitions. [2024-11-23 22:55:28,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:28,450 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1101 transitions. [2024-11-23 22:55:28,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-23 22:55:28,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:28,451 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:28,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-23 22:55:28,452 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:28,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:28,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1362617723, now seen corresponding path program 1 times [2024-11-23 22:55:28,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:28,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267615794] [2024-11-23 22:55:28,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:28,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:29,311 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:29,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:29,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267615794] [2024-11-23 22:55:29,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267615794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:29,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:29,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:55:29,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556855837] [2024-11-23 22:55:29,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:29,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:55:29,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:29,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:55:29,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:55:29,313 INFO L87 Difference]: Start difference. First operand 866 states and 1101 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:29,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:29,978 INFO L93 Difference]: Finished difference Result 1865 states and 2360 transitions. [2024-11-23 22:55:29,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 22:55:29,979 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 129 [2024-11-23 22:55:29,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:29,985 INFO L225 Difference]: With dead ends: 1865 [2024-11-23 22:55:29,985 INFO L226 Difference]: Without dead ends: 1037 [2024-11-23 22:55:29,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:55:29,987 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 301 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:29,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 1117 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:55:29,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-11-23 22:55:30,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 894. [2024-11-23 22:55:30,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 797 states have (on average 1.2132998745294856) internal successors, (967), 802 states have internal predecessors, (967), 76 states have call successors, (76), 20 states have call predecessors, (76), 20 states have return successors, (76), 71 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-23 22:55:30,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1119 transitions. [2024-11-23 22:55:30,275 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1119 transitions. Word has length 129 [2024-11-23 22:55:30,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:30,276 INFO L471 AbstractCegarLoop]: Abstraction has 894 states and 1119 transitions. [2024-11-23 22:55:30,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:30,276 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1119 transitions. [2024-11-23 22:55:30,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-23 22:55:30,278 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:30,278 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:30,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-23 22:55:30,278 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:30,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:30,279 INFO L85 PathProgramCache]: Analyzing trace with hash 412389639, now seen corresponding path program 1 times [2024-11-23 22:55:30,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:30,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508155600] [2024-11-23 22:55:30,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:30,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:55:30,367 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:55:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:55:30,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 22:55:30,515 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 22:55:30,516 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 22:55:30,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-23 22:55:30,523 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:30,658 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 22:55:30,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:55:30 BoogieIcfgContainer [2024-11-23 22:55:30,665 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 22:55:30,666 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 22:55:30,666 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 22:55:30,666 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 22:55:30,679 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:54:32" (3/4) ... [2024-11-23 22:55:30,682 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 22:55:30,684 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 22:55:30,685 INFO L158 Benchmark]: Toolchain (without parser) took 60145.41ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 117.3MB in the beginning and 478.3MB in the end (delta: -361.0MB). Peak memory consumption was 318.2MB. Max. memory is 16.1GB. [2024-11-23 22:55:30,686 INFO L158 Benchmark]: CDTParser took 1.35ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:55:30,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 424.37ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 102.2MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 22:55:30,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.65ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 97.9MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:55:30,686 INFO L158 Benchmark]: Boogie Preprocessor took 125.11ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 92.9MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:55:30,686 INFO L158 Benchmark]: RCFGBuilder took 969.06ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 57.5MB in the end (delta: 35.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-23 22:55:30,687 INFO L158 Benchmark]: TraceAbstraction took 58509.71ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 56.8MB in the beginning and 181.7MB in the end (delta: -124.9MB). Peak memory consumption was 250.0MB. Max. memory is 16.1GB. [2024-11-23 22:55:30,687 INFO L158 Benchmark]: Witness Printer took 18.94ms. Allocated memory is still 520.1MB. Free memory was 181.7MB in the beginning and 478.3MB in the end (delta: -296.6MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2024-11-23 22:55:30,688 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.35ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 424.37ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 102.2MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.65ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 97.9MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 125.11ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 92.9MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 969.06ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 57.5MB in the end (delta: 35.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 58509.71ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 56.8MB in the beginning and 181.7MB in the end (delta: -124.9MB). Peak memory consumption was 250.0MB. Max. memory is 16.1GB. * Witness Printer took 18.94ms. Allocated memory is still 520.1MB. Free memory was 181.7MB in the beginning and 478.3MB in the end (delta: -296.6MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 61, overapproximation of someBinaryDOUBLEComparisonOperation at line 75, overapproximation of someBinaryDOUBLEComparisonOperation at line 69, overapproximation of someBinaryDOUBLEComparisonOperation at line 89, overapproximation of someBinaryDOUBLEComparisonOperation at line 71, overapproximation of someBinaryDOUBLEComparisonOperation at line 73, overapproximation of someBinaryDOUBLEComparisonOperation at line 69, overapproximation of someBinaryDOUBLEComparisonOperation at line 75, overapproximation of someBinaryDOUBLEComparisonOperation at line 71, overapproximation of someBinaryDOUBLEComparisonOperation at line 73. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 0 }; [L25-L27] double double_Array_0[5] = { 255.375, 255.6, 8.3, 10000000.375, 0.0 }; [L25-L27] double double_Array_0[5] = { 255.375, 255.6, 8.3, 10000000.375, 0.0 }; [L25-L27] double double_Array_0[5] = { 255.375, 255.6, 8.3, 10000000.375, 0.0 }; [L25-L27] double double_Array_0[5] = { 255.375, 255.6, 8.3, 10000000.375, 0.0 }; [L25-L27] double double_Array_0[5] = { 255.375, 255.6, 8.3, 10000000.375, 0.0 }; [L25-L27] double double_Array_0[5] = { 255.375, 255.6, 8.3, 10000000.375, 0.0 }; [L28-L30] signed char signed_char_Array_0[3] = { 5, 1, 25 }; [L28-L30] signed char signed_char_Array_0[3] = { 5, 1, 25 }; [L28-L30] signed char signed_char_Array_0[3] = { 5, 1, 25 }; [L28-L30] signed char signed_char_Array_0[3] = { 5, 1, 25 }; [L31-L33] signed long int signed_long_int_Array_0[1] = { -50 }; [L31-L33] signed long int signed_long_int_Array_0[1] = { -50 }; [L34-L36] unsigned char unsigned_char_Array_0[2] = { 50, 2 }; [L34-L36] unsigned char unsigned_char_Array_0[2] = { 50, 2 }; [L34-L36] unsigned char unsigned_char_Array_0[2] = { 50, 2 }; [L37-L39] unsigned short int unsigned_short_int_Array_0[2] = { 19138, 0 }; [L37-L39] unsigned short int unsigned_short_int_Array_0[2] = { 19138, 0 }; [L37-L39] unsigned short int unsigned_short_int_Array_0[2] = { 19138, 0 }; VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=0, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L93] isInitial = 1 [L94] FCALL initially() [L96] FCALL updateLastVariables() [L97] CALL updateVariables() [L65] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L66] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L66] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L66] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L67] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L67] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L67] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L68] double_Array_0[0] = __VERIFIER_nondet_double() [L69] EXPR double_Array_0[0] [L69] EXPR double_Array_0[0] >= 0.0F && double_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L69] EXPR double_Array_0[0] >= 0.0F && double_Array_0[0] <= -1.0e-20F [L69] EXPR double_Array_0[0] [L69] EXPR double_Array_0[0] >= 0.0F && double_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L69] EXPR (double_Array_0[0] >= 0.0F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 4611686.018427382800e+12F && double_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L69] EXPR (double_Array_0[0] >= 0.0F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 4611686.018427382800e+12F && double_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L69] CALL assume_abort_if_not((double_Array_0[0] >= 0.0F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 4611686.018427382800e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L69] RET assume_abort_if_not((double_Array_0[0] >= 0.0F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 4611686.018427382800e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L70] double_Array_0[1] = __VERIFIER_nondet_double() [L71] EXPR double_Array_0[1] [L71] EXPR double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L71] EXPR double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F [L71] EXPR double_Array_0[1] [L71] EXPR double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L71] EXPR (double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L71] EXPR (double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L71] CALL assume_abort_if_not((double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L71] RET assume_abort_if_not((double_Array_0[1] >= 0.0F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L72] double_Array_0[3] = __VERIFIER_nondet_double() [L73] EXPR double_Array_0[3] [L73] EXPR double_Array_0[3] >= 0.0F && double_Array_0[3] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L73] EXPR double_Array_0[3] >= 0.0F && double_Array_0[3] <= -1.0e-20F [L73] EXPR double_Array_0[3] [L73] EXPR double_Array_0[3] >= 0.0F && double_Array_0[3] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L73] EXPR (double_Array_0[3] >= 0.0F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L73] EXPR (double_Array_0[3] >= 0.0F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L73] CALL assume_abort_if_not((double_Array_0[3] >= 0.0F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L73] RET assume_abort_if_not((double_Array_0[3] >= 0.0F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L74] double_Array_0[4] = __VERIFIER_nondet_double() [L75] EXPR double_Array_0[4] [L75] EXPR double_Array_0[4] >= 4611686.018427382800e+12F && double_Array_0[4] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L75] EXPR double_Array_0[4] >= 4611686.018427382800e+12F && double_Array_0[4] <= -1.0e-20F [L75] EXPR double_Array_0[4] [L75] EXPR double_Array_0[4] >= 4611686.018427382800e+12F && double_Array_0[4] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L75] EXPR (double_Array_0[4] >= 4611686.018427382800e+12F && double_Array_0[4] <= -1.0e-20F) || (double_Array_0[4] <= 9223372.036854765600e+12F && double_Array_0[4] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L75] EXPR (double_Array_0[4] >= 4611686.018427382800e+12F && double_Array_0[4] <= -1.0e-20F) || (double_Array_0[4] <= 9223372.036854765600e+12F && double_Array_0[4] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L75] CALL assume_abort_if_not((double_Array_0[4] >= 4611686.018427382800e+12F && double_Array_0[4] <= -1.0e-20F) || (double_Array_0[4] <= 9223372.036854765600e+12F && double_Array_0[4] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L75] RET assume_abort_if_not((double_Array_0[4] >= 4611686.018427382800e+12F && double_Array_0[4] <= -1.0e-20F) || (double_Array_0[4] <= 9223372.036854765600e+12F && double_Array_0[4] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] signed_char_Array_0[0] = __VERIFIER_nondet_char() [L77] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L77] CALL assume_abort_if_not(signed_char_Array_0[0] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L77] RET assume_abort_if_not(signed_char_Array_0[0] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] CALL assume_abort_if_not(signed_char_Array_0[0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] RET assume_abort_if_not(signed_char_Array_0[0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L79] unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L80] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] CALL assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] RET assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L81] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L81] CALL assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L81] RET assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] unsigned_short_int_Array_0[0] = __VERIFIER_nondet_ushort() [L83] EXPR unsigned_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] CALL assume_abort_if_not(unsigned_short_int_Array_0[0] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] RET assume_abort_if_not(unsigned_short_int_Array_0[0] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L84] EXPR unsigned_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L84] CALL assume_abort_if_not(unsigned_short_int_Array_0[0] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L84] RET assume_abort_if_not(unsigned_short_int_Array_0[0] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L97] RET updateVariables() [L98] CALL step() [L43] EXPR unsigned_char_Array_0[1] [L43] unsigned_char_Array_0[0] = unsigned_char_Array_0[1] [L44] EXPR signed_char_Array_0[0] [L44] signed_char_Array_0[1] = signed_char_Array_0[0] [L45] BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L45] COND FALSE !(BOOL_unsigned_char_Array_0[0]) [L48] EXPR BOOL_unsigned_char_Array_0[0] [L48] BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L48] BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L48] COND FALSE !(BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1]))) [L51] EXPR unsigned_short_int_Array_0[0] [L51] unsigned short int stepLocal_0 = unsigned_short_int_Array_0[0]; [L52] EXPR unsigned_char_Array_0[0] [L52] EXPR unsigned_char_Array_0[0] [L52] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L52] EXPR unsigned_char_Array_0[0] << unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, stepLocal_0=-49153, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L52] EXPR ((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0])) [L52] EXPR unsigned_char_Array_0[0] [L52] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L52] EXPR unsigned_char_Array_0[0] << unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, stepLocal_0=-49153, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L52] EXPR ((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, stepLocal_0=-49153, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L52] COND FALSE !(stepLocal_0 <= ((((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))))) [L55] EXPR unsigned_char_Array_0[0] [L55] EXPR unsigned_short_int_Array_0[1] [L55] EXPR unsigned_short_int_Array_0[0] [L55] signed_long_int_Array_0[0] = (unsigned_char_Array_0[0] + (unsigned_short_int_Array_0[1] + unsigned_short_int_Array_0[0])) [L57] EXPR unsigned_char_Array_0[0] [L57] unsigned char stepLocal_1 = unsigned_char_Array_0[0]; [L58] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L58] COND FALSE !(unsigned_char_Array_0[0] < stepLocal_1) [L61] EXPR double_Array_0[4] [L61] EXPR double_Array_0[0] [L61] EXPR double_Array_0[1] [L61] double_Array_0[2] = ((double_Array_0[4] - double_Array_0[0]) - double_Array_0[1]) [L98] RET step() [L99] CALL, EXPR property() [L89] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((17222 - unsigned_char_Array_0[0]) + (((((29916) < (unsigned_short_int_Array_0[0])) ? (29916) : (unsigned_short_int_Array_0[0]))) - unsigned_char_Array_0[0])))) : 1 [L89] EXPR BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((17222 - unsigned_char_Array_0[0]) + (((((29916) < (unsigned_short_int_Array_0[0])) ? (29916) : (unsigned_short_int_Array_0[0]))) - unsigned_char_Array_0[0])))) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR (BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((17222 - unsigned_char_Array_0[0]) + (((((29916) < (unsigned_short_int_Array_0[0])) ? (29916) : (unsigned_short_int_Array_0[0]))) - unsigned_char_Array_0[0])))) : 1) && ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1]))) ? (signed_char_Array_0[2] == ((signed char) 8)) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR (BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((17222 - unsigned_char_Array_0[0]) + (((((29916) < (unsigned_short_int_Array_0[0])) ? (29916) : (unsigned_short_int_Array_0[0]))) - unsigned_char_Array_0[0])))) : 1) && ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1]))) ? (signed_char_Array_0[2] == ((signed char) 8)) : 1) [L89] EXPR BOOL_unsigned_char_Array_0[0] [L89] EXPR BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR (BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1]))) ? (signed_char_Array_0[2] == ((signed char) 8)) : 1 [L89] EXPR (BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1]))) ? (signed_char_Array_0[2] == ((signed char) 8)) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR (BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((17222 - unsigned_char_Array_0[0]) + (((((29916) < (unsigned_short_int_Array_0[0])) ? (29916) : (unsigned_short_int_Array_0[0]))) - unsigned_char_Array_0[0])))) : 1) && ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1]))) ? (signed_char_Array_0[2] == ((signed char) 8)) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR ((BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((17222 - unsigned_char_Array_0[0]) + (((((29916) < (unsigned_short_int_Array_0[0])) ? (29916) : (unsigned_short_int_Array_0[0]))) - unsigned_char_Array_0[0])))) : 1) && ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1]))) ? (signed_char_Array_0[2] == ((signed char) 8)) : 1)) && ((unsigned_short_int_Array_0[0] <= ((((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))))) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) < (unsigned_short_int_Array_0[0])) ? ((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0]))))) : (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[0] + (unsigned_short_int_Array_0[1] + unsigned_short_int_Array_0[0]))))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR ((BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((17222 - unsigned_char_Array_0[0]) + (((((29916) < (unsigned_short_int_Array_0[0])) ? (29916) : (unsigned_short_int_Array_0[0]))) - unsigned_char_Array_0[0])))) : 1) && ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1]))) ? (signed_char_Array_0[2] == ((signed char) 8)) : 1)) && ((unsigned_short_int_Array_0[0] <= ((((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))))) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) < (unsigned_short_int_Array_0[0])) ? ((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0]))))) : (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[0] + (unsigned_short_int_Array_0[1] + unsigned_short_int_Array_0[0]))))) [L89] EXPR unsigned_short_int_Array_0[0] [L89] EXPR unsigned_char_Array_0[0] [L89] EXPR unsigned_char_Array_0[0] [L89] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR unsigned_char_Array_0[0] << unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR ((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0])) [L89] EXPR unsigned_char_Array_0[0] [L89] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR unsigned_char_Array_0[0] << unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR ((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR (unsigned_short_int_Array_0[0] <= ((((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))))) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) < (unsigned_short_int_Array_0[0])) ? ((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0]))))) : (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[0] + (unsigned_short_int_Array_0[1] + unsigned_short_int_Array_0[0])))) [L89] EXPR signed_long_int_Array_0[0] [L89] EXPR unsigned_char_Array_0[0] [L89] EXPR unsigned_short_int_Array_0[1] [L89] EXPR unsigned_short_int_Array_0[0] [L89] EXPR (unsigned_short_int_Array_0[0] <= ((((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))))) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) < (unsigned_short_int_Array_0[0])) ? ((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0]))))) : (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[0] + (unsigned_short_int_Array_0[1] + unsigned_short_int_Array_0[0])))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR ((BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((17222 - unsigned_char_Array_0[0]) + (((((29916) < (unsigned_short_int_Array_0[0])) ? (29916) : (unsigned_short_int_Array_0[0]))) - unsigned_char_Array_0[0])))) : 1) && ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1]))) ? (signed_char_Array_0[2] == ((signed char) 8)) : 1)) && ((unsigned_short_int_Array_0[0] <= ((((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))))) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) < (unsigned_short_int_Array_0[0])) ? ((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0]))))) : (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[0] + (unsigned_short_int_Array_0[1] + unsigned_short_int_Array_0[0]))))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR (((BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((17222 - unsigned_char_Array_0[0]) + (((((29916) < (unsigned_short_int_Array_0[0])) ? (29916) : (unsigned_short_int_Array_0[0]))) - unsigned_char_Array_0[0])))) : 1) && ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1]))) ? (signed_char_Array_0[2] == ((signed char) 8)) : 1)) && ((unsigned_short_int_Array_0[0] <= ((((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))))) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) < (unsigned_short_int_Array_0[0])) ? ((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0]))))) : (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[0] + (unsigned_short_int_Array_0[1] + unsigned_short_int_Array_0[0])))))) && ((unsigned_char_Array_0[0] < unsigned_char_Array_0[0]) ? (double_Array_0[2] == ((double) (double_Array_0[1] - double_Array_0[3]))) : (double_Array_0[2] == ((double) ((double_Array_0[4] - double_Array_0[0]) - double_Array_0[1])))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR (((BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((17222 - unsigned_char_Array_0[0]) + (((((29916) < (unsigned_short_int_Array_0[0])) ? (29916) : (unsigned_short_int_Array_0[0]))) - unsigned_char_Array_0[0])))) : 1) && ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1]))) ? (signed_char_Array_0[2] == ((signed char) 8)) : 1)) && ((unsigned_short_int_Array_0[0] <= ((((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))))) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) < (unsigned_short_int_Array_0[0])) ? ((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0]))))) : (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[0] + (unsigned_short_int_Array_0[1] + unsigned_short_int_Array_0[0])))))) && ((unsigned_char_Array_0[0] < unsigned_char_Array_0[0]) ? (double_Array_0[2] == ((double) (double_Array_0[1] - double_Array_0[3]))) : (double_Array_0[2] == ((double) ((double_Array_0[4] - double_Array_0[0]) - double_Array_0[1])))) [L89] EXPR unsigned_char_Array_0[0] [L89] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR (unsigned_char_Array_0[0] < unsigned_char_Array_0[0]) ? (double_Array_0[2] == ((double) (double_Array_0[1] - double_Array_0[3]))) : (double_Array_0[2] == ((double) ((double_Array_0[4] - double_Array_0[0]) - double_Array_0[1]))) [L89] EXPR double_Array_0[2] [L89] EXPR double_Array_0[4] [L89] EXPR double_Array_0[0] [L89] EXPR double_Array_0[1] [L89] EXPR (unsigned_char_Array_0[0] < unsigned_char_Array_0[0]) ? (double_Array_0[2] == ((double) (double_Array_0[1] - double_Array_0[3]))) : (double_Array_0[2] == ((double) ((double_Array_0[4] - double_Array_0[0]) - double_Array_0[1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR (((BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((17222 - unsigned_char_Array_0[0]) + (((((29916) < (unsigned_short_int_Array_0[0])) ? (29916) : (unsigned_short_int_Array_0[0]))) - unsigned_char_Array_0[0])))) : 1) && ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1]))) ? (signed_char_Array_0[2] == ((signed char) 8)) : 1)) && ((unsigned_short_int_Array_0[0] <= ((((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))))) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) < (unsigned_short_int_Array_0[0])) ? ((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0]))))) : (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[0] + (unsigned_short_int_Array_0[1] + unsigned_short_int_Array_0[0])))))) && ((unsigned_char_Array_0[0] < unsigned_char_Array_0[0]) ? (double_Array_0[2] == ((double) (double_Array_0[1] - double_Array_0[3]))) : (double_Array_0[2] == ((double) ((double_Array_0[4] - double_Array_0[0]) - double_Array_0[1])))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR ((((BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((17222 - unsigned_char_Array_0[0]) + (((((29916) < (unsigned_short_int_Array_0[0])) ? (29916) : (unsigned_short_int_Array_0[0]))) - unsigned_char_Array_0[0])))) : 1) && ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1]))) ? (signed_char_Array_0[2] == ((signed char) 8)) : 1)) && ((unsigned_short_int_Array_0[0] <= ((((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))))) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) < (unsigned_short_int_Array_0[0])) ? ((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0]))))) : (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[0] + (unsigned_short_int_Array_0[1] + unsigned_short_int_Array_0[0])))))) && ((unsigned_char_Array_0[0] < unsigned_char_Array_0[0]) ? (double_Array_0[2] == ((double) (double_Array_0[1] - double_Array_0[3]))) : (double_Array_0[2] == ((double) ((double_Array_0[4] - double_Array_0[0]) - double_Array_0[1]))))) && (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR ((((BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((17222 - unsigned_char_Array_0[0]) + (((((29916) < (unsigned_short_int_Array_0[0])) ? (29916) : (unsigned_short_int_Array_0[0]))) - unsigned_char_Array_0[0])))) : 1) && ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1]))) ? (signed_char_Array_0[2] == ((signed char) 8)) : 1)) && ((unsigned_short_int_Array_0[0] <= ((((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))))) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) < (unsigned_short_int_Array_0[0])) ? ((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0]))))) : (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[0] + (unsigned_short_int_Array_0[1] + unsigned_short_int_Array_0[0])))))) && ((unsigned_char_Array_0[0] < unsigned_char_Array_0[0]) ? (double_Array_0[2] == ((double) (double_Array_0[1] - double_Array_0[3]))) : (double_Array_0[2] == ((double) ((double_Array_0[4] - double_Array_0[0]) - double_Array_0[1]))))) && (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR (((((BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((17222 - unsigned_char_Array_0[0]) + (((((29916) < (unsigned_short_int_Array_0[0])) ? (29916) : (unsigned_short_int_Array_0[0]))) - unsigned_char_Array_0[0])))) : 1) && ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1]))) ? (signed_char_Array_0[2] == ((signed char) 8)) : 1)) && ((unsigned_short_int_Array_0[0] <= ((((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))))) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) < (unsigned_short_int_Array_0[0])) ? ((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0]))))) : (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[0] + (unsigned_short_int_Array_0[1] + unsigned_short_int_Array_0[0])))))) && ((unsigned_char_Array_0[0] < unsigned_char_Array_0[0]) ? (double_Array_0[2] == ((double) (double_Array_0[1] - double_Array_0[3]))) : (double_Array_0[2] == ((double) ((double_Array_0[4] - double_Array_0[0]) - double_Array_0[1]))))) && (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1]))) && (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR (((((BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((17222 - unsigned_char_Array_0[0]) + (((((29916) < (unsigned_short_int_Array_0[0])) ? (29916) : (unsigned_short_int_Array_0[0]))) - unsigned_char_Array_0[0])))) : 1) && ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1]))) ? (signed_char_Array_0[2] == ((signed char) 8)) : 1)) && ((unsigned_short_int_Array_0[0] <= ((((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))))) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) < (unsigned_short_int_Array_0[0])) ? ((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0]))))) : (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[0] + (unsigned_short_int_Array_0[1] + unsigned_short_int_Array_0[0])))))) && ((unsigned_char_Array_0[0] < unsigned_char_Array_0[0]) ? (double_Array_0[2] == ((double) (double_Array_0[1] - double_Array_0[3]))) : (double_Array_0[2] == ((double) ((double_Array_0[4] - double_Array_0[0]) - double_Array_0[1]))))) && (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1]))) && (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89-L90] return (((((BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) ((17222 - unsigned_char_Array_0[0]) + (((((29916) < (unsigned_short_int_Array_0[0])) ? (29916) : (unsigned_short_int_Array_0[0]))) - unsigned_char_Array_0[0])))) : 1) && ((BOOL_unsigned_char_Array_0[0] && (unsigned_short_int_Array_0[0] >= (unsigned_char_Array_0[0] + unsigned_short_int_Array_0[1]))) ? (signed_char_Array_0[2] == ((signed char) 8)) : 1)) && ((unsigned_short_int_Array_0[0] <= ((((unsigned_char_Array_0[0]) > ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))) ? (unsigned_char_Array_0[0]) : ((unsigned_char_Array_0[0] << unsigned_char_Array_0[0]))))) ? (signed_long_int_Array_0[0] == ((signed long int) (((((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) < (unsigned_short_int_Array_0[0])) ? ((unsigned_char_Array_0[0] - unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[0]))))) : (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[0] + (unsigned_short_int_Array_0[1] + unsigned_short_int_Array_0[0])))))) && ((unsigned_char_Array_0[0] < unsigned_char_Array_0[0]) ? (double_Array_0[2] == ((double) (double_Array_0[1] - double_Array_0[3]))) : (double_Array_0[2] == ((double) ((double_Array_0[4] - double_Array_0[0]) - double_Array_0[1]))))) && (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1]))) && (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 111 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.3s, OverallIterations: 35, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 21.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3872 SdHoareTripleChecker+Valid, 14.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3845 mSDsluCounter, 38197 SdHoareTripleChecker+Invalid, 12.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31286 mSDsCounter, 228 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8428 IncrementalHoareTripleChecker+Invalid, 8656 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 228 mSolverCounterUnsat, 6911 mSDtfsCounter, 8428 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1002 GetRequests, 717 SyntacticMatches, 4 SemanticMatches, 281 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=894occurred in iteration=34, InterpolantAutomatonStates: 283, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 34 MinimizatonAttempts, 3646 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 28.2s InterpolantComputationTime, 4895 NumberOfCodeBlocks, 4895 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 4727 ConstructedInterpolants, 0 QuantifiedInterpolants, 16797 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2166 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 39 InterpolantComputations, 34 PerfectInterpolantSequences, 10142/10296 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-23 22:55:30,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f2cb36cc0f0fd05117e5167c95d28ca6a711637d120a8a77c2820981a0c818fc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:55:34,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:55:34,205 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 22:55:34,217 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:55:34,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:55:34,267 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:55:34,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:55:34,268 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:55:34,269 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:55:34,270 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:55:34,271 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:55:34,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:55:34,272 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:55:34,272 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:55:34,272 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:55:34,273 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:55:34,273 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:55:34,274 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:55:34,274 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:55:34,274 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:55:34,275 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:55:34,275 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:55:34,275 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:55:34,275 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 22:55:34,275 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 22:55:34,276 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 22:55:34,276 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:55:34,276 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:55:34,276 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:55:34,276 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:55:34,276 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:55:34,276 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:55:34,277 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:55:34,277 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:55:34,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:55:34,277 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:55:34,277 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:55:34,277 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:55:34,277 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:55:34,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:55:34,277 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:55:34,277 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:55:34,278 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:55:34,278 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:55:34,278 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 22:55:34,278 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 22:55:34,278 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:55:34,278 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:55:34,278 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:55:34,278 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:55:34,278 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_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2cb36cc0f0fd05117e5167c95d28ca6a711637d120a8a77c2820981a0c818fc [2024-11-23 22:55:34,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:55:34,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:55:34,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:55:34,714 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:55:34,714 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:55:34,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-70.i [2024-11-23 22:55:37,989 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/data/827fa09d5/167f8ca8475c44ac9ef51619abd11a6b/FLAGf4968c013 [2024-11-23 22:55:38,418 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:55:38,419 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-70.i [2024-11-23 22:55:38,433 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/data/827fa09d5/167f8ca8475c44ac9ef51619abd11a6b/FLAGf4968c013 [2024-11-23 22:55:38,464 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/data/827fa09d5/167f8ca8475c44ac9ef51619abd11a6b [2024-11-23 22:55:38,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:55:38,469 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:55:38,472 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:55:38,472 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:55:38,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:55:38,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:55:38" (1/1) ... [2024-11-23 22:55:38,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a162ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:38, skipping insertion in model container [2024-11-23 22:55:38,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:55:38" (1/1) ... [2024-11-23 22:55:38,508 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:55:38,720 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_0bf5c792-4960-4db4-89f3-0be3c403bb28/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-70.i[916,929] [2024-11-23 22:55:38,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:55:38,875 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:55:38,890 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_0bf5c792-4960-4db4-89f3-0be3c403bb28/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-70.i[916,929] [2024-11-23 22:55:38,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:55:39,040 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:55:39,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:39 WrapperNode [2024-11-23 22:55:39,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:55:39,042 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:55:39,042 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:55:39,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:55:39,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:39" (1/1) ... [2024-11-23 22:55:39,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:39" (1/1) ... [2024-11-23 22:55:39,143 INFO L138 Inliner]: procedures = 36, calls = 161, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 494 [2024-11-23 22:55:39,143 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:55:39,144 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:55:39,144 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:55:39,144 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:55:39,159 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:39" (1/1) ... [2024-11-23 22:55:39,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:39" (1/1) ... [2024-11-23 22:55:39,173 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:39" (1/1) ... [2024-11-23 22:55:39,219 INFO L175 MemorySlicer]: Split 132 memory accesses to 7 slices as follows [2, 8, 39, 12, 5, 41, 25]. 31 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 1, 5, 3, 1, 2, 2]. The 16 writes are split as follows [0, 1, 6, 3, 2, 2, 2]. [2024-11-23 22:55:39,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:39" (1/1) ... [2024-11-23 22:55:39,223 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:39" (1/1) ... [2024-11-23 22:55:39,279 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:39" (1/1) ... [2024-11-23 22:55:39,284 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:39" (1/1) ... [2024-11-23 22:55:39,293 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:39" (1/1) ... [2024-11-23 22:55:39,300 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:39" (1/1) ... [2024-11-23 22:55:39,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:39" (1/1) ... [2024-11-23 22:55:39,323 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:55:39,324 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:55:39,327 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:55:39,327 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:55:39,328 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:39" (1/1) ... [2024-11-23 22:55:39,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:55:39,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:55:39,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:55:39,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:55:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:55:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-23 22:55:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-23 22:55:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-23 22:55:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-23 22:55:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-23 22:55:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-11-23 22:55:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2024-11-23 22:55:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-23 22:55:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-23 22:55:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-23 22:55:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-23 22:55:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-23 22:55:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-11-23 22:55:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2024-11-23 22:55:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-23 22:55:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-23 22:55:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-23 22:55:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-23 22:55:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-23 22:55:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-23 22:55:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-11-23 22:55:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-23 22:55:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-23 22:55:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-11-23 22:55:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-11-23 22:55:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-11-23 22:55:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2024-11-23 22:55:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#6 [2024-11-23 22:55:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 22:55:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-23 22:55:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-23 22:55:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-23 22:55:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-23 22:55:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-23 22:55:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-23 22:55:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-23 22:55:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-23 22:55:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-23 22:55:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-23 22:55:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-23 22:55:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-23 22:55:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-23 22:55:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-11-23 22:55:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-11-23 22:55:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-11-23 22:55:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-11-23 22:55:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-11-23 22:55:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2024-11-23 22:55:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2024-11-23 22:55:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-23 22:55:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-23 22:55:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-23 22:55:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-23 22:55:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-23 22:55:39,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-23 22:55:39,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-23 22:55:39,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-23 22:55:39,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-23 22:55:39,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-23 22:55:39,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-23 22:55:39,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-23 22:55:39,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-11-23 22:55:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2024-11-23 22:55:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:55:39,425 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:55:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:55:39,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:55:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-23 22:55:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-23 22:55:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-23 22:55:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-23 22:55:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-23 22:55:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-23 22:55:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-11-23 22:55:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-23 22:55:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-23 22:55:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-23 22:55:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-23 22:55:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-11-23 22:55:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-11-23 22:55:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2024-11-23 22:55:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-23 22:55:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-23 22:55:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-23 22:55:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-23 22:55:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-23 22:55:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-23 22:55:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-23 22:55:39,688 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:55:39,691 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:55:43,611 INFO L? ?]: Removed 135 outVars from TransFormulas that were not future-live. [2024-11-23 22:55:43,611 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:55:43,632 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:55:43,633 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:55:43,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:55:43 BoogieIcfgContainer [2024-11-23 22:55:43,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:55:43,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:55:43,638 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:55:43,646 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:55:43,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:55:38" (1/3) ... [2024-11-23 22:55:43,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c081eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:55:43, skipping insertion in model container [2024-11-23 22:55:43,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:39" (2/3) ... [2024-11-23 22:55:43,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c081eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:55:43, skipping insertion in model container [2024-11-23 22:55:43,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:55:43" (3/3) ... [2024-11-23 22:55:43,650 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-70.i [2024-11-23 22:55:43,668 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:55:43,670 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-70.i that has 2 procedures, 101 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:55:43,741 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:55:43,760 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;@14cfdc61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:55:43,760 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:55:43,767 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 86 states have (on average 1.441860465116279) internal successors, (124), 87 states have internal predecessors, (124), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:55:43,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 22:55:43,779 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:43,780 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:43,781 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:43,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:43,786 INFO L85 PathProgramCache]: Analyzing trace with hash 559046481, now seen corresponding path program 1 times [2024-11-23 22:55:43,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:43,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924869526] [2024-11-23 22:55:43,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:43,798 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:43,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:43,801 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:43,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-23 22:55:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:44,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 22:55:44,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:44,495 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-23 22:55:44,495 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:55:44,496 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:44,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924869526] [2024-11-23 22:55:44,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924869526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:44,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:44,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:55:44,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497763815] [2024-11-23 22:55:44,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:44,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:55:44,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:44,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:55:44,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:55:44,542 INFO L87 Difference]: Start difference. First operand has 101 states, 86 states have (on average 1.441860465116279) internal successors, (124), 87 states have internal predecessors, (124), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:44,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:44,592 INFO L93 Difference]: Finished difference Result 195 states and 302 transitions. [2024-11-23 22:55:44,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:55:44,596 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-11-23 22:55:44,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:44,607 INFO L225 Difference]: With dead ends: 195 [2024-11-23 22:55:44,610 INFO L226 Difference]: Without dead ends: 97 [2024-11-23 22:55:44,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:55:44,621 INFO L435 NwaCegarLoop]: 141 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, 141 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:44,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:55:44,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-23 22:55:44,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-23 22:55:44,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 83 states have (on average 1.4096385542168675) internal successors, (117), 83 states have internal predecessors, (117), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:55:44,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 141 transitions. [2024-11-23 22:55:44,678 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 141 transitions. Word has length 115 [2024-11-23 22:55:44,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:44,678 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 141 transitions. [2024-11-23 22:55:44,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:44,679 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 141 transitions. [2024-11-23 22:55:44,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 22:55:44,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:44,683 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:44,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-23 22:55:44,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:44,884 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:44,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:44,885 INFO L85 PathProgramCache]: Analyzing trace with hash 2147053761, now seen corresponding path program 1 times [2024-11-23 22:55:44,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:44,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598382154] [2024-11-23 22:55:44,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:44,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:44,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:44,888 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:44,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-23 22:55:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:45,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:55:45,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:45,589 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-23 22:55:45,589 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:55:45,589 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:45,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598382154] [2024-11-23 22:55:45,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598382154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:45,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:45,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:55:45,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462720903] [2024-11-23 22:55:45,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:45,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:55:45,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:45,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:55:45,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:55:45,600 INFO L87 Difference]: Start difference. First operand 97 states and 141 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:45,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:45,728 INFO L93 Difference]: Finished difference Result 193 states and 282 transitions. [2024-11-23 22:55:45,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:55:45,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-11-23 22:55:45,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:45,732 INFO L225 Difference]: With dead ends: 193 [2024-11-23 22:55:45,734 INFO L226 Difference]: Without dead ends: 99 [2024-11-23 22:55:45,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:55:45,737 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:45,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 406 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:55:45,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-23 22:55:45,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-23 22:55:45,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 85 states have (on average 1.4) internal successors, (119), 85 states have internal predecessors, (119), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:55:45,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 143 transitions. [2024-11-23 22:55:45,766 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 143 transitions. Word has length 115 [2024-11-23 22:55:45,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:45,768 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 143 transitions. [2024-11-23 22:55:45,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:45,768 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 143 transitions. [2024-11-23 22:55:45,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 22:55:45,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:45,775 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:45,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-23 22:55:45,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:45,978 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:45,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:45,979 INFO L85 PathProgramCache]: Analyzing trace with hash -241510269, now seen corresponding path program 1 times [2024-11-23 22:55:45,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:45,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250833201] [2024-11-23 22:55:45,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:45,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:45,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:45,985 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:45,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-23 22:55:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:46,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 22:55:46,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:47,268 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 53 proven. 30 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-23 22:55:47,271 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:55:47,534 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:47,536 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:47,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250833201] [2024-11-23 22:55:47,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250833201] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 22:55:47,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:55:47,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-23 22:55:47,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584453919] [2024-11-23 22:55:47,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:47,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:55:47,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:47,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:55:47,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:55:47,540 INFO L87 Difference]: Start difference. First operand 99 states and 143 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:47,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:47,731 INFO L93 Difference]: Finished difference Result 238 states and 346 transitions. [2024-11-23 22:55:47,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:55:47,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-23 22:55:47,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:47,734 INFO L225 Difference]: With dead ends: 238 [2024-11-23 22:55:47,737 INFO L226 Difference]: Without dead ends: 142 [2024-11-23 22:55:47,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:55:47,739 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 61 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:47,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 523 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:55:47,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-23 22:55:47,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 102. [2024-11-23 22:55:47,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 88 states have (on average 1.3863636363636365) internal successors, (122), 88 states have internal predecessors, (122), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:55:47,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 146 transitions. [2024-11-23 22:55:47,759 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 146 transitions. Word has length 115 [2024-11-23 22:55:47,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:47,760 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 146 transitions. [2024-11-23 22:55:47,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:47,761 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 146 transitions. [2024-11-23 22:55:47,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 22:55:47,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:47,766 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:47,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-23 22:55:47,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:47,966 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:47,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:47,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1828093885, now seen corresponding path program 1 times [2024-11-23 22:55:47,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:47,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900590298] [2024-11-23 22:55:47,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:47,968 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:47,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:47,973 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:47,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-23 22:55:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:48,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:55:48,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:48,465 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:48,465 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:55:48,466 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:48,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900590298] [2024-11-23 22:55:48,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900590298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:48,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:48,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:55:48,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703348598] [2024-11-23 22:55:48,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:48,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:55:48,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:48,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:55:48,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:55:48,470 INFO L87 Difference]: Start difference. First operand 102 states and 146 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:48,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:48,539 INFO L93 Difference]: Finished difference Result 203 states and 292 transitions. [2024-11-23 22:55:48,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:55:48,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-23 22:55:48,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:48,541 INFO L225 Difference]: With dead ends: 203 [2024-11-23 22:55:48,542 INFO L226 Difference]: Without dead ends: 104 [2024-11-23 22:55:48,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:55:48,543 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:48,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 406 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:55:48,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-23 22:55:48,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-23 22:55:48,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 90 states have internal predecessors, (124), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:55:48,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 148 transitions. [2024-11-23 22:55:48,553 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 148 transitions. Word has length 115 [2024-11-23 22:55:48,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:48,553 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 148 transitions. [2024-11-23 22:55:48,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:48,554 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 148 transitions. [2024-11-23 22:55:48,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-23 22:55:48,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:48,556 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:48,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-23 22:55:48,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:48,756 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:48,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:48,757 INFO L85 PathProgramCache]: Analyzing trace with hash 46994014, now seen corresponding path program 1 times [2024-11-23 22:55:48,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:48,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631479024] [2024-11-23 22:55:48,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:48,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:48,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:48,761 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:48,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-23 22:55:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:49,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 22:55:49,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:49,974 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 53 proven. 30 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-23 22:55:49,974 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:55:50,270 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:50,270 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:50,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631479024] [2024-11-23 22:55:50,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [631479024] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 22:55:50,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:55:50,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-23 22:55:50,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535911714] [2024-11-23 22:55:50,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:50,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:55:50,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:50,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:55:50,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:55:50,274 INFO L87 Difference]: Start difference. First operand 104 states and 148 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:50,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:50,433 INFO L93 Difference]: Finished difference Result 243 states and 346 transitions. [2024-11-23 22:55:50,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:55:50,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 117 [2024-11-23 22:55:50,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:50,435 INFO L225 Difference]: With dead ends: 243 [2024-11-23 22:55:50,436 INFO L226 Difference]: Without dead ends: 142 [2024-11-23 22:55:50,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:55:50,437 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 94 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:50,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 395 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:55:50,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-23 22:55:50,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 114. [2024-11-23 22:55:50,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 100 states have (on average 1.38) internal successors, (138), 100 states have internal predecessors, (138), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:55:50,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2024-11-23 22:55:50,460 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 162 transitions. Word has length 117 [2024-11-23 22:55:50,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:50,461 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 162 transitions. [2024-11-23 22:55:50,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:50,461 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 162 transitions. [2024-11-23 22:55:50,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-23 22:55:50,463 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:50,463 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:50,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-23 22:55:50,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:50,664 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:50,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:50,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1870057849, now seen corresponding path program 1 times [2024-11-23 22:55:50,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:50,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440360432] [2024-11-23 22:55:50,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:50,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:50,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:50,667 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:50,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-23 22:55:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:51,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 22:55:51,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:51,770 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 53 proven. 30 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-23 22:55:51,771 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:55:52,039 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:52,039 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:52,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440360432] [2024-11-23 22:55:52,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440360432] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 22:55:52,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:55:52,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-23 22:55:52,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808249561] [2024-11-23 22:55:52,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:52,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:55:52,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:52,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:55:52,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:55:52,042 INFO L87 Difference]: Start difference. First operand 114 states and 162 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:52,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:52,206 INFO L93 Difference]: Finished difference Result 254 states and 361 transitions. [2024-11-23 22:55:52,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:55:52,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-23 22:55:52,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:52,209 INFO L225 Difference]: With dead ends: 254 [2024-11-23 22:55:52,209 INFO L226 Difference]: Without dead ends: 143 [2024-11-23 22:55:52,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:55:52,211 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 43 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:52,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 522 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:55:52,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-23 22:55:52,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 118. [2024-11-23 22:55:52,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 104 states have (on average 1.3653846153846154) internal successors, (142), 104 states have internal predecessors, (142), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:55:52,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 166 transitions. [2024-11-23 22:55:52,229 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 166 transitions. Word has length 118 [2024-11-23 22:55:52,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:52,230 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 166 transitions. [2024-11-23 22:55:52,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:52,230 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 166 transitions. [2024-11-23 22:55:52,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-23 22:55:52,231 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:52,232 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:52,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-23 22:55:52,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:52,432 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:52,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:52,433 INFO L85 PathProgramCache]: Analyzing trace with hash -420923079, now seen corresponding path program 1 times [2024-11-23 22:55:52,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:52,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016073632] [2024-11-23 22:55:52,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:52,433 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:52,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:52,435 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:52,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-23 22:55:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:52,815 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 22:55:52,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:52,862 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:52,862 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:55:52,863 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:52,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016073632] [2024-11-23 22:55:52,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016073632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:52,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:52,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:55:52,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187824623] [2024-11-23 22:55:52,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:52,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:55:52,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:52,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:55:52,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:55:52,865 INFO L87 Difference]: Start difference. First operand 118 states and 166 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:52,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:52,946 INFO L93 Difference]: Finished difference Result 236 states and 333 transitions. [2024-11-23 22:55:52,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:55:52,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-23 22:55:52,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:52,949 INFO L225 Difference]: With dead ends: 236 [2024-11-23 22:55:52,950 INFO L226 Difference]: Without dead ends: 121 [2024-11-23 22:55:52,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:55:52,951 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:52,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 535 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:55:52,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-23 22:55:52,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-23 22:55:52,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 107 states have (on average 1.355140186915888) internal successors, (145), 107 states have internal predecessors, (145), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:55:52,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 169 transitions. [2024-11-23 22:55:52,960 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 169 transitions. Word has length 118 [2024-11-23 22:55:52,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:52,961 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 169 transitions. [2024-11-23 22:55:52,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:52,961 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 169 transitions. [2024-11-23 22:55:52,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 22:55:52,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:52,963 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:52,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-23 22:55:53,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:53,163 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:53,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:53,164 INFO L85 PathProgramCache]: Analyzing trace with hash 805272121, now seen corresponding path program 1 times [2024-11-23 22:55:53,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:53,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761176578] [2024-11-23 22:55:53,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:53,164 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:53,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:53,166 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:53,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-23 22:55:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:53,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 22:55:53,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:53,643 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:53,643 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:55:53,644 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:53,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761176578] [2024-11-23 22:55:53,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761176578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:53,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:53,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:55:53,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611871939] [2024-11-23 22:55:53,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:53,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:55:53,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:53,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:55:53,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:55:53,646 INFO L87 Difference]: Start difference. First operand 121 states and 169 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:53,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:53,777 INFO L93 Difference]: Finished difference Result 246 states and 345 transitions. [2024-11-23 22:55:53,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:55:53,777 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-23 22:55:53,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:53,779 INFO L225 Difference]: With dead ends: 246 [2024-11-23 22:55:53,779 INFO L226 Difference]: Without dead ends: 128 [2024-11-23 22:55:53,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:55:53,780 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 1 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:53,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 652 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:55:53,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-23 22:55:53,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2024-11-23 22:55:53,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 113 states have (on average 1.336283185840708) internal successors, (151), 113 states have internal predecessors, (151), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:55:53,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 175 transitions. [2024-11-23 22:55:53,789 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 175 transitions. Word has length 119 [2024-11-23 22:55:53,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:53,790 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 175 transitions. [2024-11-23 22:55:53,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:53,790 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 175 transitions. [2024-11-23 22:55:53,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 22:55:53,792 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:53,792 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:53,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-23 22:55:53,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:53,996 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:53,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:53,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1714687813, now seen corresponding path program 1 times [2024-11-23 22:55:53,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:53,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [310154680] [2024-11-23 22:55:53,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:53,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:53,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:53,999 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:54,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-23 22:55:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:54,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 22:55:54,392 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:54,491 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:55:54,491 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:55:54,491 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:54,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [310154680] [2024-11-23 22:55:54,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [310154680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:54,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:54,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:55:54,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371478494] [2024-11-23 22:55:54,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:54,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:55:54,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:54,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:55:54,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:55:54,494 INFO L87 Difference]: Start difference. First operand 127 states and 175 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:54,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:54,639 INFO L93 Difference]: Finished difference Result 254 states and 351 transitions. [2024-11-23 22:55:54,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:55:54,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-23 22:55:54,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:54,641 INFO L225 Difference]: With dead ends: 254 [2024-11-23 22:55:54,641 INFO L226 Difference]: Without dead ends: 130 [2024-11-23 22:55:54,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:55:54,642 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 1 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:54,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 776 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:55:54,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-23 22:55:54,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 129. [2024-11-23 22:55:54,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 115 states have (on average 1.3304347826086957) internal successors, (153), 115 states have internal predecessors, (153), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:55:54,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 177 transitions. [2024-11-23 22:55:54,651 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 177 transitions. Word has length 119 [2024-11-23 22:55:54,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:54,651 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 177 transitions. [2024-11-23 22:55:54,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:55:54,652 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 177 transitions. [2024-11-23 22:55:54,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 22:55:54,653 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:54,654 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:54,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-23 22:55:54,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:54,854 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:54,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:54,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1712840771, now seen corresponding path program 1 times [2024-11-23 22:55:54,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:54,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677577424] [2024-11-23 22:55:54,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:54,855 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:54,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:54,857 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:54,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-23 22:55:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:55,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 22:55:55,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:55,493 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:55:55,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 65 [2024-11-23 22:55:55,547 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-23 22:55:55,548 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:55:55,548 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:55:55,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677577424] [2024-11-23 22:55:55,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677577424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:55,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:55,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:55:55,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395962086] [2024-11-23 22:55:55,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:55,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:55:55,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:55:55,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:55:55,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:55:55,550 INFO L87 Difference]: Start difference. First operand 129 states and 177 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:57,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:55:58,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:55:59,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:59,011 INFO L93 Difference]: Finished difference Result 255 states and 351 transitions. [2024-11-23 22:55:59,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:55:59,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2024-11-23 22:55:59,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:59,023 INFO L225 Difference]: With dead ends: 255 [2024-11-23 22:55:59,023 INFO L226 Difference]: Without dead ends: 129 [2024-11-23 22:55:59,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:55:59,024 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 127 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:59,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 440 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-23 22:55:59,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-23 22:55:59,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 127. [2024-11-23 22:55:59,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 113 states have (on average 1.3274336283185841) internal successors, (150), 113 states have internal predecessors, (150), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:55:59,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 174 transitions. [2024-11-23 22:55:59,032 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 174 transitions. Word has length 119 [2024-11-23 22:55:59,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:59,032 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 174 transitions. [2024-11-23 22:55:59,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:55:59,032 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 174 transitions. [2024-11-23 22:55:59,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-23 22:55:59,034 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:59,034 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:59,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-23 22:55:59,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:59,235 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:59,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:59,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1171625205, now seen corresponding path program 1 times [2024-11-23 22:55:59,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:55:59,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1847425679] [2024-11-23 22:55:59,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:59,236 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:55:59,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:55:59,238 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:55:59,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-23 22:55:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:59,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 22:55:59,655 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:55:59,890 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:55:59,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 64 [2024-11-23 22:56:00,008 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 108 proven. 8 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-23 22:56:00,009 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:56:00,462 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:00,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 1 [2024-11-23 22:56:00,484 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 22:56:00,484 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:00,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1847425679] [2024-11-23 22:56:00,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1847425679] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:56:00,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:56:00,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2024-11-23 22:56:00,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255459437] [2024-11-23 22:56:00,485 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:56:00,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 22:56:00,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:00,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 22:56:00,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:56:00,486 INFO L87 Difference]: Start difference. First operand 127 states and 174 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 4 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-23 22:56:04,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:56:05,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:56:06,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:06,234 INFO L93 Difference]: Finished difference Result 264 states and 360 transitions. [2024-11-23 22:56:06,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 22:56:06,244 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 4 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 121 [2024-11-23 22:56:06,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:06,245 INFO L225 Difference]: With dead ends: 264 [2024-11-23 22:56:06,246 INFO L226 Difference]: Without dead ends: 129 [2024-11-23 22:56:06,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2024-11-23 22:56:06,247 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 123 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:06,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 586 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-23 22:56:06,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-23 22:56:06,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 127. [2024-11-23 22:56:06,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 113 states have (on average 1.3097345132743363) internal successors, (148), 113 states have internal predecessors, (148), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:56:06,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 172 transitions. [2024-11-23 22:56:06,253 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 172 transitions. Word has length 121 [2024-11-23 22:56:06,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:06,253 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 172 transitions. [2024-11-23 22:56:06,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 4 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-23 22:56:06,254 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 172 transitions. [2024-11-23 22:56:06,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-23 22:56:06,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:06,255 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:06,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-23 22:56:06,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:06,456 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:06,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:06,456 INFO L85 PathProgramCache]: Analyzing trace with hash -217668809, now seen corresponding path program 1 times [2024-11-23 22:56:06,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:06,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576636689] [2024-11-23 22:56:06,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:06,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:06,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:06,459 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:06,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-23 22:56:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:06,853 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 22:56:06,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:07,065 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:07,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 65 [2024-11-23 22:56:07,113 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-23 22:56:07,113 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:56:07,113 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:07,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576636689] [2024-11-23 22:56:07,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [576636689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:07,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:07,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:56:07,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952369629] [2024-11-23 22:56:07,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:07,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:56:07,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:07,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:56:07,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:56:07,115 INFO L87 Difference]: Start difference. First operand 127 states and 172 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:56:09,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:56:10,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:56:11,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:11,167 INFO L93 Difference]: Finished difference Result 252 states and 342 transitions. [2024-11-23 22:56:11,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:56:11,186 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2024-11-23 22:56:11,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:11,188 INFO L225 Difference]: With dead ends: 252 [2024-11-23 22:56:11,188 INFO L226 Difference]: Without dead ends: 128 [2024-11-23 22:56:11,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:56:11,189 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 115 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:11,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 428 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-23 22:56:11,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-23 22:56:11,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2024-11-23 22:56:11,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 113 states have (on average 1.3008849557522124) internal successors, (147), 113 states have internal predecessors, (147), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:56:11,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 171 transitions. [2024-11-23 22:56:11,200 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 171 transitions. Word has length 121 [2024-11-23 22:56:11,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:11,200 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 171 transitions. [2024-11-23 22:56:11,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:56:11,201 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 171 transitions. [2024-11-23 22:56:11,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-23 22:56:11,203 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:11,203 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:11,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-23 22:56:11,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:11,404 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:11,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:11,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1294044413, now seen corresponding path program 1 times [2024-11-23 22:56:11,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:11,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887271116] [2024-11-23 22:56:11,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:11,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:11,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:11,408 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:11,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-23 22:56:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:12,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 22:56:12,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:12,356 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:12,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 65 [2024-11-23 22:56:12,416 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-23 22:56:12,416 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:56:12,416 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:12,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887271116] [2024-11-23 22:56:12,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887271116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:12,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:12,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:56:12,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084240838] [2024-11-23 22:56:12,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:12,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:56:12,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:12,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:56:12,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:56:12,418 INFO L87 Difference]: Start difference. First operand 127 states and 171 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:56:15,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:56:15,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:15,616 INFO L93 Difference]: Finished difference Result 252 states and 340 transitions. [2024-11-23 22:56:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:56:15,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2024-11-23 22:56:15,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:15,629 INFO L225 Difference]: With dead ends: 252 [2024-11-23 22:56:15,629 INFO L226 Difference]: Without dead ends: 128 [2024-11-23 22:56:15,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:56:15,630 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 107 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:15,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 424 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-23 22:56:15,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-23 22:56:15,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2024-11-23 22:56:15,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 113 states have (on average 1.2920353982300885) internal successors, (146), 113 states have internal predecessors, (146), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:56:15,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 170 transitions. [2024-11-23 22:56:15,638 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 170 transitions. Word has length 123 [2024-11-23 22:56:15,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:15,638 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 170 transitions. [2024-11-23 22:56:15,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:56:15,639 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 170 transitions. [2024-11-23 22:56:15,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 22:56:15,640 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:15,640 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:15,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2024-11-23 22:56:15,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:15,844 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:15,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:15,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1718754935, now seen corresponding path program 1 times [2024-11-23 22:56:15,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:15,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530659415] [2024-11-23 22:56:15,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:15,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:15,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:15,848 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:15,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-23 22:56:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:16,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 22:56:16,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:16,827 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:16,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 175 treesize of output 67 [2024-11-23 22:56:16,880 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-23 22:56:16,884 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:56:16,884 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:16,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530659415] [2024-11-23 22:56:16,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530659415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:16,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:16,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:56:16,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996327931] [2024-11-23 22:56:16,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:16,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:56:16,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:16,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:56:16,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:56:16,886 INFO L87 Difference]: Start difference. First operand 127 states and 170 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:56:19,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:19,930 INFO L93 Difference]: Finished difference Result 252 states and 338 transitions. [2024-11-23 22:56:19,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:56:19,940 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2024-11-23 22:56:19,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:19,941 INFO L225 Difference]: With dead ends: 252 [2024-11-23 22:56:19,941 INFO L226 Difference]: Without dead ends: 128 [2024-11-23 22:56:19,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:56:19,942 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 98 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:19,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 417 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-23 22:56:19,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-23 22:56:19,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2024-11-23 22:56:19,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 113 states have (on average 1.2831858407079646) internal successors, (145), 113 states have internal predecessors, (145), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:56:19,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 169 transitions. [2024-11-23 22:56:19,949 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 169 transitions. Word has length 125 [2024-11-23 22:56:19,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:19,949 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 169 transitions. [2024-11-23 22:56:19,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:56:19,949 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 169 transitions. [2024-11-23 22:56:19,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-23 22:56:19,950 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:19,951 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:19,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-23 22:56:20,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:20,151 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:20,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:20,152 INFO L85 PathProgramCache]: Analyzing trace with hash 592521789, now seen corresponding path program 1 times [2024-11-23 22:56:20,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:20,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259919873] [2024-11-23 22:56:20,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:20,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:20,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:20,156 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:20,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-23 22:56:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:20,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:56:20,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:20,772 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 17 treesize of output 9 [2024-11-23 22:56:20,810 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:56:20,810 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:56:20,810 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:20,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [259919873] [2024-11-23 22:56:20,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [259919873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:20,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:20,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:56:20,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22014574] [2024-11-23 22:56:20,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:20,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:56:20,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:20,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:56:20,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:56:20,812 INFO L87 Difference]: Start difference. First operand 127 states and 169 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:56:23,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:56:23,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:23,195 INFO L93 Difference]: Finished difference Result 251 states and 335 transitions. [2024-11-23 22:56:23,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:56:23,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2024-11-23 22:56:23,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:23,197 INFO L225 Difference]: With dead ends: 251 [2024-11-23 22:56:23,197 INFO L226 Difference]: Without dead ends: 127 [2024-11-23 22:56:23,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:56:23,198 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:23,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 263 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-23 22:56:23,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-23 22:56:23,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-23 22:56:23,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 113 states have (on average 1.2654867256637168) internal successors, (143), 113 states have internal predecessors, (143), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:56:23,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 167 transitions. [2024-11-23 22:56:23,206 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 167 transitions. Word has length 127 [2024-11-23 22:56:23,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:23,207 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 167 transitions. [2024-11-23 22:56:23,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:56:23,207 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 167 transitions. [2024-11-23 22:56:23,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-23 22:56:23,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:23,208 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:23,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-23 22:56:23,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:23,409 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:23,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:23,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1096421953, now seen corresponding path program 1 times [2024-11-23 22:56:23,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:23,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770160187] [2024-11-23 22:56:23,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:23,410 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:23,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:23,412 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:23,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-23 22:56:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:23,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 22:56:24,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:24,074 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 26 treesize of output 22 [2024-11-23 22:56:24,707 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 33 treesize of output 21 [2024-11-23 22:56:25,017 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 116 treesize of output 80 [2024-11-23 22:56:25,175 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:56:25,176 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:56:25,176 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:25,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770160187] [2024-11-23 22:56:25,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770160187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:25,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:25,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 22:56:25,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899287942] [2024-11-23 22:56:25,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:25,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 22:56:25,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:25,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 22:56:25,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:56:25,178 INFO L87 Difference]: Start difference. First operand 127 states and 167 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:56:28,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:28,157 INFO L93 Difference]: Finished difference Result 459 states and 606 transitions. [2024-11-23 22:56:28,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 22:56:28,158 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2024-11-23 22:56:28,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:28,160 INFO L225 Difference]: With dead ends: 459 [2024-11-23 22:56:28,161 INFO L226 Difference]: Without dead ends: 335 [2024-11-23 22:56:28,161 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:56:28,162 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 319 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:28,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1477 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-23 22:56:28,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-23 22:56:28,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 141. [2024-11-23 22:56:28,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 127 states have (on average 1.2834645669291338) internal successors, (163), 127 states have internal predecessors, (163), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:56:28,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 187 transitions. [2024-11-23 22:56:28,181 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 187 transitions. Word has length 127 [2024-11-23 22:56:28,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:28,183 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 187 transitions. [2024-11-23 22:56:28,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:56:28,183 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 187 transitions. [2024-11-23 22:56:28,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-23 22:56:28,184 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:28,184 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:28,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2024-11-23 22:56:28,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:28,385 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:28,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:28,386 INFO L85 PathProgramCache]: Analyzing trace with hash -2117490307, now seen corresponding path program 1 times [2024-11-23 22:56:28,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:28,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866031703] [2024-11-23 22:56:28,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:28,386 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:28,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:28,388 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:28,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-23 22:56:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:29,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-23 22:56:29,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:29,119 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 26 treesize of output 22 [2024-11-23 22:56:29,126 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 22 treesize of output 18 [2024-11-23 22:56:29,569 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:29,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 27 [2024-11-23 22:56:29,688 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:56:29,688 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:56:29,688 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:29,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866031703] [2024-11-23 22:56:29,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [866031703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:29,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:29,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:56:29,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766631368] [2024-11-23 22:56:29,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:29,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:56:29,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:29,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:56:29,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:56:29,689 INFO L87 Difference]: Start difference. First operand 141 states and 187 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:56:31,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:31,255 INFO L93 Difference]: Finished difference Result 502 states and 665 transitions. [2024-11-23 22:56:31,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 22:56:31,257 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2024-11-23 22:56:31,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:31,259 INFO L225 Difference]: With dead ends: 502 [2024-11-23 22:56:31,259 INFO L226 Difference]: Without dead ends: 364 [2024-11-23 22:56:31,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:56:31,260 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 234 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:31,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 1010 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 22:56:31,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-23 22:56:31,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 242. [2024-11-23 22:56:31,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 217 states have (on average 1.2764976958525345) internal successors, (277), 218 states have internal predecessors, (277), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:56:31,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 321 transitions. [2024-11-23 22:56:31,289 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 321 transitions. Word has length 127 [2024-11-23 22:56:31,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:31,289 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 321 transitions. [2024-11-23 22:56:31,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:56:31,289 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 321 transitions. [2024-11-23 22:56:31,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-23 22:56:31,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:31,291 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:31,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-11-23 22:56:31,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:31,492 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:31,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:31,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1315276671, now seen corresponding path program 1 times [2024-11-23 22:56:31,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:31,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153973373] [2024-11-23 22:56:31,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:31,496 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:31,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:31,512 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:31,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-23 22:56:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:32,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-23 22:56:32,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:32,129 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 26 treesize of output 22 [2024-11-23 22:56:32,419 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 33 treesize of output 21 [2024-11-23 22:56:32,607 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 91 treesize of output 67 [2024-11-23 22:56:32,699 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:56:32,699 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:56:32,699 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:32,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153973373] [2024-11-23 22:56:32,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153973373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:32,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:32,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 22:56:32,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453487511] [2024-11-23 22:56:32,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:32,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 22:56:32,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:32,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 22:56:32,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:56:32,701 INFO L87 Difference]: Start difference. First operand 242 states and 321 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:56:36,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:36,194 INFO L93 Difference]: Finished difference Result 776 states and 1027 transitions. [2024-11-23 22:56:36,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 22:56:36,195 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2024-11-23 22:56:36,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:36,202 INFO L225 Difference]: With dead ends: 776 [2024-11-23 22:56:36,202 INFO L226 Difference]: Without dead ends: 537 [2024-11-23 22:56:36,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:56:36,203 INFO L435 NwaCegarLoop]: 299 mSDtfsCounter, 236 mSDsluCounter, 1641 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:36,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 1940 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-23 22:56:36,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-23 22:56:36,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 247. [2024-11-23 22:56:36,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 222 states have (on average 1.2837837837837838) internal successors, (285), 223 states have internal predecessors, (285), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:56:36,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 329 transitions. [2024-11-23 22:56:36,243 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 329 transitions. Word has length 127 [2024-11-23 22:56:36,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:36,244 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 329 transitions. [2024-11-23 22:56:36,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:56:36,244 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 329 transitions. [2024-11-23 22:56:36,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-23 22:56:36,245 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:36,245 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:36,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2024-11-23 22:56:36,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:36,446 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:36,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:36,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2043463483, now seen corresponding path program 1 times [2024-11-23 22:56:36,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:36,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882108746] [2024-11-23 22:56:36,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:36,448 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:36,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:36,450 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:36,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-23 22:56:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:37,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 22:56:37,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:37,112 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 12 treesize of output 8 [2024-11-23 22:56:37,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 46 treesize of output 22 [2024-11-23 22:56:37,743 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 35 treesize of output 19 [2024-11-23 22:56:37,788 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-23 22:56:37,788 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:56:37,789 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:37,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882108746] [2024-11-23 22:56:37,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1882108746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:37,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:37,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 22:56:37,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790449662] [2024-11-23 22:56:37,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:37,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 22:56:37,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:37,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 22:56:37,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:56:37,790 INFO L87 Difference]: Start difference. First operand 247 states and 329 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 22:56:39,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:39,371 INFO L93 Difference]: Finished difference Result 595 states and 787 transitions. [2024-11-23 22:56:39,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 22:56:39,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 127 [2024-11-23 22:56:39,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:39,374 INFO L225 Difference]: With dead ends: 595 [2024-11-23 22:56:39,374 INFO L226 Difference]: Without dead ends: 351 [2024-11-23 22:56:39,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:56:39,375 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 320 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:39,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 1130 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 22:56:39,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-23 22:56:39,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 155. [2024-11-23 22:56:39,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 140 states have (on average 1.2785714285714285) internal successors, (179), 140 states have internal predecessors, (179), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:56:39,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 203 transitions. [2024-11-23 22:56:39,394 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 203 transitions. Word has length 127 [2024-11-23 22:56:39,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:39,394 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 203 transitions. [2024-11-23 22:56:39,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 22:56:39,394 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 203 transitions. [2024-11-23 22:56:39,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-23 22:56:39,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:39,395 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:39,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2024-11-23 22:56:39,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:39,599 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:39,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:39,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1605895043, now seen corresponding path program 1 times [2024-11-23 22:56:39,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:39,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83994239] [2024-11-23 22:56:39,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:39,600 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:39,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:39,602 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:39,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-23 22:56:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:40,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 22:56:40,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:40,229 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 12 treesize of output 8 [2024-11-23 22:56:40,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 38 treesize of output 18 [2024-11-23 22:56:40,667 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 27 treesize of output 15 [2024-11-23 22:56:40,712 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-23 22:56:40,713 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:56:40,713 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:40,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83994239] [2024-11-23 22:56:40,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83994239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:40,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:40,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 22:56:40,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462337624] [2024-11-23 22:56:40,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:40,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 22:56:40,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:40,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 22:56:40,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:56:40,714 INFO L87 Difference]: Start difference. First operand 155 states and 203 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 22:56:42,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:42,187 INFO L93 Difference]: Finished difference Result 398 states and 520 transitions. [2024-11-23 22:56:42,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 22:56:42,192 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 127 [2024-11-23 22:56:42,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:42,193 INFO L225 Difference]: With dead ends: 398 [2024-11-23 22:56:42,193 INFO L226 Difference]: Without dead ends: 246 [2024-11-23 22:56:42,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:56:42,194 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 274 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:42,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 823 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 22:56:42,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-23 22:56:42,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 155. [2024-11-23 22:56:42,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 140 states have (on average 1.2714285714285714) internal successors, (178), 140 states have internal predecessors, (178), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:56:42,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 202 transitions. [2024-11-23 22:56:42,224 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 202 transitions. Word has length 127 [2024-11-23 22:56:42,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:42,224 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 202 transitions. [2024-11-23 22:56:42,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 22:56:42,225 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 202 transitions. [2024-11-23 22:56:42,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-23 22:56:42,225 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:42,226 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:42,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-23 22:56:42,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:42,426 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:42,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:42,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1668003899, now seen corresponding path program 1 times [2024-11-23 22:56:42,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:42,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [507031992] [2024-11-23 22:56:42,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:42,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:42,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:42,429 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:42,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-23 22:56:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:42,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-23 22:56:42,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:43,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 52 treesize of output 43 [2024-11-23 22:56:43,642 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-23 22:56:43,642 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:56:43,642 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:43,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [507031992] [2024-11-23 22:56:43,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [507031992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:43,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:43,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 22:56:43,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942370918] [2024-11-23 22:56:43,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:43,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 22:56:43,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:43,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 22:56:43,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:56:43,644 INFO L87 Difference]: Start difference. First operand 155 states and 202 transitions. Second operand has 14 states, 12 states have (on average 6.333333333333333) internal successors, (76), 13 states have internal predecessors, (76), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 22:56:46,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:46,170 INFO L93 Difference]: Finished difference Result 402 states and 521 transitions. [2024-11-23 22:56:46,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-23 22:56:46,171 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.333333333333333) internal successors, (76), 13 states have internal predecessors, (76), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 127 [2024-11-23 22:56:46,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:46,173 INFO L225 Difference]: With dead ends: 402 [2024-11-23 22:56:46,173 INFO L226 Difference]: Without dead ends: 250 [2024-11-23 22:56:46,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2024-11-23 22:56:46,174 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 234 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:46,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 1077 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-23 22:56:46,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-23 22:56:46,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 158. [2024-11-23 22:56:46,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 142 states have (on average 1.2605633802816902) internal successors, (179), 142 states have internal predecessors, (179), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:56:46,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 203 transitions. [2024-11-23 22:56:46,196 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 203 transitions. Word has length 127 [2024-11-23 22:56:46,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:46,197 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 203 transitions. [2024-11-23 22:56:46,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.333333333333333) internal successors, (76), 13 states have internal predecessors, (76), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 22:56:46,197 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 203 transitions. [2024-11-23 22:56:46,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-23 22:56:46,200 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:46,200 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:46,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2024-11-23 22:56:46,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:46,404 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:46,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:46,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1533990393, now seen corresponding path program 1 times [2024-11-23 22:56:46,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:46,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458925246] [2024-11-23 22:56:46,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:46,405 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:46,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:46,407 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:46,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-23 22:56:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:47,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-23 22:56:47,228 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:47,237 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 [2024-11-23 22:56:47,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 33 treesize of output 33 [2024-11-23 22:56:47,470 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:47,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 29 [2024-11-23 22:56:47,625 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:56:47,625 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:56:47,625 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:47,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458925246] [2024-11-23 22:56:47,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458925246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:47,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:47,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 22:56:47,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827527683] [2024-11-23 22:56:47,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:47,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 22:56:47,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:47,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 22:56:47,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:56:47,627 INFO L87 Difference]: Start difference. First operand 158 states and 203 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:56:49,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:49,140 INFO L93 Difference]: Finished difference Result 400 states and 516 transitions. [2024-11-23 22:56:49,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 22:56:49,144 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2024-11-23 22:56:49,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:49,145 INFO L225 Difference]: With dead ends: 400 [2024-11-23 22:56:49,145 INFO L226 Difference]: Without dead ends: 245 [2024-11-23 22:56:49,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:56:49,146 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 106 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:49,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1310 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 22:56:49,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-23 22:56:49,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 158. [2024-11-23 22:56:49,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 142 states have (on average 1.2605633802816902) internal successors, (179), 142 states have internal predecessors, (179), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:56:49,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 203 transitions. [2024-11-23 22:56:49,167 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 203 transitions. Word has length 127 [2024-11-23 22:56:49,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:49,167 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 203 transitions. [2024-11-23 22:56:49,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:56:49,168 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 203 transitions. [2024-11-23 22:56:49,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-23 22:56:49,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:49,169 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:49,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2024-11-23 22:56:49,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:49,370 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:49,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:49,370 INFO L85 PathProgramCache]: Analyzing trace with hash -982123328, now seen corresponding path program 1 times [2024-11-23 22:56:49,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:49,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517149785] [2024-11-23 22:56:49,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:49,371 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:49,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:49,373 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:49,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-23 22:56:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:49,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 22:56:49,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:50,417 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 27 treesize of output 15 [2024-11-23 22:56:50,463 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 53 proven. 30 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-23 22:56:50,463 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:56:50,705 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:56:50,705 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:50,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517149785] [2024-11-23 22:56:50,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517149785] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 22:56:50,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:56:50,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-23 22:56:50,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722507865] [2024-11-23 22:56:50,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:50,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:56:50,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:50,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:56:50,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:56:50,706 INFO L87 Difference]: Start difference. First operand 158 states and 203 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:56:50,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:50,804 INFO L93 Difference]: Finished difference Result 342 states and 439 transitions. [2024-11-23 22:56:50,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:56:50,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 128 [2024-11-23 22:56:50,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:50,806 INFO L225 Difference]: With dead ends: 342 [2024-11-23 22:56:50,806 INFO L226 Difference]: Without dead ends: 187 [2024-11-23 22:56:50,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:56:50,807 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 102 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:50,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 436 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:56:50,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-23 22:56:50,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 158. [2024-11-23 22:56:50,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 142 states have (on average 1.2394366197183098) internal successors, (176), 142 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:56:50,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 200 transitions. [2024-11-23 22:56:50,827 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 200 transitions. Word has length 128 [2024-11-23 22:56:50,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:50,827 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 200 transitions. [2024-11-23 22:56:50,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:56:50,827 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 200 transitions. [2024-11-23 22:56:50,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-23 22:56:50,828 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:50,828 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:50,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-11-23 22:56:51,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:51,029 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:51,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:51,029 INFO L85 PathProgramCache]: Analyzing trace with hash -76402182, now seen corresponding path program 1 times [2024-11-23 22:56:51,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:51,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649256561] [2024-11-23 22:56:51,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:51,030 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:51,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:51,031 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:51,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-23 22:56:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:51,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 22:56:51,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:51,727 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 26 treesize of output 22 [2024-11-23 22:56:52,528 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:56:52,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 50 [2024-11-23 22:56:52,864 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 115 treesize of output 87 [2024-11-23 22:56:52,990 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:56:52,990 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:56:52,990 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:52,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649256561] [2024-11-23 22:56:52,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649256561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:52,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:52,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 22:56:52,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907716464] [2024-11-23 22:56:52,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:52,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 22:56:52,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:52,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 22:56:52,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:56:52,992 INFO L87 Difference]: Start difference. First operand 158 states and 200 transitions. Second operand has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:56:57,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:57,222 INFO L93 Difference]: Finished difference Result 593 states and 758 transitions. [2024-11-23 22:56:57,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 22:56:57,223 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 129 [2024-11-23 22:56:57,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:57,225 INFO L225 Difference]: With dead ends: 593 [2024-11-23 22:56:57,225 INFO L226 Difference]: Without dead ends: 438 [2024-11-23 22:56:57,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:56:57,226 INFO L435 NwaCegarLoop]: 363 mSDtfsCounter, 328 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 2451 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:57,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 2451 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-23 22:56:57,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-23 22:56:57,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 160. [2024-11-23 22:56:57,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 144 states have (on average 1.2430555555555556) internal successors, (179), 144 states have internal predecessors, (179), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:56:57,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 203 transitions. [2024-11-23 22:56:57,256 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 203 transitions. Word has length 129 [2024-11-23 22:56:57,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:57,257 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 203 transitions. [2024-11-23 22:56:57,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:56:57,257 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 203 transitions. [2024-11-23 22:56:57,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-23 22:56:57,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:57,258 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:57,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-11-23 22:56:57,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:57,459 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:57,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:57,460 INFO L85 PathProgramCache]: Analyzing trace with hash -14362568, now seen corresponding path program 1 times [2024-11-23 22:56:57,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:56:57,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [450665274] [2024-11-23 22:56:57,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:57,460 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:56:57,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:56:57,462 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:56:57,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-23 22:56:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:57,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 22:56:57,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:56:58,054 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 26 treesize of output 22 [2024-11-23 22:56:58,357 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 33 treesize of output 21 [2024-11-23 22:56:58,521 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 97 treesize of output 69 [2024-11-23 22:56:58,610 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:56:58,610 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:56:58,610 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:56:58,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [450665274] [2024-11-23 22:56:58,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [450665274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:58,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:58,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 22:56:58,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236762732] [2024-11-23 22:56:58,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:58,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 22:56:58,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:56:58,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 22:56:58,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:56:58,612 INFO L87 Difference]: Start difference. First operand 160 states and 203 transitions. Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:57:00,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:00,621 INFO L93 Difference]: Finished difference Result 515 states and 653 transitions. [2024-11-23 22:57:00,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 22:57:00,622 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 129 [2024-11-23 22:57:00,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:00,623 INFO L225 Difference]: With dead ends: 515 [2024-11-23 22:57:00,623 INFO L226 Difference]: Without dead ends: 358 [2024-11-23 22:57:00,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:57:00,624 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 304 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:00,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 1545 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-23 22:57:00,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-23 22:57:00,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 145. [2024-11-23 22:57:00,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 129 states have (on average 1.2403100775193798) internal successors, (160), 129 states have internal predecessors, (160), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:57:00,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 184 transitions. [2024-11-23 22:57:00,648 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 184 transitions. Word has length 129 [2024-11-23 22:57:00,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:00,648 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 184 transitions. [2024-11-23 22:57:00,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:57:00,648 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 184 transitions. [2024-11-23 22:57:00,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-23 22:57:00,651 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:00,652 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:00,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2024-11-23 22:57:00,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:00,852 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:00,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:00,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1021911570, now seen corresponding path program 1 times [2024-11-23 22:57:00,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:57:00,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485779286] [2024-11-23 22:57:00,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:00,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:00,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:57:00,855 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:57:00,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-23 22:57:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:01,431 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-23 22:57:01,435 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:57:01,448 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 34 treesize of output 30 [2024-11-23 22:57:01,686 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:57:01,686 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:57:01,686 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:57:01,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485779286] [2024-11-23 22:57:01,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485779286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:01,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:01,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:57:01,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424721198] [2024-11-23 22:57:01,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:01,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:57:01,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:57:01,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:57:01,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:57:01,688 INFO L87 Difference]: Start difference. First operand 145 states and 184 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:57:02,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:02,250 INFO L93 Difference]: Finished difference Result 390 states and 494 transitions. [2024-11-23 22:57:02,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:57:02,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 129 [2024-11-23 22:57:02,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:02,253 INFO L225 Difference]: With dead ends: 390 [2024-11-23 22:57:02,253 INFO L226 Difference]: Without dead ends: 248 [2024-11-23 22:57:02,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:57:02,254 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 94 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:02,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 786 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 22:57:02,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-23 22:57:02,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 179. [2024-11-23 22:57:02,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 163 states have (on average 1.2208588957055215) internal successors, (199), 163 states have internal predecessors, (199), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:57:02,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 223 transitions. [2024-11-23 22:57:02,282 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 223 transitions. Word has length 129 [2024-11-23 22:57:02,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:02,282 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 223 transitions. [2024-11-23 22:57:02,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:57:02,283 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 223 transitions. [2024-11-23 22:57:02,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-23 22:57:02,284 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:02,284 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:02,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-11-23 22:57:02,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:02,485 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:02,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:02,485 INFO L85 PathProgramCache]: Analyzing trace with hash 833817605, now seen corresponding path program 1 times [2024-11-23 22:57:02,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:57:02,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559421419] [2024-11-23 22:57:02,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:02,486 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:02,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:57:02,487 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:57:02,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-11-23 22:57:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:03,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 22:57:03,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:57:03,060 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 14 treesize of output 10 [2024-11-23 22:57:03,146 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 43 treesize of output 25 [2024-11-23 22:57:03,195 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:57:03,195 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:57:03,195 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:57:03,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559421419] [2024-11-23 22:57:03,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559421419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:03,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:03,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:57:03,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162726531] [2024-11-23 22:57:03,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:03,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:57:03,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:57:03,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:57:03,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:57:03,197 INFO L87 Difference]: Start difference. First operand 179 states and 223 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:57:03,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:03,503 INFO L93 Difference]: Finished difference Result 529 states and 661 transitions. [2024-11-23 22:57:03,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:57:03,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 130 [2024-11-23 22:57:03,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:03,506 INFO L225 Difference]: With dead ends: 529 [2024-11-23 22:57:03,506 INFO L226 Difference]: Without dead ends: 353 [2024-11-23 22:57:03,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:57:03,507 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 114 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:03,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 1074 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:57:03,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-23 22:57:03,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 345. [2024-11-23 22:57:03,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 314 states have (on average 1.2229299363057324) internal successors, (384), 314 states have internal predecessors, (384), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-23 22:57:03,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 432 transitions. [2024-11-23 22:57:03,558 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 432 transitions. Word has length 130 [2024-11-23 22:57:03,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:03,559 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 432 transitions. [2024-11-23 22:57:03,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:57:03,560 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 432 transitions. [2024-11-23 22:57:03,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-23 22:57:03,561 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:03,561 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:03,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2024-11-23 22:57:03,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:03,762 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:03,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:03,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1537921657, now seen corresponding path program 1 times [2024-11-23 22:57:03,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:57:03,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [622826134] [2024-11-23 22:57:03,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:03,763 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:03,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:57:03,764 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:57:03,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-11-23 22:57:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:04,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-23 22:57:04,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:57:04,333 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 26 treesize of output 22 [2024-11-23 22:57:05,748 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:57:05,748 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:57:05,748 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:57:05,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [622826134] [2024-11-23 22:57:05,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [622826134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:05,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:05,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 22:57:05,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555567265] [2024-11-23 22:57:05,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:05,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 22:57:05,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:57:05,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 22:57:05,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:57:05,750 INFO L87 Difference]: Start difference. First operand 345 states and 432 transitions. Second operand has 15 states, 15 states have (on average 4.866666666666666) internal successors, (73), 15 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:57:09,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:09,454 INFO L93 Difference]: Finished difference Result 1287 states and 1634 transitions. [2024-11-23 22:57:09,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 22:57:09,455 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.866666666666666) internal successors, (73), 15 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 130 [2024-11-23 22:57:09,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:09,458 INFO L225 Difference]: With dead ends: 1287 [2024-11-23 22:57:09,458 INFO L226 Difference]: Without dead ends: 945 [2024-11-23 22:57:09,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:57:09,459 INFO L435 NwaCegarLoop]: 359 mSDtfsCounter, 316 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:09,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 2263 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-23 22:57:09,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2024-11-23 22:57:09,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 391. [2024-11-23 22:57:09,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 360 states have (on average 1.2222222222222223) internal successors, (440), 360 states have internal predecessors, (440), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-23 22:57:09,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 488 transitions. [2024-11-23 22:57:09,519 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 488 transitions. Word has length 130 [2024-11-23 22:57:09,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:09,519 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 488 transitions. [2024-11-23 22:57:09,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.866666666666666) internal successors, (73), 15 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:57:09,520 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 488 transitions. [2024-11-23 22:57:09,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-23 22:57:09,521 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:09,521 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:09,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-11-23 22:57:09,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:09,722 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:09,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:09,722 INFO L85 PathProgramCache]: Analyzing trace with hash -2047394747, now seen corresponding path program 1 times [2024-11-23 22:57:09,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:57:09,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466148175] [2024-11-23 22:57:09,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:09,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:09,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:57:09,724 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:57:09,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-23 22:57:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:10,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 22:57:10,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:57:10,783 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 53 proven. 30 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-23 22:57:10,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:57:10,950 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:57:10,950 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:57:10,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466148175] [2024-11-23 22:57:10,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466148175] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 22:57:10,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:57:10,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-11-23 22:57:10,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742990180] [2024-11-23 22:57:10,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:10,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:57:10,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:57:10,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:57:10,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:57:10,952 INFO L87 Difference]: Start difference. First operand 391 states and 488 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:57:11,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:11,137 INFO L93 Difference]: Finished difference Result 836 states and 1046 transitions. [2024-11-23 22:57:11,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:57:11,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 130 [2024-11-23 22:57:11,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:11,140 INFO L225 Difference]: With dead ends: 836 [2024-11-23 22:57:11,140 INFO L226 Difference]: Without dead ends: 448 [2024-11-23 22:57:11,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:57:11,141 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 57 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:11,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 543 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:57:11,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-23 22:57:11,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 374. [2024-11-23 22:57:11,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 343 states have (on average 1.2128279883381925) internal successors, (416), 343 states have internal predecessors, (416), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-23 22:57:11,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 464 transitions. [2024-11-23 22:57:11,202 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 464 transitions. Word has length 130 [2024-11-23 22:57:11,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:11,203 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 464 transitions. [2024-11-23 22:57:11,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:57:11,203 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 464 transitions. [2024-11-23 22:57:11,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-23 22:57:11,204 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:11,204 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:11,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-11-23 22:57:11,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:11,405 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:11,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:11,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1769701771, now seen corresponding path program 1 times [2024-11-23 22:57:11,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:57:11,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405791787] [2024-11-23 22:57:11,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:11,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:11,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:57:11,409 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:57:11,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-11-23 22:57:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:12,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 22:57:12,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:57:12,473 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:57:12,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 51 [2024-11-23 22:57:12,546 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:57:12,546 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:57:12,546 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:57:12,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405791787] [2024-11-23 22:57:12,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1405791787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:12,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:12,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:57:12,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942039600] [2024-11-23 22:57:12,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:12,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:57:12,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:57:12,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:57:12,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:57:12,547 INFO L87 Difference]: Start difference. First operand 374 states and 464 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:57:13,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:13,603 INFO L93 Difference]: Finished difference Result 913 states and 1144 transitions. [2024-11-23 22:57:13,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:57:13,604 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 130 [2024-11-23 22:57:13,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:13,607 INFO L225 Difference]: With dead ends: 913 [2024-11-23 22:57:13,607 INFO L226 Difference]: Without dead ends: 542 [2024-11-23 22:57:13,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:57:13,608 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 92 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:13,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1151 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 22:57:13,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-23 22:57:13,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 193. [2024-11-23 22:57:13,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 177 states have (on average 1.2090395480225988) internal successors, (214), 177 states have internal predecessors, (214), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:57:13,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 238 transitions. [2024-11-23 22:57:13,637 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 238 transitions. Word has length 130 [2024-11-23 22:57:13,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:13,638 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 238 transitions. [2024-11-23 22:57:13,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:57:13,638 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 238 transitions. [2024-11-23 22:57:13,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-23 22:57:13,639 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:13,639 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:13,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-11-23 22:57:13,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:13,840 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:13,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:13,840 INFO L85 PathProgramCache]: Analyzing trace with hash 885128077, now seen corresponding path program 1 times [2024-11-23 22:57:13,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:57:13,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161522818] [2024-11-23 22:57:13,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:13,841 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:13,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:57:13,842 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:57:13,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-11-23 22:57:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:14,527 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-23 22:57:14,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:57:15,461 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 50 treesize of output 34 [2024-11-23 22:57:15,586 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 37 treesize of output 21 [2024-11-23 22:57:15,691 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-23 22:57:15,692 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:57:15,692 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:57:15,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161522818] [2024-11-23 22:57:15,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161522818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:15,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:15,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 22:57:15,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773534956] [2024-11-23 22:57:15,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:15,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 22:57:15,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:57:15,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 22:57:15,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:57:15,693 INFO L87 Difference]: Start difference. First operand 193 states and 238 transitions. Second operand has 15 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 22:57:18,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:18,511 INFO L93 Difference]: Finished difference Result 504 states and 628 transitions. [2024-11-23 22:57:18,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-23 22:57:18,512 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 131 [2024-11-23 22:57:18,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:18,514 INFO L225 Difference]: With dead ends: 504 [2024-11-23 22:57:18,514 INFO L226 Difference]: Without dead ends: 314 [2024-11-23 22:57:18,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2024-11-23 22:57:18,514 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 304 mSDsluCounter, 1312 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:18,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1474 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-23 22:57:18,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-23 22:57:18,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 242. [2024-11-23 22:57:18,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 226 states have (on average 1.2168141592920354) internal successors, (275), 226 states have internal predecessors, (275), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:57:18,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 299 transitions. [2024-11-23 22:57:18,534 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 299 transitions. Word has length 131 [2024-11-23 22:57:18,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:18,534 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 299 transitions. [2024-11-23 22:57:18,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 22:57:18,534 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 299 transitions. [2024-11-23 22:57:18,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-23 22:57:18,535 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:18,535 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:18,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-11-23 22:57:18,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:18,736 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:18,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:18,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1471934091, now seen corresponding path program 1 times [2024-11-23 22:57:18,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:57:18,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861387564] [2024-11-23 22:57:18,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:18,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:18,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:57:18,738 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:57:18,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-11-23 22:57:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:19,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 22:57:19,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:57:19,381 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 49 treesize of output 25 [2024-11-23 22:57:19,427 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:57:19,427 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:57:19,427 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:57:19,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861387564] [2024-11-23 22:57:19,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861387564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:19,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:19,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:57:19,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095281582] [2024-11-23 22:57:19,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:19,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:57:19,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:57:19,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:57:19,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:57:19,429 INFO L87 Difference]: Start difference. First operand 242 states and 299 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:57:19,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:19,888 INFO L93 Difference]: Finished difference Result 601 states and 740 transitions. [2024-11-23 22:57:19,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:57:19,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 131 [2024-11-23 22:57:19,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:19,890 INFO L225 Difference]: With dead ends: 601 [2024-11-23 22:57:19,890 INFO L226 Difference]: Without dead ends: 362 [2024-11-23 22:57:19,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:57:19,891 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 100 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:19,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 612 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 22:57:19,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-23 22:57:19,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 278. [2024-11-23 22:57:19,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 262 states have (on average 1.1946564885496183) internal successors, (313), 262 states have internal predecessors, (313), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:57:19,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 337 transitions. [2024-11-23 22:57:19,915 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 337 transitions. Word has length 131 [2024-11-23 22:57:19,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:19,915 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 337 transitions. [2024-11-23 22:57:19,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:57:19,915 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 337 transitions. [2024-11-23 22:57:19,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-23 22:57:19,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:19,916 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:19,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-11-23 22:57:20,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:20,117 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:20,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:20,117 INFO L85 PathProgramCache]: Analyzing trace with hash -152522249, now seen corresponding path program 1 times [2024-11-23 22:57:20,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:57:20,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110309078] [2024-11-23 22:57:20,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:20,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:20,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:57:20,120 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:57:20,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-11-23 22:57:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:20,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-23 22:57:20,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:57:21,760 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 51 treesize of output 35 [2024-11-23 22:57:21,916 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 57 treesize of output 33 [2024-11-23 22:57:22,042 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-23 22:57:22,042 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:57:22,042 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:57:22,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110309078] [2024-11-23 22:57:22,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [110309078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:22,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:22,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 22:57:22,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627404518] [2024-11-23 22:57:22,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:22,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 22:57:22,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:57:22,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 22:57:22,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:57:22,043 INFO L87 Difference]: Start difference. First operand 278 states and 337 transitions. Second operand has 15 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 22:57:24,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:24,630 INFO L93 Difference]: Finished difference Result 621 states and 758 transitions. [2024-11-23 22:57:24,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-23 22:57:24,630 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 131 [2024-11-23 22:57:24,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:24,632 INFO L225 Difference]: With dead ends: 621 [2024-11-23 22:57:24,632 INFO L226 Difference]: Without dead ends: 346 [2024-11-23 22:57:24,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2024-11-23 22:57:24,633 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 284 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:24,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 875 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-23 22:57:24,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-23 22:57:24,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 279. [2024-11-23 22:57:24,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 263 states have (on average 1.193916349809886) internal successors, (314), 263 states have internal predecessors, (314), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:57:24,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 338 transitions. [2024-11-23 22:57:24,661 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 338 transitions. Word has length 131 [2024-11-23 22:57:24,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:24,662 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 338 transitions. [2024-11-23 22:57:24,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 22:57:24,662 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 338 transitions. [2024-11-23 22:57:24,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-23 22:57:24,663 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:24,663 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:24,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2024-11-23 22:57:24,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:24,864 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:24,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:24,864 INFO L85 PathProgramCache]: Analyzing trace with hash -756929015, now seen corresponding path program 1 times [2024-11-23 22:57:24,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:57:24,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792053296] [2024-11-23 22:57:24,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:24,864 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:24,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:57:24,866 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:57:24,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-11-23 22:57:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:25,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:57:25,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:57:25,713 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 17 treesize of output 9 [2024-11-23 22:57:25,743 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 22:57:25,743 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:57:25,743 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:57:25,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792053296] [2024-11-23 22:57:25,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [792053296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:25,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:25,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:57:25,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139285043] [2024-11-23 22:57:25,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:25,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:57:25,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:57:25,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:57:25,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:57:25,746 INFO L87 Difference]: Start difference. First operand 279 states and 338 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:57:27,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:57:27,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:27,684 INFO L93 Difference]: Finished difference Result 555 states and 673 transitions. [2024-11-23 22:57:27,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:57:27,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 131 [2024-11-23 22:57:27,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:27,686 INFO L225 Difference]: With dead ends: 555 [2024-11-23 22:57:27,686 INFO L226 Difference]: Without dead ends: 279 [2024-11-23 22:57:27,686 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:57:27,687 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:27,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 256 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-23 22:57:27,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-11-23 22:57:27,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2024-11-23 22:57:27,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 263 states have (on average 1.1901140684410647) internal successors, (313), 263 states have internal predecessors, (313), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:57:27,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 337 transitions. [2024-11-23 22:57:27,725 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 337 transitions. Word has length 131 [2024-11-23 22:57:27,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:27,726 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 337 transitions. [2024-11-23 22:57:27,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-23 22:57:27,726 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 337 transitions. [2024-11-23 22:57:27,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-23 22:57:27,727 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:27,727 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:27,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2024-11-23 22:57:27,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:27,931 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:27,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:27,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1149956025, now seen corresponding path program 1 times [2024-11-23 22:57:27,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:57:27,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66347208] [2024-11-23 22:57:27,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:27,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:27,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:57:27,934 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:57:27,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-11-23 22:57:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:29,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-23 22:57:29,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:57:29,253 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 12 treesize of output 8 [2024-11-23 22:57:29,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 28 treesize of output 23 [2024-11-23 22:57:29,875 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:57:29,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 31 [2024-11-23 22:57:29,961 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-23 22:57:29,961 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:57:29,961 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:57:29,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66347208] [2024-11-23 22:57:29,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66347208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:29,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:29,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:57:29,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538562237] [2024-11-23 22:57:29,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:29,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:57:29,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:57:29,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:57:29,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:57:29,962 INFO L87 Difference]: Start difference. First operand 279 states and 337 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:57:30,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:30,341 INFO L93 Difference]: Finished difference Result 322 states and 391 transitions. [2024-11-23 22:57:30,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:57:30,342 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 131 [2024-11-23 22:57:30,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:30,343 INFO L225 Difference]: With dead ends: 322 [2024-11-23 22:57:30,343 INFO L226 Difference]: Without dead ends: 320 [2024-11-23 22:57:30,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:57:30,343 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 129 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:30,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 717 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:57:30,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-23 22:57:30,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 319. [2024-11-23 22:57:30,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 296 states have (on average 1.1891891891891893) internal successors, (352), 297 states have internal predecessors, (352), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 22:57:30,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 388 transitions. [2024-11-23 22:57:30,381 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 388 transitions. Word has length 131 [2024-11-23 22:57:30,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:30,382 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 388 transitions. [2024-11-23 22:57:30,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:57:30,382 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 388 transitions. [2024-11-23 22:57:30,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-23 22:57:30,383 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:30,383 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:30,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2024-11-23 22:57:30,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:30,583 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:30,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:30,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1148108983, now seen corresponding path program 1 times [2024-11-23 22:57:30,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:57:30,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189800901] [2024-11-23 22:57:30,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:30,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:30,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:57:30,586 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:57:30,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2024-11-23 22:57:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:31,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-23 22:57:31,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:57:31,844 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 19 treesize of output 1 [2024-11-23 22:57:31,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 19 [2024-11-23 22:57:32,016 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 18 treesize of output 10 [2024-11-23 22:57:33,064 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 22:57:33,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 62 [2024-11-23 22:57:33,175 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 22:57:33,175 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:57:33,175 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:57:33,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189800901] [2024-11-23 22:57:33,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1189800901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:33,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:33,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 22:57:33,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750939444] [2024-11-23 22:57:33,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:33,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 22:57:33,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:57:33,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 22:57:33,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:57:33,177 INFO L87 Difference]: Start difference. First operand 319 states and 388 transitions. Second operand has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 14 states have internal predecessors, (77), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:57:36,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:36,930 INFO L93 Difference]: Finished difference Result 683 states and 824 transitions. [2024-11-23 22:57:36,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-23 22:57:36,931 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 14 states have internal predecessors, (77), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 131 [2024-11-23 22:57:36,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:36,932 INFO L225 Difference]: With dead ends: 683 [2024-11-23 22:57:36,932 INFO L226 Difference]: Without dead ends: 400 [2024-11-23 22:57:36,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=169, Invalid=887, Unknown=0, NotChecked=0, Total=1056 [2024-11-23 22:57:36,933 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 295 mSDsluCounter, 1234 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1367 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:36,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1367 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-23 22:57:36,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-23 22:57:36,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 327. [2024-11-23 22:57:36,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 301 states have (on average 1.1827242524916943) internal successors, (356), 302 states have internal predecessors, (356), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-23 22:57:36,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 396 transitions. [2024-11-23 22:57:36,973 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 396 transitions. Word has length 131 [2024-11-23 22:57:36,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:36,973 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 396 transitions. [2024-11-23 22:57:36,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 14 states have internal predecessors, (77), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 22:57:36,973 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 396 transitions. [2024-11-23 22:57:36,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-23 22:57:36,974 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:36,975 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:36,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2024-11-23 22:57:37,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:37,176 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:37,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:37,177 INFO L85 PathProgramCache]: Analyzing trace with hash 626898379, now seen corresponding path program 1 times [2024-11-23 22:57:37,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:57:37,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353220819] [2024-11-23 22:57:37,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:37,177 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:57:37,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:57:37,181 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:57:37,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bf5c792-4960-4db4-89f3-0be3c403bb28/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process