./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.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_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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_434c4403-0b58-47e3-ac68-f9cc517336cb/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 68b0cda5422c6df9a05dd00f43cb56ae62ac5ef3a6cb82099875e56a3f490744 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:02:26,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:02:26,707 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:02:26,718 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:02:26,721 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:02:26,773 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:02:26,775 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:02:26,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:02:26,776 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:02:26,777 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:02:26,777 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:02:26,778 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:02:26,778 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:02:26,778 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:02:26,779 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:02:26,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:02:26,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:02:26,781 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:02:26,781 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:02:26,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:02:26,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:02:26,782 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:02:26,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:02:26,782 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:02:26,782 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:02:26,782 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:02:26,782 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:02:26,782 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:02:26,783 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:02:26,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:02:26,783 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:02:26,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:02:26,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:02:26,783 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:02:26,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:02:26,783 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:02:26,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:02:26,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:02:26,784 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:02:26,784 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:02:26,784 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:02:26,784 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:02:26,784 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:02:26,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:02:26,784 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:02:26,784 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:02:26,784 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:02:26,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:02:26,785 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_434c4403-0b58-47e3-ac68-f9cc517336cb/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 -> 68b0cda5422c6df9a05dd00f43cb56ae62ac5ef3a6cb82099875e56a3f490744 [2024-11-24 00:02:27,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:02:27,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:02:27,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:02:27,184 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:02:27,185 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:02:27,186 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i [2024-11-24 00:02:30,594 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/data/91212b86e/93dbaf81adea48f0a37b424a907deb3a/FLAGf9234bf31 [2024-11-24 00:02:30,990 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:02:30,991 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i [2024-11-24 00:02:31,009 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/data/91212b86e/93dbaf81adea48f0a37b424a907deb3a/FLAGf9234bf31 [2024-11-24 00:02:31,040 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/data/91212b86e/93dbaf81adea48f0a37b424a907deb3a [2024-11-24 00:02:31,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:02:31,047 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:02:31,049 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:02:31,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:02:31,056 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:02:31,057 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:02:31" (1/1) ... [2024-11-24 00:02:31,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bbec48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:31, skipping insertion in model container [2024-11-24 00:02:31,061 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:02:31" (1/1) ... [2024-11-24 00:02:31,091 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:02:31,311 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_434c4403-0b58-47e3-ac68-f9cc517336cb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i[915,928] [2024-11-24 00:02:31,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:02:31,428 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:02:31,442 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_434c4403-0b58-47e3-ac68-f9cc517336cb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i[915,928] [2024-11-24 00:02:31,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:02:31,515 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:02:31,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:31 WrapperNode [2024-11-24 00:02:31,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:02:31,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:02:31,518 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:02:31,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:02:31,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:31" (1/1) ... [2024-11-24 00:02:31,552 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:31" (1/1) ... [2024-11-24 00:02:31,616 INFO L138 Inliner]: procedures = 29, calls = 103, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 341 [2024-11-24 00:02:31,616 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:02:31,617 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:02:31,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:02:31,625 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:02:31,639 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:31" (1/1) ... [2024-11-24 00:02:31,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:31" (1/1) ... [2024-11-24 00:02:31,652 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:31" (1/1) ... [2024-11-24 00:02:31,694 INFO L175 MemorySlicer]: Split 86 memory accesses to 2 slices as follows [2, 84]. 98 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 9]. The 13 writes are split as follows [0, 13]. [2024-11-24 00:02:31,696 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:31" (1/1) ... [2024-11-24 00:02:31,697 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:31" (1/1) ... [2024-11-24 00:02:31,723 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:31" (1/1) ... [2024-11-24 00:02:31,729 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:31" (1/1) ... [2024-11-24 00:02:31,736 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:31" (1/1) ... [2024-11-24 00:02:31,745 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:31" (1/1) ... [2024-11-24 00:02:31,747 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:31" (1/1) ... [2024-11-24 00:02:31,756 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:02:31,757 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:02:31,761 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:02:31,761 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:02:31,762 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:31" (1/1) ... [2024-11-24 00:02:31,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:02:31,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:31,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:02:31,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:02:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:02:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-24 00:02:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-24 00:02:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:02:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:02:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-24 00:02:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-24 00:02:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:02:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:02:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-24 00:02:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-24 00:02:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:02:31,844 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:02:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:02:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:02:31,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:02:31,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:02:32,024 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:02:32,027 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:02:32,627 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-11-24 00:02:32,627 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:02:32,648 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:02:32,651 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:02:32,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:02:32 BoogieIcfgContainer [2024-11-24 00:02:32,651 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:02:32,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:02:32,656 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:02:32,662 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:02:32,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:02:31" (1/3) ... [2024-11-24 00:02:32,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a95700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:02:32, skipping insertion in model container [2024-11-24 00:02:32,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:31" (2/3) ... [2024-11-24 00:02:32,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a95700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:02:32, skipping insertion in model container [2024-11-24 00:02:32,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:02:32" (3/3) ... [2024-11-24 00:02:32,668 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-9.i [2024-11-24 00:02:32,687 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:02:32,689 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-9.i that has 2 procedures, 76 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:02:32,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:02:32,799 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;@6de16170, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:02:32,799 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:02:32,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 69 states have internal predecessors, (97), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:02:32,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:02:32,817 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:32,818 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:32,818 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:02:32,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:32,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1156031742, now seen corresponding path program 1 times [2024-11-24 00:02:32,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:32,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087166886] [2024-11-24 00:02:32,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:32,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:33,233 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-24 00:02:33,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:33,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087166886] [2024-11-24 00:02:33,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087166886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:02:33,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260873371] [2024-11-24 00:02:33,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:33,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:33,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:33,238 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:33,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:02:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:33,531 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:02:33,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:33,566 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-24 00:02:33,570 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:02:33,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260873371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:02:33,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:02:33,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:02:33,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749957272] [2024-11-24 00:02:33,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:02:33,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:02:33,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:33,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:02:33,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:02:33,604 INFO L87 Difference]: Start difference. First operand has 76 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 69 states have internal predecessors, (97), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:02:33,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:33,634 INFO L93 Difference]: Finished difference Result 145 states and 213 transitions. [2024-11-24 00:02:33,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:02:33,636 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-11-24 00:02:33,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:33,646 INFO L225 Difference]: With dead ends: 145 [2024-11-24 00:02:33,646 INFO L226 Difference]: Without dead ends: 72 [2024-11-24 00:02:33,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:02:33,657 INFO L435 NwaCegarLoop]: 100 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, 100 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 [2024-11-24 00:02:33,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:02:33,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-24 00:02:33,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-24 00:02:33,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 65 states have internal predecessors, (90), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:02:33,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 100 transitions. [2024-11-24 00:02:33,710 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 100 transitions. Word has length 62 [2024-11-24 00:02:33,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:33,710 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 100 transitions. [2024-11-24 00:02:33,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:02:33,710 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2024-11-24 00:02:33,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:02:33,714 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:33,714 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:33,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:02:33,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:33,919 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:02:33,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:33,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1779963588, now seen corresponding path program 1 times [2024-11-24 00:02:33,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:33,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764814673] [2024-11-24 00:02:33,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:33,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:34,406 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:02:34,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:34,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764814673] [2024-11-24 00:02:34,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764814673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:02:34,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:02:34,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:02:34,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139187668] [2024-11-24 00:02:34,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:02:34,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:02:34,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:34,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:02:34,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:02:34,408 INFO L87 Difference]: Start difference. First operand 72 states and 100 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:34,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:34,473 INFO L93 Difference]: Finished difference Result 144 states and 201 transitions. [2024-11-24 00:02:34,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:02:34,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-11-24 00:02:34,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:34,477 INFO L225 Difference]: With dead ends: 144 [2024-11-24 00:02:34,477 INFO L226 Difference]: Without dead ends: 75 [2024-11-24 00:02:34,477 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 [2024-11-24 00:02:34,478 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 280 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 [2024-11-24 00:02:34,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 280 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:02:34,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-24 00:02:34,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2024-11-24 00:02:34,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 67 states have (on average 1.373134328358209) internal successors, (92), 67 states have internal predecessors, (92), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:02:34,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2024-11-24 00:02:34,496 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 102 transitions. Word has length 62 [2024-11-24 00:02:34,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:34,497 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 102 transitions. [2024-11-24 00:02:34,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:34,502 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 102 transitions. [2024-11-24 00:02:34,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:02:34,503 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:34,503 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:34,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:02:34,504 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:02:34,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:34,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1813939130, now seen corresponding path program 1 times [2024-11-24 00:02:34,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:34,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123305206] [2024-11-24 00:02:34,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:34,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:35,361 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:02:35,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:35,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123305206] [2024-11-24 00:02:35,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123305206] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:02:35,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891411442] [2024-11-24 00:02:35,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:35,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:35,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:35,367 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:35,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:02:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:35,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:02:35,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:35,683 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:02:35,685 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:02:35,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891411442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:02:35,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:02:35,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-24 00:02:35,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125463898] [2024-11-24 00:02:35,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:02:35,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:02:35,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:35,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:02:35,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:02:35,687 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:35,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:35,761 INFO L93 Difference]: Finished difference Result 148 states and 205 transitions. [2024-11-24 00:02:35,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:02:35,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-11-24 00:02:35,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:35,766 INFO L225 Difference]: With dead ends: 148 [2024-11-24 00:02:35,767 INFO L226 Difference]: Without dead ends: 77 [2024-11-24 00:02:35,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:02:35,768 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:35,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 281 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:02:35,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-24 00:02:35,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2024-11-24 00:02:35,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 69 states have internal predecessors, (94), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:02:35,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 104 transitions. [2024-11-24 00:02:35,779 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 104 transitions. Word has length 62 [2024-11-24 00:02:35,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:35,780 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 104 transitions. [2024-11-24 00:02:35,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:35,780 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 104 transitions. [2024-11-24 00:02:35,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:02:35,782 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:35,782 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:35,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:02:35,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:35,983 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:02:35,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:35,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1133880760, now seen corresponding path program 1 times [2024-11-24 00:02:35,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:35,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985481528] [2024-11-24 00:02:35,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:35,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:36,527 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:02:36,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:36,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985481528] [2024-11-24 00:02:36,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985481528] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:02:36,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729353106] [2024-11-24 00:02:36,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:36,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:36,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:36,536 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:36,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:02:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:36,751 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:02:36,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:36,797 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:02:36,797 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:02:36,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729353106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:02:36,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:02:36,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-24 00:02:36,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503503123] [2024-11-24 00:02:36,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:02:36,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:02:36,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:36,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:02:36,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:02:36,799 INFO L87 Difference]: Start difference. First operand 76 states and 104 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:36,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:36,842 INFO L93 Difference]: Finished difference Result 152 states and 209 transitions. [2024-11-24 00:02:36,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:02:36,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-11-24 00:02:36,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:36,846 INFO L225 Difference]: With dead ends: 152 [2024-11-24 00:02:36,846 INFO L226 Difference]: Without dead ends: 79 [2024-11-24 00:02:36,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:02:36,847 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:36,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 282 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:02:36,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-24 00:02:36,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2024-11-24 00:02:36,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 71 states have (on average 1.352112676056338) internal successors, (96), 71 states have internal predecessors, (96), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:02:36,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 106 transitions. [2024-11-24 00:02:36,863 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 106 transitions. Word has length 62 [2024-11-24 00:02:36,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:36,863 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 106 transitions. [2024-11-24 00:02:36,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:36,864 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 106 transitions. [2024-11-24 00:02:36,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:02:36,868 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:36,868 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:36,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:02:37,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:37,069 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:02:37,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:37,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1132033718, now seen corresponding path program 1 times [2024-11-24 00:02:37,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:37,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962451961] [2024-11-24 00:02:37,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:37,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:37,455 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:02:37,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:37,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962451961] [2024-11-24 00:02:37,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962451961] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:02:37,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692836114] [2024-11-24 00:02:37,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:37,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:37,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:37,462 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:37,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:02:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:37,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:02:37,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:37,779 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 19 treesize of output 7 [2024-11-24 00:02:37,915 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 [2024-11-24 00:02:37,929 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 19 treesize of output 7 [2024-11-24 00:02:37,948 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:02:37,948 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:02:37,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692836114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:02:37,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:02:37,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2024-11-24 00:02:37,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714604156] [2024-11-24 00:02:37,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:02:37,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:02:37,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:37,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:02:37,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:02:37,950 INFO L87 Difference]: Start difference. First operand 78 states and 106 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:38,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:38,323 INFO L93 Difference]: Finished difference Result 279 states and 382 transitions. [2024-11-24 00:02:38,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:02:38,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-11-24 00:02:38,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:38,326 INFO L225 Difference]: With dead ends: 279 [2024-11-24 00:02:38,326 INFO L226 Difference]: Without dead ends: 204 [2024-11-24 00:02:38,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:02:38,328 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 211 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:38,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 240 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:02:38,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-24 00:02:38,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 149. [2024-11-24 00:02:38,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 136 states have (on average 1.3529411764705883) internal successors, (184), 136 states have internal predecessors, (184), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-24 00:02:38,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 204 transitions. [2024-11-24 00:02:38,348 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 204 transitions. Word has length 62 [2024-11-24 00:02:38,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:38,348 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 204 transitions. [2024-11-24 00:02:38,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:38,348 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 204 transitions. [2024-11-24 00:02:38,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-24 00:02:38,350 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:38,350 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:38,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 00:02:38,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:38,551 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:02:38,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:38,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1248313765, now seen corresponding path program 1 times [2024-11-24 00:02:38,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:38,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250824254] [2024-11-24 00:02:38,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:38,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:40,179 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:02:40,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:40,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250824254] [2024-11-24 00:02:40,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250824254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:02:40,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:02:40,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:02:40,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880490407] [2024-11-24 00:02:40,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:02:40,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:02:40,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:40,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:02:40,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:02:40,181 INFO L87 Difference]: Start difference. First operand 149 states and 204 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:02:40,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:40,530 INFO L93 Difference]: Finished difference Result 301 states and 413 transitions. [2024-11-24 00:02:40,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:02:40,531 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2024-11-24 00:02:40,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:40,533 INFO L225 Difference]: With dead ends: 301 [2024-11-24 00:02:40,535 INFO L226 Difference]: Without dead ends: 155 [2024-11-24 00:02:40,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:02:40,540 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 48 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:40,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 304 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:02:40,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-24 00:02:40,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2024-11-24 00:02:40,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 140 states have (on average 1.3428571428571427) internal successors, (188), 140 states have internal predecessors, (188), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-24 00:02:40,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 208 transitions. [2024-11-24 00:02:40,574 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 208 transitions. Word has length 63 [2024-11-24 00:02:40,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:40,575 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 208 transitions. [2024-11-24 00:02:40,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:02:40,575 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 208 transitions. [2024-11-24 00:02:40,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-24 00:02:40,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:40,581 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:40,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:02:40,581 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:02:40,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:40,582 INFO L85 PathProgramCache]: Analyzing trace with hash -2085121383, now seen corresponding path program 1 times [2024-11-24 00:02:40,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:40,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565239229] [2024-11-24 00:02:40,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:40,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:41,255 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:02:41,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:41,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565239229] [2024-11-24 00:02:41,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565239229] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:02:41,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501155570] [2024-11-24 00:02:41,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:41,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:41,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:41,258 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:41,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:02:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:41,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 00:02:41,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:41,525 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 19 treesize of output 7 [2024-11-24 00:02:41,641 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 [2024-11-24 00:02:41,652 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 29 treesize of output 22 [2024-11-24 00:02:41,722 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:02:41,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 44 treesize of output 25 [2024-11-24 00:02:41,767 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:02:41,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 55 treesize of output 25 [2024-11-24 00:02:41,809 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:02:41,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 40 treesize of output 25 [2024-11-24 00:02:41,857 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:02:41,858 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 34 treesize of output 10 [2024-11-24 00:02:41,878 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:02:41,882 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:02:41,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501155570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:02:41,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:02:41,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-24 00:02:41,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733272709] [2024-11-24 00:02:41,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:02:41,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:02:41,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:41,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:02:41,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:02:41,884 INFO L87 Difference]: Start difference. First operand 153 states and 208 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:42,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:42,430 INFO L93 Difference]: Finished difference Result 385 states and 523 transitions. [2024-11-24 00:02:42,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:02:42,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 67 [2024-11-24 00:02:42,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:42,434 INFO L225 Difference]: With dead ends: 385 [2024-11-24 00:02:42,434 INFO L226 Difference]: Without dead ends: 235 [2024-11-24 00:02:42,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 66 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:02:42,435 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 222 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:42,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 322 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:02:42,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-24 00:02:42,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 153. [2024-11-24 00:02:42,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 140 states have (on average 1.3357142857142856) internal successors, (187), 140 states have internal predecessors, (187), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-24 00:02:42,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 207 transitions. [2024-11-24 00:02:42,461 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 207 transitions. Word has length 67 [2024-11-24 00:02:42,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:42,462 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 207 transitions. [2024-11-24 00:02:42,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:42,462 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 207 transitions. [2024-11-24 00:02:42,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-24 00:02:42,463 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:42,463 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:42,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 00:02:42,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:42,664 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:02:42,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:42,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1013672813, now seen corresponding path program 1 times [2024-11-24 00:02:42,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:42,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123247549] [2024-11-24 00:02:42,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:42,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:42,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:43,123 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:02:43,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:43,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123247549] [2024-11-24 00:02:43,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123247549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:02:43,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:02:43,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:02:43,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793631160] [2024-11-24 00:02:43,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:02:43,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:02:43,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:43,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:02:43,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:02:43,125 INFO L87 Difference]: Start difference. First operand 153 states and 207 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:43,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:43,390 INFO L93 Difference]: Finished difference Result 350 states and 473 transitions. [2024-11-24 00:02:43,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:02:43,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 67 [2024-11-24 00:02:43,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:43,392 INFO L225 Difference]: With dead ends: 350 [2024-11-24 00:02:43,392 INFO L226 Difference]: Without dead ends: 200 [2024-11-24 00:02:43,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:02:43,393 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 187 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:43,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 258 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:02:43,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-24 00:02:43,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 143. [2024-11-24 00:02:43,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 130 states have (on average 1.323076923076923) internal successors, (172), 130 states have internal predecessors, (172), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-24 00:02:43,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 192 transitions. [2024-11-24 00:02:43,405 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 192 transitions. Word has length 67 [2024-11-24 00:02:43,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:43,405 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 192 transitions. [2024-11-24 00:02:43,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:43,405 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 192 transitions. [2024-11-24 00:02:43,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-24 00:02:43,406 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:43,406 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:43,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:02:43,407 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:02:43,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:43,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1047048597, now seen corresponding path program 1 times [2024-11-24 00:02:43,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:43,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007224214] [2024-11-24 00:02:43,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:43,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:02:43,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1843675701] [2024-11-24 00:02:43,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:43,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:43,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:43,505 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:43,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:02:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:02:43,962 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:02:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:02:44,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:02:44,236 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:02:44,238 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:02:44,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 00:02:44,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:44,444 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:44,517 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:02:44,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:02:44 BoogieIcfgContainer [2024-11-24 00:02:44,523 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:02:44,525 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:02:44,525 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:02:44,526 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:02:44,526 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:02:32" (3/4) ... [2024-11-24 00:02:44,529 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:02:44,530 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:02:44,532 INFO L158 Benchmark]: Toolchain (without parser) took 13485.37ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 92.4MB in the beginning and 67.2MB in the end (delta: 25.2MB). Peak memory consumption was 84.5MB. Max. memory is 16.1GB. [2024-11-24 00:02:44,533 INFO L158 Benchmark]: CDTParser took 1.57ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:02:44,534 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.20ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 77.8MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:02:44,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.73ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 75.0MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:02:44,534 INFO L158 Benchmark]: Boogie Preprocessor took 139.01ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 71.7MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:02:44,535 INFO L158 Benchmark]: RCFGBuilder took 894.69ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 47.8MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 00:02:44,535 INFO L158 Benchmark]: TraceAbstraction took 11868.02ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 47.1MB in the beginning and 67.3MB in the end (delta: -20.2MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2024-11-24 00:02:44,535 INFO L158 Benchmark]: Witness Printer took 5.29ms. Allocated memory is still 176.2MB. Free memory was 67.3MB in the beginning and 67.2MB in the end (delta: 33.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:02:44,540 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.57ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.20ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 77.8MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.73ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 75.0MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 139.01ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 71.7MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 894.69ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 47.8MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 11868.02ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 47.1MB in the beginning and 67.3MB in the end (delta: -20.2MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. * Witness Printer took 5.29ms. Allocated memory is still 176.2MB. Free memory was 67.3MB in the beginning and 67.2MB in the end (delta: 33.1kB). There was no memory consumed. 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 shiftLeft at line 59, overapproximation of shiftLeft at line 95, overapproximation of someBinaryDOUBLEComparisonOperation at line 52, overapproximation of someBinaryDOUBLEComparisonOperation at line 86, overapproximation of someBinaryDOUBLEComparisonOperation at line 95, overapproximation of someBinaryDOUBLEComparisonOperation at line 86. Possible FailurePath: [L33] unsigned char isInitial = 0; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L45] unsigned char last_1_WrapperStruct0_var_1_1 = 10; [L46] double last_1_WrapperStruct0_var_1_10 = 9.2; [L47] signed short int last_1_WrapperStruct0_var_1_12 = 1; [L48] signed long int last_1_WrapperStruct0_var_1_14 = -16; VAL [WrapperStruct0={4:0}, isInitial=0, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L99] isInitial = 1 [L100] FCALL initially() [L102] CALL updateLastVariables() [L89] EXPR WrapperStruct0.var_1_1 [L89] last_1_WrapperStruct0_var_1_1 = WrapperStruct0.var_1_1 [L90] EXPR WrapperStruct0.var_1_10 [L90] last_1_WrapperStruct0_var_1_10 = WrapperStruct0.var_1_10 [L91] EXPR WrapperStruct0.var_1_12 [L91] last_1_WrapperStruct0_var_1_12 = WrapperStruct0.var_1_12 [L92] EXPR WrapperStruct0.var_1_14 [L92] last_1_WrapperStruct0_var_1_14 = WrapperStruct0.var_1_14 [L102] RET updateLastVariables() [L103] CALL updateVariables() [L79] WrapperStruct0.var_1_3 = __VERIFIER_nondet_uchar() [L80] EXPR WrapperStruct0.var_1_3 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L80] CALL assume_abort_if_not(WrapperStruct0.var_1_3 >= 0) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L80] RET assume_abort_if_not(WrapperStruct0.var_1_3 >= 0) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L81] EXPR WrapperStruct0.var_1_3 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L81] CALL assume_abort_if_not(WrapperStruct0.var_1_3 <= 254) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L81] RET assume_abort_if_not(WrapperStruct0.var_1_3 <= 254) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L82] WrapperStruct0.var_1_7 = __VERIFIER_nondet_uchar() [L83] EXPR WrapperStruct0.var_1_7 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L83] CALL assume_abort_if_not(WrapperStruct0.var_1_7 >= 0) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L83] RET assume_abort_if_not(WrapperStruct0.var_1_7 >= 0) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L84] EXPR WrapperStruct0.var_1_7 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L84] CALL assume_abort_if_not(WrapperStruct0.var_1_7 <= 1) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L84] RET assume_abort_if_not(WrapperStruct0.var_1_7 <= 1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L85] WrapperStruct0.var_1_11 = __VERIFIER_nondet_double() [L86] EXPR WrapperStruct0.var_1_11 [L86] EXPR WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L86] EXPR WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F [L86] EXPR WrapperStruct0.var_1_11 [L86] EXPR WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L86] EXPR (WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F) || (WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L86] EXPR (WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F) || (WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L86] CALL assume_abort_if_not((WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F) || (WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L86] RET assume_abort_if_not((WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F) || (WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L103] RET updateVariables() [L104] CALL step() [L52] unsigned char stepLocal_0 = last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10; VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10, stepLocal_0=0] [L53] COND FALSE !(((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || stepLocal_0) [L56] WrapperStruct0.var_1_12 = last_1_WrapperStruct0_var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L58] EXPR WrapperStruct0.var_1_12 [L58] WrapperStruct0.var_1_14 = WrapperStruct0.var_1_12 [L59] EXPR WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L59] EXPR 10 << WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L59] EXPR WrapperStruct0.var_1_3 [L59] EXPR WrapperStruct0.var_1_14 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L59] COND TRUE (10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14) [L60] EXPR WrapperStruct0.var_1_12 [L60] EXPR WrapperStruct0.var_1_14 [L60] WrapperStruct0.var_1_8 = (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14) [L62] WrapperStruct0.var_1_9 = 64 [L63] EXPR WrapperStruct0.var_1_11 [L63] WrapperStruct0.var_1_10 = WrapperStruct0.var_1_11 [L64] EXPR WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L64] COND TRUE WrapperStruct0.var_1_12 <= 16 [L65] EXPR WrapperStruct0.var_1_3 [L65] WrapperStruct0.var_1_1 = WrapperStruct0.var_1_3 [L104] RET step() [L105] CALL, EXPR property() [L95] EXPR WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR (WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) [L95] EXPR WrapperStruct0.var_1_1 [L95] EXPR WrapperStruct0.var_1_3 [L95] EXPR (WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1) [L95] EXPR WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR 10 << WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR WrapperStruct0.var_1_3 [L95] EXPR WrapperStruct0.var_1_14 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1 [L95] EXPR WrapperStruct0.var_1_8 [L95] EXPR WrapperStruct0.var_1_12 [L95] EXPR WrapperStruct0.var_1_14 [L95] EXPR ((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR (((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR (((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64)) [L95] EXPR WrapperStruct0.var_1_9 [L95] EXPR (((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11)) [L95] EXPR WrapperStruct0.var_1_10 [L95] EXPR WrapperStruct0.var_1_11 [L95] EXPR ((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR (((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? (WrapperStruct0.var_1_12 == ((signed short int) ((((((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? (((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : (WrapperStruct0.var_1_12 == ((signed short int) last_1_WrapperStruct0_var_1_12))) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR (((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? (WrapperStruct0.var_1_12 == ((signed short int) ((((((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? (((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : (WrapperStruct0.var_1_12 == ((signed short int) last_1_WrapperStruct0_var_1_12))) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? (WrapperStruct0.var_1_12 == ((signed short int) ((((((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? (((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : (WrapperStruct0.var_1_12 == ((signed short int) last_1_WrapperStruct0_var_1_12)))) && (WrapperStruct0.var_1_14 == ((signed long int) WrapperStruct0.var_1_12)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? (WrapperStruct0.var_1_12 == ((signed short int) ((((((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? (((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : (WrapperStruct0.var_1_12 == ((signed short int) last_1_WrapperStruct0_var_1_12)))) && (WrapperStruct0.var_1_14 == ((signed long int) WrapperStruct0.var_1_12)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95-L96] return ((((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? (WrapperStruct0.var_1_12 == ((signed short int) ((((((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? (((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : (WrapperStruct0.var_1_12 == ((signed short int) last_1_WrapperStruct0_var_1_12)))) && (WrapperStruct0.var_1_14 == ((signed long int) WrapperStruct0.var_1_12)) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L19] reach_error() VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.7s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 672 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 671 mSDsluCounter, 2067 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1412 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 736 IncrementalHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 655 mSDtfsCounter, 736 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 391 GetRequests, 332 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=153occurred in iteration=6, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 199 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 958 NumberOfCodeBlocks, 958 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 809 ConstructedInterpolants, 0 QuantifiedInterpolants, 1938 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1301 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 464/520 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 [2024-11-24 00:02:44,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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_434c4403-0b58-47e3-ac68-f9cc517336cb/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 68b0cda5422c6df9a05dd00f43cb56ae62ac5ef3a6cb82099875e56a3f490744 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:02:47,864 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:02:48,028 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:02:48,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:02:48,040 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:02:48,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:02:48,091 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:02:48,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:02:48,092 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:02:48,092 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:02:48,094 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:02:48,094 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:02:48,094 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:02:48,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:02:48,095 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:02:48,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:02:48,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:02:48,095 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:02:48,095 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:02:48,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:02:48,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:02:48,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:02:48,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:02:48,096 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:02:48,096 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:02:48,096 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:02:48,096 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:02:48,096 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:02:48,096 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:02:48,096 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:02:48,096 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:02:48,096 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:02:48,096 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:02:48,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:02:48,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:02:48,097 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:02:48,097 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:02:48,097 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:02:48,097 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:02:48,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:02:48,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:02:48,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:02:48,097 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:02:48,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:02:48,098 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:02:48,099 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:02:48,099 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:02:48,099 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:02:48,099 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:02:48,099 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:02:48,099 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_434c4403-0b58-47e3-ac68-f9cc517336cb/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 -> 68b0cda5422c6df9a05dd00f43cb56ae62ac5ef3a6cb82099875e56a3f490744 [2024-11-24 00:02:48,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:02:48,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:02:48,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:02:48,555 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:02:48,556 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:02:48,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i [2024-11-24 00:02:51,996 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/data/05a4ab484/535cf76aa155462ca969d207a29ddee0/FLAG3d9265d5c [2024-11-24 00:02:52,399 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:02:52,401 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i [2024-11-24 00:02:52,415 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/data/05a4ab484/535cf76aa155462ca969d207a29ddee0/FLAG3d9265d5c [2024-11-24 00:02:52,445 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/data/05a4ab484/535cf76aa155462ca969d207a29ddee0 [2024-11-24 00:02:52,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:02:52,453 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:02:52,456 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:02:52,456 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:02:52,464 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:02:52,467 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:02:52" (1/1) ... [2024-11-24 00:02:52,469 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3669d244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:52, skipping insertion in model container [2024-11-24 00:02:52,469 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:02:52" (1/1) ... [2024-11-24 00:02:52,498 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:02:52,744 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_434c4403-0b58-47e3-ac68-f9cc517336cb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i[915,928] [2024-11-24 00:02:52,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:02:52,877 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:02:52,895 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_434c4403-0b58-47e3-ac68-f9cc517336cb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i[915,928] [2024-11-24 00:02:52,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:02:52,987 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:02:52,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:52 WrapperNode [2024-11-24 00:02:52,988 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:02:52,989 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:02:52,990 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:02:52,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:02:52,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:52" (1/1) ... [2024-11-24 00:02:53,026 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:52" (1/1) ... [2024-11-24 00:02:53,071 INFO L138 Inliner]: procedures = 36, calls = 103, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 327 [2024-11-24 00:02:53,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:02:53,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:02:53,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:02:53,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:02:53,087 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:52" (1/1) ... [2024-11-24 00:02:53,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:52" (1/1) ... [2024-11-24 00:02:53,096 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:52" (1/1) ... [2024-11-24 00:02:53,126 INFO L175 MemorySlicer]: Split 86 memory accesses to 2 slices as follows [2, 84]. 98 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 9]. The 13 writes are split as follows [0, 13]. [2024-11-24 00:02:53,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:52" (1/1) ... [2024-11-24 00:02:53,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:52" (1/1) ... [2024-11-24 00:02:53,174 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:52" (1/1) ... [2024-11-24 00:02:53,178 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:52" (1/1) ... [2024-11-24 00:02:53,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:52" (1/1) ... [2024-11-24 00:02:53,191 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:52" (1/1) ... [2024-11-24 00:02:53,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:52" (1/1) ... [2024-11-24 00:02:53,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:02:53,208 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:02:53,209 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:02:53,209 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:02:53,211 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:52" (1/1) ... [2024-11-24 00:02:53,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:02:53,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:53,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:02:53,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:02:53,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:02:53,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-24 00:02:53,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-24 00:02:53,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-24 00:02:53,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-24 00:02:53,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-24 00:02:53,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-24 00:02:53,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-24 00:02:53,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-24 00:02:53,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:02:53,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-24 00:02:53,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-24 00:02:53,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-24 00:02:53,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-11-24 00:02:53,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-11-24 00:02:53,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-24 00:02:53,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-24 00:02:53,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-24 00:02:53,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-24 00:02:53,307 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:02:53,309 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:02:53,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:02:53,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:02:53,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-24 00:02:53,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-24 00:02:53,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-24 00:02:53,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-24 00:02:53,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-24 00:02:53,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-24 00:02:53,548 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:02:53,552 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:02:54,449 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-11-24 00:02:54,450 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:02:54,482 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:02:54,484 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:02:54,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:02:54 BoogieIcfgContainer [2024-11-24 00:02:54,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:02:54,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:02:54,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:02:54,507 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:02:54,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:02:52" (1/3) ... [2024-11-24 00:02:54,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@95981e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:02:54, skipping insertion in model container [2024-11-24 00:02:54,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:02:52" (2/3) ... [2024-11-24 00:02:54,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@95981e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:02:54, skipping insertion in model container [2024-11-24 00:02:54,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:02:54" (3/3) ... [2024-11-24 00:02:54,516 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-9.i [2024-11-24 00:02:54,549 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:02:54,551 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-9.i that has 2 procedures, 70 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:02:54,650 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:02:54,671 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;@551989ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:02:54,671 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:02:54,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 62 states have (on average 1.435483870967742) internal successors, (89), 63 states have internal predecessors, (89), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:02:54,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 00:02:54,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:54,696 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:54,697 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:02:54,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:54,703 INFO L85 PathProgramCache]: Analyzing trace with hash -562539789, now seen corresponding path program 1 times [2024-11-24 00:02:54,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:02:54,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302191703] [2024-11-24 00:02:54,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:54,720 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 [2024-11-24 00:02:54,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:02:54,724 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:02:54,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:02:55,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:55,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:02:55,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:55,244 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-24 00:02:55,245 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:02:55,248 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:02:55,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302191703] [2024-11-24 00:02:55,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1302191703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:02:55,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:02:55,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:02:55,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653873435] [2024-11-24 00:02:55,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:02:55,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:02:55,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:02:55,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:02:55,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:02:55,295 INFO L87 Difference]: Start difference. First operand has 70 states, 62 states have (on average 1.435483870967742) internal successors, (89), 63 states have internal predecessors, (89), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:55,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:55,336 INFO L93 Difference]: Finished difference Result 133 states and 197 transitions. [2024-11-24 00:02:55,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:02:55,339 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-11-24 00:02:55,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:55,349 INFO L225 Difference]: With dead ends: 133 [2024-11-24 00:02:55,349 INFO L226 Difference]: Without dead ends: 66 [2024-11-24 00:02:55,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:02:55,361 INFO L435 NwaCegarLoop]: 92 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, 92 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 [2024-11-24 00:02:55,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:02:55,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-24 00:02:55,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-24 00:02:55,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 59 states have internal predecessors, (82), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:02:55,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 92 transitions. [2024-11-24 00:02:55,433 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 92 transitions. Word has length 60 [2024-11-24 00:02:55,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:55,435 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 92 transitions. [2024-11-24 00:02:55,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:55,435 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 92 transitions. [2024-11-24 00:02:55,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 00:02:55,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:55,439 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:55,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:02:55,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:02:55,645 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:02:55,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:55,647 INFO L85 PathProgramCache]: Analyzing trace with hash -830046663, now seen corresponding path program 1 times [2024-11-24 00:02:55,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:02:55,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342719798] [2024-11-24 00:02:55,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:55,648 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 [2024-11-24 00:02:55,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:02:55,650 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:02:55,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:02:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:56,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:02:56,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:56,134 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:02:56,136 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:02:56,136 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:02:56,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342719798] [2024-11-24 00:02:56,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [342719798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:02:56,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:02:56,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:02:56,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966312769] [2024-11-24 00:02:56,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:02:56,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:02:56,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:02:56,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:02:56,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:02:56,140 INFO L87 Difference]: Start difference. First operand 66 states and 92 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:56,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:56,215 INFO L93 Difference]: Finished difference Result 132 states and 185 transitions. [2024-11-24 00:02:56,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:02:56,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-11-24 00:02:56,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:56,218 INFO L225 Difference]: With dead ends: 132 [2024-11-24 00:02:56,218 INFO L226 Difference]: Without dead ends: 69 [2024-11-24 00:02:56,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:02:56,222 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 1 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 256 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 [2024-11-24 00:02:56,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 256 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:02:56,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-24 00:02:56,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2024-11-24 00:02:56,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 61 states have internal predecessors, (84), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:02:56,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2024-11-24 00:02:56,241 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 60 [2024-11-24 00:02:56,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:56,243 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2024-11-24 00:02:56,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:56,244 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2024-11-24 00:02:56,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 00:02:56,245 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:56,246 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:56,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:02:56,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:02:56,451 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:02:56,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:56,452 INFO L85 PathProgramCache]: Analyzing trace with hash -128982085, now seen corresponding path program 1 times [2024-11-24 00:02:56,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:02:56,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682848608] [2024-11-24 00:02:56,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:56,454 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 [2024-11-24 00:02:56,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:02:56,457 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:02:56,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:02:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:56,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:02:56,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:56,841 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:02:56,843 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:02:56,843 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:02:56,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682848608] [2024-11-24 00:02:56,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1682848608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:02:56,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:02:56,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:02:56,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120089958] [2024-11-24 00:02:56,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:02:56,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:02:56,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:02:56,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:02:56,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:02:56,846 INFO L87 Difference]: Start difference. First operand 68 states and 94 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:56,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:56,950 INFO L93 Difference]: Finished difference Result 136 states and 189 transitions. [2024-11-24 00:02:56,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:02:56,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-11-24 00:02:56,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:56,952 INFO L225 Difference]: With dead ends: 136 [2024-11-24 00:02:56,952 INFO L226 Difference]: Without dead ends: 71 [2024-11-24 00:02:56,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:02:56,957 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 1 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:56,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 333 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:02:56,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-24 00:02:56,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2024-11-24 00:02:56,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 63 states have internal predecessors, (86), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:02:56,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2024-11-24 00:02:56,972 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 60 [2024-11-24 00:02:56,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:56,973 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2024-11-24 00:02:56,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:56,973 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2024-11-24 00:02:56,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 00:02:56,979 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:56,979 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:56,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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)] Forceful destruction successful, exit code 0 [2024-11-24 00:02:57,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:02:57,180 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:02:57,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:57,181 INFO L85 PathProgramCache]: Analyzing trace with hash 551076285, now seen corresponding path program 1 times [2024-11-24 00:02:57,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:02:57,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673274977] [2024-11-24 00:02:57,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:57,182 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 [2024-11-24 00:02:57,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:02:57,186 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:02:57,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:02:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:57,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:02:57,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:57,537 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:02:57,537 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:02:57,537 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:02:57,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673274977] [2024-11-24 00:02:57,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673274977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:02:57,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:02:57,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:02:57,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330386652] [2024-11-24 00:02:57,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:02:57,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:02:57,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:02:57,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:02:57,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:02:57,540 INFO L87 Difference]: Start difference. First operand 70 states and 96 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:57,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:57,664 INFO L93 Difference]: Finished difference Result 142 states and 196 transitions. [2024-11-24 00:02:57,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:02:57,665 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-11-24 00:02:57,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:57,668 INFO L225 Difference]: With dead ends: 142 [2024-11-24 00:02:57,669 INFO L226 Difference]: Without dead ends: 75 [2024-11-24 00:02:57,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:02:57,673 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 1 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:57,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 479 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:02:57,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-24 00:02:57,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2024-11-24 00:02:57,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 67 states have (on average 1.3432835820895523) internal successors, (90), 67 states have internal predecessors, (90), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:02:57,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 100 transitions. [2024-11-24 00:02:57,688 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 100 transitions. Word has length 60 [2024-11-24 00:02:57,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:57,688 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 100 transitions. [2024-11-24 00:02:57,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:02:57,688 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 100 transitions. [2024-11-24 00:02:57,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 00:02:57,693 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:57,693 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:57,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:02:57,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:02:57,897 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:02:57,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:57,898 INFO L85 PathProgramCache]: Analyzing trace with hash 552923327, now seen corresponding path program 1 times [2024-11-24 00:02:57,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:02:57,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183871562] [2024-11-24 00:02:57,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:57,900 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 [2024-11-24 00:02:57,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:02:57,906 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:02:57,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:02:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:58,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:02:58,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:58,338 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 8 treesize of output 1 [2024-11-24 00:02:58,347 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 [2024-11-24 00:02:58,358 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 30 treesize of output 1 [2024-11-24 00:02:58,369 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 [2024-11-24 00:02:58,384 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 [2024-11-24 00:02:58,409 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:02:58,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 31 treesize of output 34 [2024-11-24 00:02:58,478 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:02:58,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 47 [2024-11-24 00:03:02,117 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:02,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 68 [2024-11-24 00:03:02,325 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:02,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 97 treesize of output 43 [2024-11-24 00:03:02,381 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:03:02,381 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:03:02,382 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:03:02,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183871562] [2024-11-24 00:03:02,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183871562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:02,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:02,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:03:02,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329748734] [2024-11-24 00:03:02,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:02,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:03:02,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:03:02,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:03:02,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=27, Unknown=1, NotChecked=0, Total=42 [2024-11-24 00:03:02,385 INFO L87 Difference]: Start difference. First operand 74 states and 100 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:03:06,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:03:08,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:08,681 INFO L93 Difference]: Finished difference Result 216 states and 294 transitions. [2024-11-24 00:03:08,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:03:08,682 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-11-24 00:03:08,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:08,684 INFO L225 Difference]: With dead ends: 216 [2024-11-24 00:03:08,684 INFO L226 Difference]: Without dead ends: 145 [2024-11-24 00:03:08,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=26, Invalid=45, Unknown=1, NotChecked=0, Total=72 [2024-11-24 00:03:08,686 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 121 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:08,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 390 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 258 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2024-11-24 00:03:08,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-24 00:03:08,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 84. [2024-11-24 00:03:08,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 77 states have (on average 1.3636363636363635) internal successors, (105), 77 states have internal predecessors, (105), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:03:08,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 115 transitions. [2024-11-24 00:03:08,707 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 115 transitions. Word has length 60 [2024-11-24 00:03:08,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:08,708 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 115 transitions. [2024-11-24 00:03:08,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:03:08,708 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 115 transitions. [2024-11-24 00:03:08,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 00:03:08,709 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:08,709 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:08,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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)] Forceful destruction successful, exit code 0 [2024-11-24 00:03:08,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:03:08,912 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:08,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:08,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1136020415, now seen corresponding path program 1 times [2024-11-24 00:03:08,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:03:08,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1380519581] [2024-11-24 00:03:08,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:08,914 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 [2024-11-24 00:03:08,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:03:08,916 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:03:08,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:03:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:09,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 00:03:09,228 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:09,319 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 29 treesize of output 17 [2024-11-24 00:03:09,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 [2024-11-24 00:03:09,383 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 [2024-11-24 00:03:09,431 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 20 treesize of output 21 [2024-11-24 00:03:17,758 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:17,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 37 treesize of output 39 [2024-11-24 00:03:25,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 53 [2024-11-24 00:03:26,311 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:26,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 111 treesize of output 97 [2024-11-24 00:03:26,595 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:26,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 121 treesize of output 114 [2024-11-24 00:03:27,045 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:27,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 161 treesize of output 71 [2024-11-24 00:03:27,161 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 00:03:27,161 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:03:27,161 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:03:27,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1380519581] [2024-11-24 00:03:27,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1380519581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:27,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:27,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:03:27,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194496919] [2024-11-24 00:03:27,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:27,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:03:27,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:03:27,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:03:27,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=114, Unknown=4, NotChecked=0, Total=156 [2024-11-24 00:03:27,167 INFO L87 Difference]: Start difference. First operand 84 states and 115 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:03:30,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:30,722 INFO L93 Difference]: Finished difference Result 343 states and 470 transitions. [2024-11-24 00:03:30,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:03:30,724 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2024-11-24 00:03:30,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:30,726 INFO L225 Difference]: With dead ends: 343 [2024-11-24 00:03:30,726 INFO L226 Difference]: Without dead ends: 262 [2024-11-24 00:03:30,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=117, Invalid=259, Unknown=4, NotChecked=0, Total=380 [2024-11-24 00:03:30,731 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 571 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:30,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 406 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-24 00:03:30,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-24 00:03:30,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 153. [2024-11-24 00:03:30,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 140 states have (on average 1.3571428571428572) internal successors, (190), 140 states have internal predecessors, (190), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-24 00:03:30,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 210 transitions. [2024-11-24 00:03:30,776 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 210 transitions. Word has length 60 [2024-11-24 00:03:30,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:30,776 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 210 transitions. [2024-11-24 00:03:30,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:03:30,777 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 210 transitions. [2024-11-24 00:03:30,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:03:30,782 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:30,782 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:30,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:03:30,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:03:30,983 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:30,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:30,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1489190506, now seen corresponding path program 1 times [2024-11-24 00:03:30,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:03:30,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258436430] [2024-11-24 00:03:30,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:30,985 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 [2024-11-24 00:03:30,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:03:30,988 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:03:30,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:03:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:31,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-24 00:03:31,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:31,483 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 8 treesize of output 1 [2024-11-24 00:03:32,001 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:32,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 132 treesize of output 59 [2024-11-24 00:03:32,026 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:32,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 132 treesize of output 59 [2024-11-24 00:03:32,056 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:32,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 144 treesize of output 92 [2024-11-24 00:03:32,176 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:32,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 223 treesize of output 146 [2024-11-24 00:03:32,399 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:32,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 242 treesize of output 155 [2024-11-24 00:03:33,222 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:33,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 432 treesize of output 144 [2024-11-24 00:03:33,365 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 00:03:33,365 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:03:33,853 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:03:33,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258436430] [2024-11-24 00:03:33,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258436430] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:03:33,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1787068409] [2024-11-24 00:03:33,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:33,854 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:03:33,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:03:33,859 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:03:33,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-24 00:03:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:35,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-24 00:03:35,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:35,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-24 00:03:36,672 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:36,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 63 [2024-11-24 00:03:36,796 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:36,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 63 [2024-11-24 00:03:36,954 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:36,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 130 treesize of output 90 [2024-11-24 00:03:37,197 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:37,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 194 treesize of output 130 [2024-11-24 00:03:37,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:37,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 202 treesize of output 136 [2024-11-24 00:03:38,711 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:38,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 344 treesize of output 148 [2024-11-24 00:03:38,751 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 00:03:38,752 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:03:39,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1787068409] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:03:39,014 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:03:39,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2024-11-24 00:03:39,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421876363] [2024-11-24 00:03:39,014 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:03:39,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:03:39,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:03:39,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:03:39,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:03:39,016 INFO L87 Difference]: Start difference. First operand 153 states and 210 transitions. Second operand has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 17 states have internal predecessors, (78), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-24 00:03:49,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:49,258 INFO L93 Difference]: Finished difference Result 555 states and 756 transitions. [2024-11-24 00:03:49,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:03:49,261 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 17 states have internal predecessors, (78), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 62 [2024-11-24 00:03:49,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:49,264 INFO L225 Difference]: With dead ends: 555 [2024-11-24 00:03:49,264 INFO L226 Difference]: Without dead ends: 405 [2024-11-24 00:03:49,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 152 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=156, Invalid=600, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:03:49,266 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 576 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:49,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 527 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2024-11-24 00:03:49,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-24 00:03:49,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 397. [2024-11-24 00:03:49,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 362 states have (on average 1.339779005524862) internal successors, (485), 366 states have internal predecessors, (485), 28 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 24 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-24 00:03:49,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 541 transitions. [2024-11-24 00:03:49,328 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 541 transitions. Word has length 62 [2024-11-24 00:03:49,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:49,329 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 541 transitions. [2024-11-24 00:03:49,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 17 states have internal predecessors, (78), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-24 00:03:49,329 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 541 transitions. [2024-11-24 00:03:49,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:03:49,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:49,332 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:49,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-24 00:03:49,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:03:49,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:03:49,733 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:49,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:49,733 INFO L85 PathProgramCache]: Analyzing trace with hash -809132136, now seen corresponding path program 1 times [2024-11-24 00:03:49,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:03:49,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795512321] [2024-11-24 00:03:49,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:49,734 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 [2024-11-24 00:03:49,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:03:49,739 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:03:49,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:03:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:50,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 00:03:50,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:50,033 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 36 treesize of output 10 [2024-11-24 00:03:50,051 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 26 treesize of output 14 [2024-11-24 00:03:50,098 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 40 treesize of output 22 [2024-11-24 00:03:50,116 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:03:50,116 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:03:50,116 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:03:50,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795512321] [2024-11-24 00:03:50,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795512321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:50,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:50,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:03:50,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966167538] [2024-11-24 00:03:50,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:50,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:03:50,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:03:50,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:03:50,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:03:50,118 INFO L87 Difference]: Start difference. First operand 397 states and 541 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:03:50,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:50,693 INFO L93 Difference]: Finished difference Result 843 states and 1147 transitions. [2024-11-24 00:03:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:03:50,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-11-24 00:03:50,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:50,700 INFO L225 Difference]: With dead ends: 843 [2024-11-24 00:03:50,700 INFO L226 Difference]: Without dead ends: 449 [2024-11-24 00:03:50,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:03:50,702 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 71 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:50,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 274 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:03:50,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-24 00:03:50,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 424. [2024-11-24 00:03:50,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 381 states have (on average 1.3175853018372703) internal successors, (502), 387 states have internal predecessors, (502), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 28 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-24 00:03:50,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 570 transitions. [2024-11-24 00:03:50,768 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 570 transitions. Word has length 62 [2024-11-24 00:03:50,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:50,769 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 570 transitions. [2024-11-24 00:03:50,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:03:50,769 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 570 transitions. [2024-11-24 00:03:50,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:03:50,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:50,775 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:50,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:03:50,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:03:50,976 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:50,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:50,976 INFO L85 PathProgramCache]: Analyzing trace with hash -108067558, now seen corresponding path program 1 times [2024-11-24 00:03:50,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:03:50,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054424568] [2024-11-24 00:03:50,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:50,977 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 [2024-11-24 00:03:50,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:03:50,979 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:03:50,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:03:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:51,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 00:03:51,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:51,309 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 21 treesize of output 9 [2024-11-24 00:03:51,409 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 16 treesize of output 12 [2024-11-24 00:03:51,425 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 32 treesize of output 25 [2024-11-24 00:03:51,475 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:51,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 59 treesize of output 43 [2024-11-24 00:03:51,568 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:51,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 78 [2024-11-24 00:03:51,728 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:51,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 84 treesize of output 87 [2024-11-24 00:03:52,002 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:52,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 137 treesize of output 65 [2024-11-24 00:03:52,071 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:03:52,071 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:03:52,071 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:03:52,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054424568] [2024-11-24 00:03:52,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2054424568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:52,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:52,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:03:52,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047715124] [2024-11-24 00:03:52,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:52,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:03:52,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:03:52,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:03:52,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:03:52,073 INFO L87 Difference]: Start difference. First operand 424 states and 570 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:03:54,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:54,965 INFO L93 Difference]: Finished difference Result 1149 states and 1548 transitions. [2024-11-24 00:03:54,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 00:03:54,966 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-11-24 00:03:54,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:54,972 INFO L225 Difference]: With dead ends: 1149 [2024-11-24 00:03:54,972 INFO L226 Difference]: Without dead ends: 755 [2024-11-24 00:03:54,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=132, Invalid=374, Unknown=0, NotChecked=0, Total=506 [2024-11-24 00:03:54,975 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 360 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:54,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 589 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 00:03:54,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-11-24 00:03:55,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 573. [2024-11-24 00:03:55,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 518 states have (on average 1.305019305019305) internal successors, (676), 525 states have internal predecessors, (676), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 37 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-24 00:03:55,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 764 transitions. [2024-11-24 00:03:55,078 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 764 transitions. Word has length 62 [2024-11-24 00:03:55,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:55,078 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 764 transitions. [2024-11-24 00:03:55,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:03:55,079 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 764 transitions. [2024-11-24 00:03:55,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:03:55,081 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:55,081 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:55,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:03:55,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:03:55,282 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:03:55,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:55,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1066488680, now seen corresponding path program 1 times [2024-11-24 00:03:55,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:03:55,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229905628] [2024-11-24 00:03:55,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:55,283 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 [2024-11-24 00:03:55,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:03:55,285 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:03:55,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:03:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:55,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 00:03:55,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:55,669 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:55,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 45 treesize of output 41 [2024-11-24 00:03:55,966 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:55,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 54 [2024-11-24 00:03:56,397 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:03:56,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 73 [2024-11-24 00:04:00,939 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:00,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 77 treesize of output 82 [2024-11-24 00:04:05,049 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:05,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 84 treesize of output 92 [2024-11-24 00:04:05,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 45 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 108 [2024-11-24 00:04:05,515 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:05,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 113 treesize of output 116 [2024-11-24 00:04:05,932 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:05,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 155 treesize of output 71 [2024-11-24 00:04:06,051 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:04:06,053 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:06,054 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:06,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229905628] [2024-11-24 00:04:06,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229905628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:06,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:06,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 00:04:06,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829995476] [2024-11-24 00:04:06,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:06,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:04:06,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:04:06,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:04:06,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=134, Unknown=2, NotChecked=0, Total=182 [2024-11-24 00:04:06,056 INFO L87 Difference]: Start difference. First operand 573 states and 764 transitions. Second operand has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 00:04:09,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:09,058 INFO L93 Difference]: Finished difference Result 1130 states and 1505 transitions. [2024-11-24 00:04:09,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:04:09,060 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 62 [2024-11-24 00:04:09,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:09,064 INFO L225 Difference]: With dead ends: 1130 [2024-11-24 00:04:09,064 INFO L226 Difference]: Without dead ends: 587 [2024-11-24 00:04:09,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=118, Invalid=260, Unknown=2, NotChecked=0, Total=380 [2024-11-24 00:04:09,066 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 405 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:09,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 496 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 00:04:09,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-11-24 00:04:09,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 561. [2024-11-24 00:04:09,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 506 states have (on average 1.2924901185770752) internal successors, (654), 513 states have internal predecessors, (654), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 37 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-24 00:04:09,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 742 transitions. [2024-11-24 00:04:09,169 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 742 transitions. Word has length 62 [2024-11-24 00:04:09,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:09,170 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 742 transitions. [2024-11-24 00:04:09,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 00:04:09,170 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 742 transitions. [2024-11-24 00:04:09,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:04:09,173 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:09,174 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:09,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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)] Ended with exit code 0 [2024-11-24 00:04:09,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:09,375 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:09,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:09,375 INFO L85 PathProgramCache]: Analyzing trace with hash 314634268, now seen corresponding path program 1 times [2024-11-24 00:04:09,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:09,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227196850] [2024-11-24 00:04:09,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:09,376 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 [2024-11-24 00:04:09,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:09,378 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:04:09,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:09,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-24 00:04:09,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:09,771 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 35 treesize of output 28 [2024-11-24 00:04:09,964 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:09,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 50 treesize of output 31 [2024-11-24 00:04:10,163 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:10,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 56 treesize of output 41 [2024-11-24 00:04:14,158 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:14,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 42 [2024-11-24 00:04:18,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 53 [2024-11-24 00:04:18,256 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:18,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 113 treesize of output 81 [2024-11-24 00:04:18,397 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:18,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 94 treesize of output 88 [2024-11-24 00:04:18,540 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:18,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 108 treesize of output 54 [2024-11-24 00:04:18,662 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 00:04:18,662 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:18,662 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:18,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1227196850] [2024-11-24 00:04:18,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1227196850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:18,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:18,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:04:18,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941619429] [2024-11-24 00:04:18,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:18,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:04:18,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:04:18,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:04:18,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=74, Unknown=2, NotChecked=0, Total=110 [2024-11-24 00:04:18,665 INFO L87 Difference]: Start difference. First operand 561 states and 742 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:04:22,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:22,344 INFO L93 Difference]: Finished difference Result 1144 states and 1513 transitions. [2024-11-24 00:04:22,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:04:22,346 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-11-24 00:04:22,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:22,349 INFO L225 Difference]: With dead ends: 1144 [2024-11-24 00:04:22,349 INFO L226 Difference]: Without dead ends: 613 [2024-11-24 00:04:22,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=72, Invalid=136, Unknown=2, NotChecked=0, Total=210 [2024-11-24 00:04:22,351 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 368 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:22,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 342 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-24 00:04:22,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2024-11-24 00:04:22,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 578. [2024-11-24 00:04:22,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 523 states have (on average 1.2944550669216062) internal successors, (677), 530 states have internal predecessors, (677), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 37 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-24 00:04:22,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 765 transitions. [2024-11-24 00:04:22,427 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 765 transitions. Word has length 62 [2024-11-24 00:04:22,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:22,427 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 765 transitions. [2024-11-24 00:04:22,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:04:22,427 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 765 transitions. [2024-11-24 00:04:22,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:04:22,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:22,428 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:22,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:22,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:22,629 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:22,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:22,629 INFO L85 PathProgramCache]: Analyzing trace with hash -2077605930, now seen corresponding path program 1 times [2024-11-24 00:04:22,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:22,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736563652] [2024-11-24 00:04:22,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:22,630 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 [2024-11-24 00:04:22,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:22,635 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:04:22,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:22,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-24 00:04:23,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:23,082 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 8 treesize of output 1 [2024-11-24 00:04:23,544 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:23,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 132 treesize of output 59 [2024-11-24 00:04:23,569 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:23,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 132 treesize of output 59 [2024-11-24 00:04:23,608 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:23,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 196 treesize of output 110 [2024-11-24 00:04:23,753 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:23,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 215 treesize of output 119 [2024-11-24 00:04:24,236 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:24,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 405 treesize of output 135 [2024-11-24 00:04:24,359 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 00:04:24,359 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:04:24,706 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:24,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736563652] [2024-11-24 00:04:24,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [736563652] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:24,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [515172946] [2024-11-24 00:04:24,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:24,707 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:04:24,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:04:24,710 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:04:24,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-24 00:04:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:26,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-24 00:04:26,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:26,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-24 00:04:27,297 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:27,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 63 [2024-11-24 00:04:27,351 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:27,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 63 [2024-11-24 00:04:27,420 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:27,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 170 treesize of output 108 [2024-11-24 00:04:27,671 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:27,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 162 treesize of output 126 [2024-11-24 00:04:28,337 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:28,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 304 treesize of output 152 [2024-11-24 00:04:28,367 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 00:04:28,367 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:04:28,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [515172946] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:28,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:04:28,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2024-11-24 00:04:28,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257746433] [2024-11-24 00:04:28,598 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:04:28,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:04:28,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:04:28,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:04:28,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:04:28,600 INFO L87 Difference]: Start difference. First operand 578 states and 765 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 15 states have internal predecessors, (78), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-24 00:04:34,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:34,452 INFO L93 Difference]: Finished difference Result 1143 states and 1505 transitions. [2024-11-24 00:04:34,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:04:34,454 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 15 states have internal predecessors, (78), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 62 [2024-11-24 00:04:34,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:34,457 INFO L225 Difference]: With dead ends: 1143 [2024-11-24 00:04:34,457 INFO L226 Difference]: Without dead ends: 595 [2024-11-24 00:04:34,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 157 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:04:34,459 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 369 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:34,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 419 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-24 00:04:34,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-11-24 00:04:34,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 475. [2024-11-24 00:04:34,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 435 states have (on average 1.3057471264367817) internal successors, (568), 438 states have internal predecessors, (568), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 27 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-24 00:04:34,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 628 transitions. [2024-11-24 00:04:34,517 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 628 transitions. Word has length 62 [2024-11-24 00:04:34,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:34,518 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 628 transitions. [2024-11-24 00:04:34,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 15 states have internal predecessors, (78), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-24 00:04:34,518 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 628 transitions. [2024-11-24 00:04:34,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:04:34,519 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:34,519 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:34,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2024-11-24 00:04:34,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:34,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:34,920 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:34,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:34,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1992097180, now seen corresponding path program 1 times [2024-11-24 00:04:34,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:34,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470552207] [2024-11-24 00:04:34,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:34,921 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 [2024-11-24 00:04:34,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:34,923 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:04:34,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:35,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:04:35,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:35,186 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:35,186 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 37 treesize of output 17 [2024-11-24 00:04:35,411 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:04:35,412 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:35,412 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:35,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470552207] [2024-11-24 00:04:35,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470552207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:35,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:35,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:04:35,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661732237] [2024-11-24 00:04:35,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:35,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:04:35,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:04:35,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:04:35,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:04:35,413 INFO L87 Difference]: Start difference. First operand 475 states and 628 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:04:36,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:36,170 INFO L93 Difference]: Finished difference Result 1150 states and 1511 transitions. [2024-11-24 00:04:36,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:04:36,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-11-24 00:04:36,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:36,174 INFO L225 Difference]: With dead ends: 1150 [2024-11-24 00:04:36,174 INFO L226 Difference]: Without dead ends: 678 [2024-11-24 00:04:36,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:04:36,176 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 81 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:36,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 245 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:04:36,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2024-11-24 00:04:36,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 612. [2024-11-24 00:04:36,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 564 states have (on average 1.303191489361702) internal successors, (735), 567 states have internal predecessors, (735), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 00:04:36,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 807 transitions. [2024-11-24 00:04:36,281 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 807 transitions. Word has length 62 [2024-11-24 00:04:36,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:36,282 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 807 transitions. [2024-11-24 00:04:36,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:04:36,282 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 807 transitions. [2024-11-24 00:04:36,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:04:36,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:36,283 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:36,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:36,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:36,484 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:36,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:36,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1561577064, now seen corresponding path program 1 times [2024-11-24 00:04:36,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:36,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685893828] [2024-11-24 00:04:36,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:36,485 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 [2024-11-24 00:04:36,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:36,488 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:04:36,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:36,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:04:36,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:36,726 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 00:04:36,726 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:36,726 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:36,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685893828] [2024-11-24 00:04:36,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685893828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:36,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:36,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:04:36,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142355008] [2024-11-24 00:04:36,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:36,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:04:36,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:04:36,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:04:36,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:04:36,728 INFO L87 Difference]: Start difference. First operand 612 states and 807 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:04:36,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:36,897 INFO L93 Difference]: Finished difference Result 1144 states and 1510 transitions. [2024-11-24 00:04:36,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:04:36,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-11-24 00:04:36,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:36,900 INFO L225 Difference]: With dead ends: 1144 [2024-11-24 00:04:36,900 INFO L226 Difference]: Without dead ends: 612 [2024-11-24 00:04:36,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:04:36,903 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:36,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 262 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:04:36,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2024-11-24 00:04:37,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2024-11-24 00:04:37,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 564 states have (on average 1.2960992907801419) internal successors, (731), 567 states have internal predecessors, (731), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 00:04:37,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 803 transitions. [2024-11-24 00:04:37,010 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 803 transitions. Word has length 62 [2024-11-24 00:04:37,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:37,010 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 803 transitions. [2024-11-24 00:04:37,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:04:37,010 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 803 transitions. [2024-11-24 00:04:37,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-24 00:04:37,011 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:37,011 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:37,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:37,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:37,212 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:37,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:37,213 INFO L85 PathProgramCache]: Analyzing trace with hash 790882118, now seen corresponding path program 1 times [2024-11-24 00:04:37,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:37,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674262466] [2024-11-24 00:04:37,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:37,213 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 [2024-11-24 00:04:37,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:37,216 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:04:37,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:37,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-24 00:04:37,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:37,564 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 21 treesize of output 9 [2024-11-24 00:04:37,659 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 16 treesize of output 12 [2024-11-24 00:04:37,670 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 32 treesize of output 25 [2024-11-24 00:04:37,700 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:37,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 54 treesize of output 44 [2024-11-24 00:04:37,756 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:37,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 77 [2024-11-24 00:04:37,865 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:37,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 92 treesize of output 89 [2024-11-24 00:04:38,888 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:38,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 118 treesize of output 52 [2024-11-24 00:04:38,991 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:04:38,991 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:38,991 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:38,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674262466] [2024-11-24 00:04:38,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [674262466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:38,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:38,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:04:38,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187315945] [2024-11-24 00:04:38,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:38,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:04:38,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:04:38,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:04:38,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:04:38,993 INFO L87 Difference]: Start difference. First operand 612 states and 803 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:04:42,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:42,543 INFO L93 Difference]: Finished difference Result 758 states and 996 transitions. [2024-11-24 00:04:42,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 00:04:42,544 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2024-11-24 00:04:42,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:42,546 INFO L225 Difference]: With dead ends: 758 [2024-11-24 00:04:42,546 INFO L226 Difference]: Without dead ends: 756 [2024-11-24 00:04:42,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2024-11-24 00:04:42,548 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 409 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:42,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 518 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 00:04:42,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2024-11-24 00:04:42,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 624. [2024-11-24 00:04:42,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 576 states have (on average 1.2899305555555556) internal successors, (743), 579 states have internal predecessors, (743), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 00:04:42,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 815 transitions. [2024-11-24 00:04:42,642 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 815 transitions. Word has length 64 [2024-11-24 00:04:42,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:42,643 INFO L471 AbstractCegarLoop]: Abstraction has 624 states and 815 transitions. [2024-11-24 00:04:42,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:04:42,643 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 815 transitions. [2024-11-24 00:04:42,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-24 00:04:42,644 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:42,644 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:42,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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)] Ended with exit code 0 [2024-11-24 00:04:42,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:42,845 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:42,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:42,846 INFO L85 PathProgramCache]: Analyzing trace with hash 792729160, now seen corresponding path program 1 times [2024-11-24 00:04:42,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:42,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113151279] [2024-11-24 00:04:42,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:42,847 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 [2024-11-24 00:04:42,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:42,850 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:04:42,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:43,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-24 00:04:43,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:43,188 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 21 treesize of output 9 [2024-11-24 00:04:43,285 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 [2024-11-24 00:04:43,321 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 32 treesize of output 25 [2024-11-24 00:04:43,371 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:43,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 59 treesize of output 43 [2024-11-24 00:04:43,439 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:43,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 78 [2024-11-24 00:04:43,565 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:43,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 84 treesize of output 87 [2024-11-24 00:04:44,473 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:44,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 113 treesize of output 65 [2024-11-24 00:04:44,563 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:04:44,563 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:44,563 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:44,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113151279] [2024-11-24 00:04:44,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113151279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:44,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:44,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 00:04:44,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339390816] [2024-11-24 00:04:44,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:44,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:04:44,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:04:44,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:04:44,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:04:44,565 INFO L87 Difference]: Start difference. First operand 624 states and 815 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:04:47,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:47,937 INFO L93 Difference]: Finished difference Result 1252 states and 1641 transitions. [2024-11-24 00:04:47,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 00:04:47,938 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2024-11-24 00:04:47,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:47,941 INFO L225 Difference]: With dead ends: 1252 [2024-11-24 00:04:47,941 INFO L226 Difference]: Without dead ends: 768 [2024-11-24 00:04:47,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:04:47,943 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 412 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:47,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 591 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-24 00:04:47,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2024-11-24 00:04:48,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 636. [2024-11-24 00:04:48,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 588 states have (on average 1.284013605442177) internal successors, (755), 591 states have internal predecessors, (755), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 00:04:48,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 827 transitions. [2024-11-24 00:04:48,043 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 827 transitions. Word has length 64 [2024-11-24 00:04:48,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:48,043 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 827 transitions. [2024-11-24 00:04:48,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:04:48,043 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 827 transitions. [2024-11-24 00:04:48,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-24 00:04:48,044 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:48,045 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:48,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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)] Ended with exit code 0 [2024-11-24 00:04:48,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:48,245 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:48,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:48,246 INFO L85 PathProgramCache]: Analyzing trace with hash 198670215, now seen corresponding path program 1 times [2024-11-24 00:04:48,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:48,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300312583] [2024-11-24 00:04:48,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:48,246 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 [2024-11-24 00:04:48,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:48,248 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:04:48,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:48,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:04:48,501 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:48,509 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:48,510 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 103 treesize of output 31 [2024-11-24 00:04:48,536 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:04:48,536 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:48,536 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:48,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [300312583] [2024-11-24 00:04:48,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [300312583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:48,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:48,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:04:48,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633118976] [2024-11-24 00:04:48,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:48,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:04:48,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:04:48,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:04:48,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:48,538 INFO L87 Difference]: Start difference. First operand 636 states and 827 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:04:48,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:48,628 INFO L93 Difference]: Finished difference Result 1196 states and 1553 transitions. [2024-11-24 00:04:48,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:04:48,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2024-11-24 00:04:48,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:48,632 INFO L225 Difference]: With dead ends: 1196 [2024-11-24 00:04:48,632 INFO L226 Difference]: Without dead ends: 636 [2024-11-24 00:04:48,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:04:48,634 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:48,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:04:48,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-11-24 00:04:48,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 636. [2024-11-24 00:04:48,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 588 states have (on average 1.2636054421768708) internal successors, (743), 591 states have internal predecessors, (743), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 00:04:48,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 815 transitions. [2024-11-24 00:04:48,743 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 815 transitions. Word has length 64 [2024-11-24 00:04:48,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:48,744 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 815 transitions. [2024-11-24 00:04:48,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:04:48,744 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 815 transitions. [2024-11-24 00:04:48,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-24 00:04:48,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:48,748 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:48,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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)] Ended with exit code 0 [2024-11-24 00:04:48,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:48,948 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:48,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:48,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1795474491, now seen corresponding path program 1 times [2024-11-24 00:04:48,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:48,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475406421] [2024-11-24 00:04:48,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:48,949 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 [2024-11-24 00:04:48,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:48,951 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:04:48,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:49,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 00:04:49,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:49,249 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 8 treesize of output 1 [2024-11-24 00:04:49,263 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 27 treesize of output 15 [2024-11-24 00:04:49,279 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 22 treesize of output 10 [2024-11-24 00:04:49,302 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:04:49,302 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:49,302 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:49,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475406421] [2024-11-24 00:04:49,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475406421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:49,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:49,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:04:49,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013542067] [2024-11-24 00:04:49,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:49,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:04:49,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:04:49,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:04:49,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:04:49,304 INFO L87 Difference]: Start difference. First operand 636 states and 815 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:04:50,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:50,622 INFO L93 Difference]: Finished difference Result 1420 states and 1809 transitions. [2024-11-24 00:04:50,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:04:50,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2024-11-24 00:04:50,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:50,625 INFO L225 Difference]: With dead ends: 1420 [2024-11-24 00:04:50,625 INFO L226 Difference]: Without dead ends: 856 [2024-11-24 00:04:50,626 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:04:50,627 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 63 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:50,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 233 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 00:04:50,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2024-11-24 00:04:50,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 610. [2024-11-24 00:04:50,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 562 states have (on average 1.2473309608540926) internal successors, (701), 565 states have internal predecessors, (701), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 00:04:50,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 773 transitions. [2024-11-24 00:04:50,728 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 773 transitions. Word has length 64 [2024-11-24 00:04:50,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:50,728 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 773 transitions. [2024-11-24 00:04:50,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:04:50,728 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 773 transitions. [2024-11-24 00:04:50,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-24 00:04:50,730 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:50,730 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:50,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:50,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:50,931 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:50,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:50,931 INFO L85 PathProgramCache]: Analyzing trace with hash 651977882, now seen corresponding path program 1 times [2024-11-24 00:04:50,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:50,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993259415] [2024-11-24 00:04:50,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:50,932 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 [2024-11-24 00:04:50,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:50,934 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:04:50,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:51,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:04:51,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:51,202 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:04:51,203 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:04:51,203 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:51,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993259415] [2024-11-24 00:04:51,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993259415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:04:51,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:04:51,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:04:51,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875892812] [2024-11-24 00:04:51,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:04:51,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:04:51,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:04:51,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:04:51,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:04:51,204 INFO L87 Difference]: Start difference. First operand 610 states and 773 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:04:51,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:51,439 INFO L93 Difference]: Finished difference Result 1163 states and 1476 transitions. [2024-11-24 00:04:51,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:04:51,440 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2024-11-24 00:04:51,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:51,455 INFO L225 Difference]: With dead ends: 1163 [2024-11-24 00:04:51,455 INFO L226 Difference]: Without dead ends: 624 [2024-11-24 00:04:51,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:04:51,457 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 1 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:51,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 395 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:04:51,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-11-24 00:04:51,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 610. [2024-11-24 00:04:51,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 562 states have (on average 1.2402135231316727) internal successors, (697), 565 states have internal predecessors, (697), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 00:04:51,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 769 transitions. [2024-11-24 00:04:51,605 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 769 transitions. Word has length 64 [2024-11-24 00:04:51,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:51,606 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 769 transitions. [2024-11-24 00:04:51,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:04:51,607 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 769 transitions. [2024-11-24 00:04:51,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-24 00:04:51,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:51,608 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:51,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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)] Ended with exit code 0 [2024-11-24 00:04:51,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:51,809 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:04:51,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:51,809 INFO L85 PathProgramCache]: Analyzing trace with hash 377218268, now seen corresponding path program 1 times [2024-11-24 00:04:51,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:04:51,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23555596] [2024-11-24 00:04:51,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:51,810 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 [2024-11-24 00:04:51,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:04:51,812 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:04:51,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:04:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:52,266 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 00:04:52,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:52,335 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 8 treesize of output 1 [2024-11-24 00:04:52,830 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:52,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 130 treesize of output 57 [2024-11-24 00:04:52,855 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:52,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 130 treesize of output 57 [2024-11-24 00:04:52,878 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:52,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 142 treesize of output 90 [2024-11-24 00:04:53,000 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:53,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 221 treesize of output 144 [2024-11-24 00:04:53,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:53,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 240 treesize of output 153 [2024-11-24 00:04:53,897 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:04:53,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 430 treesize of output 142 [2024-11-24 00:04:54,002 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 00:04:54,002 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:04:54,461 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:04:54,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [23555596] [2024-11-24 00:04:54,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [23555596] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:54,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1798001803] [2024-11-24 00:04:54,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:54,461 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:04:54,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:04:54,463 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:04:54,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2024-11-24 00:04:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:55,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-24 00:04:55,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:55,990 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 8 treesize of output 4 [2024-11-24 00:04:56,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-24 00:05:04,678 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:04,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 61 [2024-11-24 00:05:04,841 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:04,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 61 [2024-11-24 00:05:05,014 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:05,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 128 treesize of output 88 [2024-11-24 00:05:05,242 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:05,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 192 treesize of output 128 [2024-11-24 00:05:05,661 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:05,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 173 treesize of output 143 [2024-11-24 00:05:06,441 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:06,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 315 treesize of output 155 [2024-11-24 00:05:06,475 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 00:05:06,475 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:05:06,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1798001803] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:05:06,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:05:06,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 24 [2024-11-24 00:05:06,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397373929] [2024-11-24 00:05:06,720 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:05:06,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-24 00:05:06,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:05:06,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-24 00:05:06,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=620, Unknown=1, NotChecked=0, Total=756 [2024-11-24 00:05:06,722 INFO L87 Difference]: Start difference. First operand 610 states and 769 transitions. Second operand has 25 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 22 states have internal predecessors, (82), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-24 00:05:20,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:20,652 INFO L93 Difference]: Finished difference Result 1111 states and 1394 transitions. [2024-11-24 00:05:20,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 00:05:20,653 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 22 states have internal predecessors, (82), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 64 [2024-11-24 00:05:20,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:20,656 INFO L225 Difference]: With dead ends: 1111 [2024-11-24 00:05:20,656 INFO L226 Difference]: Without dead ends: 741 [2024-11-24 00:05:20,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 148 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=428, Invalid=1551, Unknown=1, NotChecked=0, Total=1980 [2024-11-24 00:05:20,657 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 429 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:05:20,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 819 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2024-11-24 00:05:20,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-11-24 00:05:20,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 466. [2024-11-24 00:05:20,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 429 states have (on average 1.2307692307692308) internal successors, (528), 429 states have internal predecessors, (528), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-24 00:05:20,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 576 transitions. [2024-11-24 00:05:20,741 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 576 transitions. Word has length 64 [2024-11-24 00:05:20,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:05:20,741 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 576 transitions. [2024-11-24 00:05:20,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 22 states have internal predecessors, (82), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-24 00:05:20,742 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 576 transitions. [2024-11-24 00:05:20,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-24 00:05:20,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:20,742 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:05:20,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2024-11-24 00:05:20,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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)] Ended with exit code 0 [2024-11-24 00:05:21,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:05:21,143 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:05:21,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:21,144 INFO L85 PathProgramCache]: Analyzing trace with hash -211197156, now seen corresponding path program 1 times [2024-11-24 00:05:21,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:05:21,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121711627] [2024-11-24 00:05:21,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:21,145 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 [2024-11-24 00:05:21,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:05:21,147 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:05:21,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:05:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:05:21,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-24 00:05:21,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:05:21,595 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 30 treesize of output 1 [2024-11-24 00:05:22,107 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:22,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 130 treesize of output 57 [2024-11-24 00:05:22,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:22,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 130 treesize of output 57 [2024-11-24 00:05:22,178 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:22,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 194 treesize of output 108 [2024-11-24 00:05:22,411 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:22,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 213 treesize of output 117 [2024-11-24 00:05:22,952 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:22,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 403 treesize of output 133 [2024-11-24 00:05:23,048 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 00:05:23,048 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:05:23,455 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:05:23,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121711627] [2024-11-24 00:05:23,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121711627] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:05:23,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1744608100] [2024-11-24 00:05:23,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:23,455 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:05:23,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:05:23,458 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:05:23,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-11-24 00:05:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:05:24,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-24 00:05:24,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:05:24,978 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 8 treesize of output 4 [2024-11-24 00:05:25,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-24 00:05:34,744 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:34,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 61 [2024-11-24 00:05:34,985 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:34,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 61 [2024-11-24 00:05:35,217 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:35,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 98 [2024-11-24 00:05:35,512 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:35,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 113 [2024-11-24 00:05:36,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:36,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 294 treesize of output 146 [2024-11-24 00:05:36,231 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 00:05:36,231 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:05:36,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1744608100] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:05:36,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:05:36,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 22 [2024-11-24 00:05:36,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993951939] [2024-11-24 00:05:36,469 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:05:36,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 00:05:36,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:05:36,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 00:05:36,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=532, Unknown=1, NotChecked=0, Total=650 [2024-11-24 00:05:36,471 INFO L87 Difference]: Start difference. First operand 466 states and 576 transitions. Second operand has 23 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 20 states have internal predecessors, (82), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-24 00:05:46,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:46,001 INFO L93 Difference]: Finished difference Result 1027 states and 1278 transitions. [2024-11-24 00:05:46,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 00:05:46,002 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 20 states have internal predecessors, (82), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 64 [2024-11-24 00:05:46,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:46,004 INFO L225 Difference]: With dead ends: 1027 [2024-11-24 00:05:46,004 INFO L226 Difference]: Without dead ends: 663 [2024-11-24 00:05:46,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 150 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=377, Invalid=1344, Unknown=1, NotChecked=0, Total=1722 [2024-11-24 00:05:46,005 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 343 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:05:46,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 570 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-11-24 00:05:46,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2024-11-24 00:05:46,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 337. [2024-11-24 00:05:46,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 308 states have (on average 1.224025974025974) internal successors, (377), 308 states have internal predecessors, (377), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:05:46,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 417 transitions. [2024-11-24 00:05:46,098 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 417 transitions. Word has length 64 [2024-11-24 00:05:46,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:05:46,098 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 417 transitions. [2024-11-24 00:05:46,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 20 states have internal predecessors, (82), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-24 00:05:46,099 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 417 transitions. [2024-11-24 00:05:46,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-24 00:05:46,100 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:46,100 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:05:46,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:05:46,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2024-11-24 00:05:46,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:05:46,501 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:05:46,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:46,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1679163442, now seen corresponding path program 1 times [2024-11-24 00:05:46,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:05:46,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103462344] [2024-11-24 00:05:46,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:46,502 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 [2024-11-24 00:05:46,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:05:46,504 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:05:46,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:05:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:05:46,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:05:46,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:05:46,847 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:46,847 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 103 treesize of output 31 [2024-11-24 00:05:46,879 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:05:46,880 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:05:46,880 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:05:46,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103462344] [2024-11-24 00:05:46,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103462344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:05:46,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:05:46,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:05:46,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833433028] [2024-11-24 00:05:46,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:05:46,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:05:46,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:05:46,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:05:46,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:05:46,881 INFO L87 Difference]: Start difference. First operand 337 states and 417 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:05:47,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:47,013 INFO L93 Difference]: Finished difference Result 559 states and 700 transitions. [2024-11-24 00:05:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:05:47,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 67 [2024-11-24 00:05:47,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:47,017 INFO L225 Difference]: With dead ends: 559 [2024-11-24 00:05:47,017 INFO L226 Difference]: Without dead ends: 337 [2024-11-24 00:05:47,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:05:47,019 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:05:47,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:05:47,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-24 00:05:47,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2024-11-24 00:05:47,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 308 states have (on average 1.2077922077922079) internal successors, (372), 308 states have internal predecessors, (372), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:05:47,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 412 transitions. [2024-11-24 00:05:47,107 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 412 transitions. Word has length 67 [2024-11-24 00:05:47,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:05:47,108 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 412 transitions. [2024-11-24 00:05:47,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:05:47,108 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 412 transitions. [2024-11-24 00:05:47,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-24 00:05:47,109 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:47,109 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:05:47,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:05:47,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:05:47,310 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:05:47,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:47,310 INFO L85 PathProgramCache]: Analyzing trace with hash 810365520, now seen corresponding path program 1 times [2024-11-24 00:05:47,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:05:47,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333701936] [2024-11-24 00:05:47,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:47,311 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 [2024-11-24 00:05:47,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:05:47,313 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:05:47,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:05:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:05:47,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 00:05:47,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:05:47,662 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 [2024-11-24 00:05:47,724 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 25 treesize of output 24 [2024-11-24 00:05:47,859 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:47,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 51 treesize of output 27 [2024-11-24 00:05:47,959 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:47,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 40 treesize of output 27 [2024-11-24 00:05:47,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:47,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 40 treesize of output 27 [2024-11-24 00:05:47,991 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:47,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 60 [2024-11-24 00:05:48,050 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:48,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 84 treesize of output 73 [2024-11-24 00:05:48,208 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:48,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 77 treesize of output 85 [2024-11-24 00:05:48,460 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:48,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 117 treesize of output 51 [2024-11-24 00:05:48,536 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:05:48,537 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:05:48,537 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:05:48,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333701936] [2024-11-24 00:05:48,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333701936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:05:48,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:05:48,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:05:48,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939348814] [2024-11-24 00:05:48,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:05:48,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:05:48,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:05:48,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:05:48,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:05:48,538 INFO L87 Difference]: Start difference. First operand 337 states and 412 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:05:50,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:50,787 INFO L93 Difference]: Finished difference Result 674 states and 827 transitions. [2024-11-24 00:05:50,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:05:50,788 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 67 [2024-11-24 00:05:50,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:50,791 INFO L225 Difference]: With dead ends: 674 [2024-11-24 00:05:50,791 INFO L226 Difference]: Without dead ends: 476 [2024-11-24 00:05:50,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:05:50,792 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 286 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:05:50,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 297 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-24 00:05:50,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-24 00:05:50,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 343. [2024-11-24 00:05:50,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 314 states have (on average 1.2070063694267517) internal successors, (379), 314 states have internal predecessors, (379), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:05:50,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 419 transitions. [2024-11-24 00:05:50,862 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 419 transitions. Word has length 67 [2024-11-24 00:05:50,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:05:50,862 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 419 transitions. [2024-11-24 00:05:50,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:05:50,863 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 419 transitions. [2024-11-24 00:05:50,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-24 00:05:50,864 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:50,864 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:05:50,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:05:51,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:05:51,065 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:05:51,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:51,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1400090603, now seen corresponding path program 1 times [2024-11-24 00:05:51,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:05:51,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613421192] [2024-11-24 00:05:51,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:51,066 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 [2024-11-24 00:05:51,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:05:51,068 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:05:51,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:05:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:05:51,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:05:51,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:05:51,391 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:51,391 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 103 treesize of output 31 [2024-11-24 00:05:51,422 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 00:05:51,422 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:05:51,422 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:05:51,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613421192] [2024-11-24 00:05:51,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613421192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:05:51,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:05:51,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:05:51,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13817413] [2024-11-24 00:05:51,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:05:51,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:05:51,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:05:51,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:05:51,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:05:51,424 INFO L87 Difference]: Start difference. First operand 343 states and 419 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:05:52,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:52,021 INFO L93 Difference]: Finished difference Result 546 states and 670 transitions. [2024-11-24 00:05:52,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:05:52,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2024-11-24 00:05:52,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:52,023 INFO L225 Difference]: With dead ends: 546 [2024-11-24 00:05:52,023 INFO L226 Difference]: Without dead ends: 329 [2024-11-24 00:05:52,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:05:52,024 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 1 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:05:52,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 206 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:05:52,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-24 00:05:52,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2024-11-24 00:05:52,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 300 states have (on average 1.18) internal successors, (354), 300 states have internal predecessors, (354), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:05:52,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 394 transitions. [2024-11-24 00:05:52,083 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 394 transitions. Word has length 69 [2024-11-24 00:05:52,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:05:52,083 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 394 transitions. [2024-11-24 00:05:52,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:05:52,084 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 394 transitions. [2024-11-24 00:05:52,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-24 00:05:52,085 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:52,085 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:05:52,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:05:52,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:05:52,286 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:05:52,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:52,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1767926430, now seen corresponding path program 1 times [2024-11-24 00:05:52,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:05:52,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41834961] [2024-11-24 00:05:52,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:52,287 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 [2024-11-24 00:05:52,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:05:52,289 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:05:52,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:05:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:05:52,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 00:05:52,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:05:52,688 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 21 treesize of output 9 [2024-11-24 00:05:55,191 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:05:55,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 40 [2024-11-24 00:05:57,105 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 135 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-24 00:05:57,106 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:06:02,057 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:06:02,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 100 treesize of output 1 [2024-11-24 00:06:02,080 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-24 00:06:02,081 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:06:02,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41834961] [2024-11-24 00:06:02,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41834961] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:06:02,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:06:02,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [16] total 30 [2024-11-24 00:06:02,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807450895] [2024-11-24 00:06:02,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:02,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:06:02,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:06:02,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:06:02,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=720, Unknown=0, NotChecked=0, Total=870 [2024-11-24 00:06:02,083 INFO L87 Difference]: Start difference. First operand 329 states and 394 transitions. Second operand has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 00:06:14,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:14,369 INFO L93 Difference]: Finished difference Result 842 states and 1005 transitions. [2024-11-24 00:06:14,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-24 00:06:14,370 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 123 [2024-11-24 00:06:14,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:14,373 INFO L225 Difference]: With dead ends: 842 [2024-11-24 00:06:14,373 INFO L226 Difference]: Without dead ends: 587 [2024-11-24 00:06:14,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 690 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=555, Invalid=2751, Unknown=0, NotChecked=0, Total=3306 [2024-11-24 00:06:14,376 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 402 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:14,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 545 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-24 00:06:14,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-11-24 00:06:14,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 429. [2024-11-24 00:06:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 386 states have (on average 1.1735751295336787) internal successors, (453), 386 states have internal predecessors, (453), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-24 00:06:14,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 513 transitions. [2024-11-24 00:06:14,510 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 513 transitions. Word has length 123 [2024-11-24 00:06:14,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:14,510 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 513 transitions. [2024-11-24 00:06:14,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 00:06:14,511 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 513 transitions. [2024-11-24 00:06:14,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-24 00:06:14,516 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:14,517 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:14,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:06:14,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:06:14,718 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:14,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:14,718 INFO L85 PathProgramCache]: Analyzing trace with hash -792936416, now seen corresponding path program 1 times [2024-11-24 00:06:14,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:06:14,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873605708] [2024-11-24 00:06:14,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:14,719 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 [2024-11-24 00:06:14,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:06:14,722 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:06:14,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:06:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:15,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-24 00:06:15,246 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:06:15,290 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 29 treesize of output 17 [2024-11-24 00:06:15,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 [2024-11-24 00:06:15,331 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 [2024-11-24 00:06:15,358 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 30 treesize of output 1 [2024-11-24 00:06:15,384 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 [2024-11-24 00:06:15,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 29 [2024-11-24 00:06:15,497 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:06:15,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 67 [2024-11-24 00:06:15,606 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:06:15,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 102 [2024-11-24 00:06:15,759 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:06:15,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 105 treesize of output 111 [2024-11-24 00:06:17,984 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:06:17,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 125 treesize of output 63 [2024-11-24 00:06:19,003 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 135 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-24 00:06:19,003 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:06:20,932 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-24 00:06:20,932 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:06:20,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873605708] [2024-11-24 00:06:20,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873605708] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:06:20,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:06:20,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [16] total 29 [2024-11-24 00:06:20,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16792356] [2024-11-24 00:06:20,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:20,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:06:20,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:06:20,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:06:20,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2024-11-24 00:06:20,935 INFO L87 Difference]: Start difference. First operand 429 states and 513 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 00:06:25,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:25,672 INFO L93 Difference]: Finished difference Result 883 states and 1055 transitions. [2024-11-24 00:06:25,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 00:06:25,674 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 123 [2024-11-24 00:06:25,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:25,676 INFO L225 Difference]: With dead ends: 883 [2024-11-24 00:06:25,676 INFO L226 Difference]: Without dead ends: 679 [2024-11-24 00:06:25,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 217 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=358, Invalid=1534, Unknown=0, NotChecked=0, Total=1892 [2024-11-24 00:06:25,677 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 418 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:25,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 443 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-24 00:06:25,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-11-24 00:06:25,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 430. [2024-11-24 00:06:25,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 387 states have (on average 1.1757105943152455) internal successors, (455), 387 states have internal predecessors, (455), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-24 00:06:25,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 515 transitions. [2024-11-24 00:06:25,772 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 515 transitions. Word has length 123 [2024-11-24 00:06:25,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:25,773 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 515 transitions. [2024-11-24 00:06:25,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 00:06:25,773 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 515 transitions. [2024-11-24 00:06:25,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-24 00:06:25,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:25,775 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:25,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:06:25,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:06:25,976 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:25,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:25,976 INFO L85 PathProgramCache]: Analyzing trace with hash 773821534, now seen corresponding path program 1 times [2024-11-24 00:06:25,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:06:25,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16615327] [2024-11-24 00:06:25,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:25,977 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 [2024-11-24 00:06:25,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:06:25,979 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:06:25,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:06:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:26,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 00:06:26,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:06:26,602 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 8 treesize of output 1 [2024-11-24 00:06:26,605 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 [2024-11-24 00:06:26,628 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:06:26,629 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 60 treesize of output 30 [2024-11-24 00:06:26,662 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-24 00:06:26,662 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:06:26,662 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:06:26,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16615327] [2024-11-24 00:06:26,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [16615327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:26,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:26,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:06:26,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016518286] [2024-11-24 00:06:26,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:26,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:06:26,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:06:26,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:06:26,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:06:26,664 INFO L87 Difference]: Start difference. First operand 430 states and 515 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:06:27,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:27,142 INFO L93 Difference]: Finished difference Result 644 states and 779 transitions. [2024-11-24 00:06:27,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:06:27,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 123 [2024-11-24 00:06:27,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:27,145 INFO L225 Difference]: With dead ends: 644 [2024-11-24 00:06:27,145 INFO L226 Difference]: Without dead ends: 436 [2024-11-24 00:06:27,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:06:27,146 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 39 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:27,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 225 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:06:27,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-24 00:06:27,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 430. [2024-11-24 00:06:27,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 387 states have (on average 1.1705426356589148) internal successors, (453), 387 states have internal predecessors, (453), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-24 00:06:27,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 513 transitions. [2024-11-24 00:06:27,245 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 513 transitions. Word has length 123 [2024-11-24 00:06:27,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:27,246 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 513 transitions. [2024-11-24 00:06:27,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 00:06:27,246 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 513 transitions. [2024-11-24 00:06:27,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-24 00:06:27,248 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:27,248 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:27,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:06:27,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:06:27,449 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:06:27,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:27,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1299010039, now seen corresponding path program 1 times [2024-11-24 00:06:27,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:06:27,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052349234] [2024-11-24 00:06:27,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:27,450 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 [2024-11-24 00:06:27,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:06:27,452 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:06:27,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:06:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:28,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-24 00:06:28,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:06:28,259 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 21 treesize of output 9 [2024-11-24 00:06:28,361 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 16 treesize of output 12 [2024-11-24 00:06:28,372 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 30 treesize of output 14 [2024-11-24 00:06:28,384 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 14 [2024-11-24 00:06:28,392 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 26 treesize of output 14 [2024-11-24 00:06:28,735 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 55 treesize of output 37 [2024-11-24 00:06:28,739 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:06:28,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 37 treesize of output 17 [2024-11-24 00:06:28,832 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 [2024-11-24 00:06:28,899 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 30 treesize of output 1 [2024-11-24 00:06:29,009 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 [2024-11-24 00:06:29,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2024-11-24 00:06:29,168 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:06:29,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 121 treesize of output 90 [2024-11-24 00:06:29,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 21 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 155 [2024-11-24 00:06:29,846 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 134 proven. 4 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-24 00:06:29,846 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:06:39,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 64 treesize of output 48 [2024-11-24 00:06:49,006 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-24 00:06:49,006 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:06:49,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2052349234] [2024-11-24 00:06:49,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2052349234] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:06:49,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:06:49,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [14] total 26 [2024-11-24 00:06:49,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723962050] [2024-11-24 00:06:49,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:49,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:06:49,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:06:49,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:06:49,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2024-11-24 00:06:49,008 INFO L87 Difference]: Start difference. First operand 430 states and 513 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 00:06:54,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:06:57,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:07:01,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:07:05,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.56s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:07:09,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:07:13,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.62s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:07:17,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:07:21,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:07:26,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:07:30,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:07:38,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.40s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:07:41,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:07:43,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:07:47,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.68s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:07:51,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.78s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:07:55,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:07:57,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:08:00,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:08:04,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:08:08,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:08:12,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:08:13,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:08:17,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.35s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:08:21,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:08:25,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:08:29,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:08:34,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:08:38,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:08:42,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:08:46,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:08:50,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:08:53,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:08:57,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:09:01,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:09:16,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:09:20,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:09:21,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:09:23,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:09:36,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:09:40,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:09:44,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.59s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:09:48,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:09:52,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.69s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:09:56,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:10:02,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:10:06,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:10:10,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:10:14,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:10:18,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:10:22,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.82s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:10:26,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:10:34,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:10:38,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:10:40,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:10:43,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:10:47,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:10:51,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:10:55,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:11:29,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:11:33,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:11:38,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-24 00:11:44,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:44,517 INFO L93 Difference]: Finished difference Result 1157 states and 1370 transitions. [2024-11-24 00:11:44,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-24 00:11:44,519 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 125 [2024-11-24 00:11:44,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:44,523 INFO L225 Difference]: With dead ends: 1157 [2024-11-24 00:11:44,523 INFO L226 Difference]: Without dead ends: 949 [2024-11-24 00:11:44,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 238 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 49.1s TimeCoverageRelationStatistics Valid=483, Invalid=2169, Unknown=0, NotChecked=0, Total=2652 [2024-11-24 00:11:44,525 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 621 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 89 mSolverCounterUnsat, 36 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 258.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 36 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 259.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:44,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 624 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 741 Invalid, 36 Unknown, 0 Unchecked, 259.4s Time] [2024-11-24 00:11:44,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-24 00:11:44,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 459. [2024-11-24 00:11:44,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 410 states have (on average 1.1634146341463414) internal successors, (477), 410 states have internal predecessors, (477), 30 states have call successors, (30), 18 states have call predecessors, (30), 18 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-24 00:11:44,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 537 transitions. [2024-11-24 00:11:44,666 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 537 transitions. Word has length 125 [2024-11-24 00:11:44,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:44,666 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 537 transitions. [2024-11-24 00:11:44,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 00:11:44,666 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 537 transitions. [2024-11-24 00:11:44,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-24 00:11:44,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:44,667 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:44,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:11:44,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:11:44,868 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:44,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:44,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1721711865, now seen corresponding path program 1 times [2024-11-24 00:11:44,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:11:44,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111138726] [2024-11-24 00:11:44,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:44,869 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 [2024-11-24 00:11:44,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:11:44,872 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:11:44,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:11:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:45,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-24 00:11:45,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:45,585 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 21 treesize of output 9 [2024-11-24 00:11:45,697 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 16 treesize of output 12 [2024-11-24 00:11:45,711 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 30 treesize of output 14 [2024-11-24 00:11:45,734 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 37 treesize of output 44 [2024-11-24 00:11:45,809 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:45,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 53 [2024-11-24 00:11:46,937 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 85 treesize of output 61 [2024-11-24 00:11:46,946 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:46,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 61 treesize of output 29 [2024-11-24 00:11:47,071 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 [2024-11-24 00:11:47,281 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 31 treesize of output 34 [2024-11-24 00:11:51,989 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:51,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 88 [2024-11-24 00:11:52,144 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:52,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 103 treesize of output 102 [2024-11-24 00:11:52,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 36 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 135 [2024-11-24 00:11:52,649 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:52,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 155 treesize of output 149 [2024-11-24 00:11:53,264 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:53,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 169 treesize of output 79 [2024-11-24 00:11:53,408 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 161 proven. 9 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-24 00:11:53,408 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:12:08,934 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:12:08,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111138726] [2024-11-24 00:12:08,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [111138726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:12:08,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1097024431] [2024-11-24 00:12:08,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:08,935 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:12:08,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:12:08,937 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:12:08,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2024-11-24 00:12:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:10,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-24 00:12:10,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:11,353 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:11,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 13 [2024-11-24 00:12:16,255 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:16,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 43 [2024-11-24 00:12:16,863 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:16,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 48 [2024-11-24 00:12:17,235 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:17,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 56 [2024-11-24 00:12:23,014 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:23,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 103 treesize of output 76 [2024-11-24 00:12:24,194 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:24,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 73 [2024-11-24 00:12:25,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 21 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 91 [2024-11-24 00:12:26,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:26,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 115 treesize of output 99 [2024-11-24 00:12:26,835 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:26,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 123 treesize of output 75 [2024-11-24 00:12:26,974 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 144 proven. 10 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-24 00:12:26,974 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:12:29,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1097024431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:12:29,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:12:29,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 37 [2024-11-24 00:12:29,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963919605] [2024-11-24 00:12:29,135 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:12:29,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-24 00:12:29,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:12:29,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-24 00:12:29,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1873, Unknown=2, NotChecked=0, Total=2070 [2024-11-24 00:12:29,137 INFO L87 Difference]: Start difference. First operand 459 states and 537 transitions. Second operand has 38 states, 38 states have (on average 4.131578947368421) internal successors, (157), 37 states have internal predecessors, (157), 7 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-24 00:12:39,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:12:47,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:12:51,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:12:55,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:12:59,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:03,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:07,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:11,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:16,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:20,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:24,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:36,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:40,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:44,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:48,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:52,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:56,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:14:00,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:14:04,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:14:08,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:14:12,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:14:16,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:14:20,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:14:24,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:14:28,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:14:32,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:14:36,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:10,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:23,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:32,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:41,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:55,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:59,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:16:08,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:08,159 INFO L93 Difference]: Finished difference Result 1313 states and 1552 transitions. [2024-11-24 00:16:08,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-24 00:16:08,161 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 4.131578947368421) internal successors, (157), 37 states have internal predecessors, (157), 7 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 125 [2024-11-24 00:16:08,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:08,166 INFO L225 Difference]: With dead ends: 1313 [2024-11-24 00:16:08,166 INFO L226 Difference]: Without dead ends: 1092 [2024-11-24 00:16:08,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 258 SyntacticMatches, 2 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2727 ImplicationChecksByTransitivity, 97.9s TimeCoverageRelationStatistics Valid=1403, Invalid=8683, Unknown=14, NotChecked=0, Total=10100 [2024-11-24 00:16:08,171 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 1028 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 3234 mSolverCounterSat, 205 mSolverCounterUnsat, 33 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 152.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 3472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 3234 IncrementalHoareTripleChecker+Invalid, 33 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 153.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:08,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 1701 Invalid, 3472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 3234 Invalid, 33 Unknown, 0 Unchecked, 153.4s Time] [2024-11-24 00:16:08,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2024-11-24 00:16:08,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 752. [2024-11-24 00:16:08,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 687 states have (on average 1.1848617176128093) internal successors, (814), 687 states have internal predecessors, (814), 40 states have call successors, (40), 24 states have call predecessors, (40), 24 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 00:16:08,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 894 transitions. [2024-11-24 00:16:08,446 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 894 transitions. Word has length 125 [2024-11-24 00:16:08,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:08,446 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 894 transitions. [2024-11-24 00:16:08,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 4.131578947368421) internal successors, (157), 37 states have internal predecessors, (157), 7 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-24 00:16:08,446 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 894 transitions. [2024-11-24 00:16:08,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-24 00:16:08,448 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:08,448 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:16:08,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (35)] Forceful destruction successful, exit code 0 [2024-11-24 00:16:08,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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)] Ended with exit code 0 [2024-11-24 00:16:08,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:16:08,849 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:08,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:08,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1164996533, now seen corresponding path program 1 times [2024-11-24 00:16:08,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:16:08,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652824712] [2024-11-24 00:16:08,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:08,850 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 [2024-11-24 00:16:08,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:16:08,852 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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) [2024-11-24 00:16:08,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/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 [2024-11-24 00:16:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:09,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-24 00:16:09,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:09,480 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 21 treesize of output 9 [2024-11-24 00:16:10,321 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 59 treesize of output 41 [2024-11-24 00:16:10,326 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:10,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 41 treesize of output 21 [2024-11-24 00:16:10,586 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 [2024-11-24 00:16:10,907 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 36 treesize of output 24 [2024-11-24 00:16:16,005 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:16,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 63 [2024-11-24 00:16:16,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2024-11-24 00:16:16,682 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:16,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 128 treesize of output 109 [2024-11-24 00:16:16,705 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 167 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-24 00:16:16,705 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:16:20,045 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:16:20,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652824712] [2024-11-24 00:16:20,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652824712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:16:20,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1080468536] [2024-11-24 00:16:20,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:20,046 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:16:20,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:16:20,048 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:16:20,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_434c4403-0b58-47e3-ac68-f9cc517336cb/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-11-24 00:16:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:22,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-24 00:16:22,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:22,230 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:22,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 13 [2024-11-24 00:16:28,846 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:28,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 103 treesize of output 65 [2024-11-24 00:16:29,993 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:29,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 92 treesize of output 73 [2024-11-24 00:16:35,042 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:35,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 92 [2024-11-24 00:16:42,119 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:42,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 129 treesize of output 111 [2024-11-24 00:16:42,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 108 [2024-11-24 00:16:43,148 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:43,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 153 treesize of output 134 [2024-11-24 00:16:43,178 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 167 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-24 00:16:43,178 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:17:13,800 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-11-24 00:17:13,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1080468536] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:17:13,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:17:13,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19, 23] total 47 [2024-11-24 00:17:13,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173995347] [2024-11-24 00:17:13,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:17:13,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:17:13,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:17:13,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:17:13,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=2517, Unknown=10, NotChecked=0, Total=2756 [2024-11-24 00:17:13,804 INFO L87 Difference]: Start difference. First operand 752 states and 894 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5)