./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fa328083b1d4aa3a21868494aa94d1f433f55ced0b8b3227cc831ea530b809d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:31:30,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:31:30,607 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:31:30,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:31:30,613 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:31:30,643 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:31:30,644 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:31:30,644 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:31:30,645 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:31:30,645 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:31:30,645 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:31:30,645 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:31:30,646 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:31:30,646 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:31:30,646 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:31:30,646 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:31:30,647 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:31:30,647 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:31:30,647 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:31:30,647 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:31:30,647 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:31:30,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:31:30,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:31:30,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:31:30,648 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:31:30,648 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:31:30,649 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:31:30,649 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:31:30,649 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:31:30,649 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:31:30,649 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:31:30,650 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:31:30,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:30,650 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:31:30,650 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:31:30,650 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:31:30,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:31:30,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:30,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:31:30,651 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:31:30,651 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:31:30,651 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:31:30,651 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:31:30,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:31:30,652 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:31:30,652 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:31:30,652 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:31:30,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:31:30,652 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_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fa328083b1d4aa3a21868494aa94d1f433f55ced0b8b3227cc831ea530b809d [2024-11-27 23:31:30,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:31:30,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:31:30,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:31:30,979 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:31:30,979 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:31:30,980 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i [2024-11-27 23:31:34,283 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/data/7c0b173a6/442cce44f8f346b08b16807ac3c47af8/FLAG4beb94808 [2024-11-27 23:31:34,734 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:31:34,736 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i [2024-11-27 23:31:34,750 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/data/7c0b173a6/442cce44f8f346b08b16807ac3c47af8/FLAG4beb94808 [2024-11-27 23:31:34,782 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/data/7c0b173a6/442cce44f8f346b08b16807ac3c47af8 [2024-11-27 23:31:34,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:31:34,789 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:31:34,792 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:31:34,793 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:31:34,798 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:31:34,799 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:34" (1/1) ... [2024-11-27 23:31:34,803 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc2ad6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:34, skipping insertion in model container [2024-11-27 23:31:34,804 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:34" (1/1) ... [2024-11-27 23:31:34,833 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:31:35,039 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_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i[916,929] [2024-11-27 23:31:35,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:31:35,184 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:31:35,198 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_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i[916,929] [2024-11-27 23:31:35,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:31:35,268 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:31:35,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:35 WrapperNode [2024-11-27 23:31:35,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:31:35,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:31:35,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:31:35,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:31:35,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:35" (1/1) ... [2024-11-27 23:31:35,303 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:35" (1/1) ... [2024-11-27 23:31:35,363 INFO L138 Inliner]: procedures = 30, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 423 [2024-11-27 23:31:35,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:31:35,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:31:35,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:31:35,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:31:35,376 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:35" (1/1) ... [2024-11-27 23:31:35,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:35" (1/1) ... [2024-11-27 23:31:35,383 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:35" (1/1) ... [2024-11-27 23:31:35,391 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-27 23:31:35,391 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:35" (1/1) ... [2024-11-27 23:31:35,392 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:35" (1/1) ... [2024-11-27 23:31:35,414 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:35" (1/1) ... [2024-11-27 23:31:35,416 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:35" (1/1) ... [2024-11-27 23:31:35,421 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:35" (1/1) ... [2024-11-27 23:31:35,424 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:35" (1/1) ... [2024-11-27 23:31:35,426 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:35" (1/1) ... [2024-11-27 23:31:35,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:31:35,433 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:31:35,433 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:31:35,433 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:31:35,434 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:35" (1/1) ... [2024-11-27 23:31:35,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:35,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:35,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:31:35,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:31:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:31:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-27 23:31:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-27 23:31:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-27 23:31:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 23:31:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-27 23:31:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 23:31:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:31:35,518 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:31:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 23:31:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:31:35,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:31:35,693 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:31:35,696 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:31:36,736 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-11-27 23:31:36,736 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:31:36,756 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:31:36,756 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:31:36,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:36 BoogieIcfgContainer [2024-11-27 23:31:36,757 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:31:36,763 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:31:36,763 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:31:36,770 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:31:36,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:31:34" (1/3) ... [2024-11-27 23:31:36,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bccc666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:36, skipping insertion in model container [2024-11-27 23:31:36,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:35" (2/3) ... [2024-11-27 23:31:36,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bccc666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:36, skipping insertion in model container [2024-11-27 23:31:36,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:36" (3/3) ... [2024-11-27 23:31:36,775 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-84.i [2024-11-27 23:31:36,799 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:31:36,802 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-84.i that has 2 procedures, 103 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:31:36,881 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:31:36,899 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;@43185ac4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:31:36,899 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:31:36,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 23:31:36,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:31:36,922 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:36,923 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:36,925 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:36,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:36,932 INFO L85 PathProgramCache]: Analyzing trace with hash 924800917, now seen corresponding path program 1 times [2024-11-27 23:31:36,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:36,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892099442] [2024-11-27 23:31:36,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:36,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:37,558 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-27 23:31:37,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:37,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892099442] [2024-11-27 23:31:37,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892099442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:37,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688060527] [2024-11-27 23:31:37,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:37,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:37,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:37,564 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:37,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:31:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:38,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:31:38,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:38,057 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-27 23:31:38,057 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:31:38,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688060527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:38,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:31:38,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:31:38,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890889588] [2024-11-27 23:31:38,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:38,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:31:38,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:38,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:31:38,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:31:38,104 INFO L87 Difference]: Start difference. First operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 23:31:38,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:38,148 INFO L93 Difference]: Finished difference Result 199 states and 310 transitions. [2024-11-27 23:31:38,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:31:38,150 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 150 [2024-11-27 23:31:38,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:38,160 INFO L225 Difference]: With dead ends: 199 [2024-11-27 23:31:38,161 INFO L226 Difference]: Without dead ends: 99 [2024-11-27 23:31:38,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:31:38,170 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:38,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:38,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-27 23:31:38,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-27 23:31:38,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.3116883116883118) internal successors, (101), 77 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 23:31:38,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2024-11-27 23:31:38,277 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 150 [2024-11-27 23:31:38,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:38,277 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2024-11-27 23:31:38,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 23:31:38,278 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2024-11-27 23:31:38,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:31:38,282 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:38,283 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:38,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:31:38,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:38,484 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:38,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:38,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1032707065, now seen corresponding path program 1 times [2024-11-27 23:31:38,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:38,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910102737] [2024-11-27 23:31:38,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:38,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:39,348 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:31:39,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:39,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910102737] [2024-11-27 23:31:39,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910102737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:39,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:39,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:31:39,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296472231] [2024-11-27 23:31:39,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:39,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:31:39,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:39,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:31:39,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:31:39,355 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:31:39,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:39,449 INFO L93 Difference]: Finished difference Result 198 states and 283 transitions. [2024-11-27 23:31:39,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:31:39,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-27 23:31:39,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:39,455 INFO L225 Difference]: With dead ends: 198 [2024-11-27 23:31:39,455 INFO L226 Difference]: Without dead ends: 102 [2024-11-27 23:31:39,456 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 [2024-11-27 23:31:39,457 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 405 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 [2024-11-27 23:31:39,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 405 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:39,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-27 23:31:39,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2024-11-27 23:31:39,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 79 states have (on average 1.3037974683544304) internal successors, (103), 79 states have internal predecessors, (103), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 23:31:39,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 143 transitions. [2024-11-27 23:31:39,493 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 143 transitions. Word has length 150 [2024-11-27 23:31:39,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:39,500 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 143 transitions. [2024-11-27 23:31:39,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:31:39,501 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 143 transitions. [2024-11-27 23:31:39,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:31:39,507 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:39,507 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:39,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:31:39,507 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:39,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:39,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1034554107, now seen corresponding path program 1 times [2024-11-27 23:31:39,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:39,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83466572] [2024-11-27 23:31:39,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:39,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:41,259 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:31:41,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:41,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83466572] [2024-11-27 23:31:41,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83466572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:41,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:41,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:31:41,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803346565] [2024-11-27 23:31:41,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:41,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:31:41,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:41,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:31:41,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:31:41,265 INFO L87 Difference]: Start difference. First operand 101 states and 143 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:31:42,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:42,302 INFO L93 Difference]: Finished difference Result 324 states and 459 transitions. [2024-11-27 23:31:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:31:42,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-27 23:31:42,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:42,306 INFO L225 Difference]: With dead ends: 324 [2024-11-27 23:31:42,306 INFO L226 Difference]: Without dead ends: 226 [2024-11-27 23:31:42,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:31:42,308 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 194 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:42,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 321 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:31:42,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-27 23:31:42,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 199. [2024-11-27 23:31:42,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 156 states have (on average 1.294871794871795) internal successors, (202), 156 states have internal predecessors, (202), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 23:31:42,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 282 transitions. [2024-11-27 23:31:42,347 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 282 transitions. Word has length 150 [2024-11-27 23:31:42,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:42,348 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 282 transitions. [2024-11-27 23:31:42,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:31:42,348 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 282 transitions. [2024-11-27 23:31:42,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-27 23:31:42,351 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:42,351 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:42,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:31:42,352 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:42,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:42,352 INFO L85 PathProgramCache]: Analyzing trace with hash 2120166937, now seen corresponding path program 1 times [2024-11-27 23:31:42,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:42,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551190292] [2024-11-27 23:31:42,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:42,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:48,598 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:31:48,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:48,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551190292] [2024-11-27 23:31:48,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551190292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:48,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:48,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-27 23:31:48,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357041706] [2024-11-27 23:31:48,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:48,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:31:48,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:48,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:31:48,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:31:48,602 INFO L87 Difference]: Start difference. First operand 199 states and 282 transitions. Second operand has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:31:52,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:52,763 INFO L93 Difference]: Finished difference Result 625 states and 877 transitions. [2024-11-27 23:31:52,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:31:52,764 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 158 [2024-11-27 23:31:52,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:52,772 INFO L225 Difference]: With dead ends: 625 [2024-11-27 23:31:52,772 INFO L226 Difference]: Without dead ends: 429 [2024-11-27 23:31:52,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:31:52,778 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 167 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:52,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1577 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-27 23:31:52,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-27 23:31:52,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 229. [2024-11-27 23:31:52,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 186 states have (on average 1.3064516129032258) internal successors, (243), 186 states have internal predecessors, (243), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 23:31:52,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 323 transitions. [2024-11-27 23:31:52,833 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 323 transitions. Word has length 158 [2024-11-27 23:31:52,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:52,834 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 323 transitions. [2024-11-27 23:31:52,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:31:52,834 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 323 transitions. [2024-11-27 23:31:52,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-27 23:31:52,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:52,838 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:52,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:31:52,838 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:52,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:52,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1752098533, now seen corresponding path program 1 times [2024-11-27 23:31:52,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:52,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902497264] [2024-11-27 23:31:52,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:52,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:57,225 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:31:57,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:57,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902497264] [2024-11-27 23:31:57,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902497264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:57,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:57,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-27 23:31:57,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828534907] [2024-11-27 23:31:57,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:57,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:31:57,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:57,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:31:57,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:31:57,229 INFO L87 Difference]: Start difference. First operand 229 states and 323 transitions. Second operand has 14 states, 12 states have (on average 5.083333333333333) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:31:59,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:59,124 INFO L93 Difference]: Finished difference Result 535 states and 753 transitions. [2024-11-27 23:31:59,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:31:59,125 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.083333333333333) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 158 [2024-11-27 23:31:59,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:59,130 INFO L225 Difference]: With dead ends: 535 [2024-11-27 23:31:59,130 INFO L226 Difference]: Without dead ends: 309 [2024-11-27 23:31:59,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:31:59,134 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 60 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:59,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 853 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 23:31:59,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-27 23:31:59,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 233. [2024-11-27 23:31:59,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 190 states have (on average 1.3105263157894738) internal successors, (249), 190 states have internal predecessors, (249), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 23:31:59,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 329 transitions. [2024-11-27 23:31:59,166 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 329 transitions. Word has length 158 [2024-11-27 23:31:59,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:59,167 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 329 transitions. [2024-11-27 23:31:59,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.083333333333333) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:31:59,167 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 329 transitions. [2024-11-27 23:31:59,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:31:59,170 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:59,170 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:59,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:31:59,170 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:59,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:59,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1171616002, now seen corresponding path program 1 times [2024-11-27 23:31:59,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:59,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146180709] [2024-11-27 23:31:59,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:59,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:02,177 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:32:02,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:02,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146180709] [2024-11-27 23:32:02,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146180709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:02,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:02,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:32:02,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457352460] [2024-11-27 23:32:02,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:02,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:32:02,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:02,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:32:02,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:32:02,183 INFO L87 Difference]: Start difference. First operand 233 states and 329 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:03,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:03,801 INFO L93 Difference]: Finished difference Result 577 states and 807 transitions. [2024-11-27 23:32:03,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:32:03,802 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-27 23:32:03,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:03,805 INFO L225 Difference]: With dead ends: 577 [2024-11-27 23:32:03,805 INFO L226 Difference]: Without dead ends: 347 [2024-11-27 23:32:03,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:32:03,807 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 55 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:03,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 793 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 23:32:03,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-27 23:32:03,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 343. [2024-11-27 23:32:03,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 294 states have (on average 1.3197278911564625) internal successors, (388), 296 states have internal predecessors, (388), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-27 23:32:03,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 476 transitions. [2024-11-27 23:32:03,841 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 476 transitions. Word has length 160 [2024-11-27 23:32:03,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:03,842 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 476 transitions. [2024-11-27 23:32:03,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:03,842 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 476 transitions. [2024-11-27 23:32:03,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:32:03,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:03,845 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:03,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:32:03,846 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:03,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:03,846 INFO L85 PathProgramCache]: Analyzing trace with hash 269132564, now seen corresponding path program 1 times [2024-11-27 23:32:03,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:03,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244992805] [2024-11-27 23:32:03,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:03,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:07,159 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:32:07,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:07,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244992805] [2024-11-27 23:32:07,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244992805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:07,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:07,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 23:32:07,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273594768] [2024-11-27 23:32:07,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:07,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:32:07,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:07,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:32:07,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:32:07,164 INFO L87 Difference]: Start difference. First operand 343 states and 476 transitions. Second operand has 10 states, 8 states have (on average 7.875) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:09,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:09,169 INFO L93 Difference]: Finished difference Result 1095 states and 1498 transitions. [2024-11-27 23:32:09,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:32:09,170 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.875) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-27 23:32:09,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:09,176 INFO L225 Difference]: With dead ends: 1095 [2024-11-27 23:32:09,177 INFO L226 Difference]: Without dead ends: 755 [2024-11-27 23:32:09,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:32:09,179 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 114 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:09,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 901 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 23:32:09,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-11-27 23:32:09,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 589. [2024-11-27 23:32:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 524 states have (on average 1.3187022900763359) internal successors, (691), 530 states have internal predecessors, (691), 56 states have call successors, (56), 8 states have call predecessors, (56), 8 states have return successors, (56), 50 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-27 23:32:09,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 803 transitions. [2024-11-27 23:32:09,247 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 803 transitions. Word has length 160 [2024-11-27 23:32:09,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:09,248 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 803 transitions. [2024-11-27 23:32:09,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.875) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:09,248 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 803 transitions. [2024-11-27 23:32:09,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:32:09,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:09,252 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:09,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:32:09,252 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:09,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:09,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1129206588, now seen corresponding path program 1 times [2024-11-27 23:32:09,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:09,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258715419] [2024-11-27 23:32:09,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:09,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:32:09,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:09,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258715419] [2024-11-27 23:32:09,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258715419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:09,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:09,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:32:09,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582659390] [2024-11-27 23:32:09,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:09,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:32:09,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:09,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:32:09,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:32:09,768 INFO L87 Difference]: Start difference. First operand 589 states and 803 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:32:10,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:10,414 INFO L93 Difference]: Finished difference Result 1495 states and 2011 transitions. [2024-11-27 23:32:10,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:32:10,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-27 23:32:10,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:10,424 INFO L225 Difference]: With dead ends: 1495 [2024-11-27 23:32:10,424 INFO L226 Difference]: Without dead ends: 909 [2024-11-27 23:32:10,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:10,427 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 46 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:10,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 432 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:32:10,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2024-11-27 23:32:10,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 597. [2024-11-27 23:32:10,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 532 states have (on average 1.3139097744360901) internal successors, (699), 538 states have internal predecessors, (699), 56 states have call successors, (56), 8 states have call predecessors, (56), 8 states have return successors, (56), 50 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-27 23:32:10,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 811 transitions. [2024-11-27 23:32:10,533 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 811 transitions. Word has length 160 [2024-11-27 23:32:10,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:10,535 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 811 transitions. [2024-11-27 23:32:10,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:32:10,539 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 811 transitions. [2024-11-27 23:32:10,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:32:10,546 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:10,547 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:10,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:32:10,547 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:10,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:10,548 INFO L85 PathProgramCache]: Analyzing trace with hash -150657090, now seen corresponding path program 1 times [2024-11-27 23:32:10,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:10,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38700616] [2024-11-27 23:32:10,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:10,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:13,159 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:32:13,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:13,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38700616] [2024-11-27 23:32:13,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38700616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:13,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:13,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:32:13,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395888579] [2024-11-27 23:32:13,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:13,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:32:13,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:13,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:32:13,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:32:13,163 INFO L87 Difference]: Start difference. First operand 597 states and 811 transitions. Second operand has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:14,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:14,684 INFO L93 Difference]: Finished difference Result 1537 states and 2071 transitions. [2024-11-27 23:32:14,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:32:14,686 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-27 23:32:14,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:14,694 INFO L225 Difference]: With dead ends: 1537 [2024-11-27 23:32:14,694 INFO L226 Difference]: Without dead ends: 943 [2024-11-27 23:32:14,696 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:32:14,697 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 53 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:14,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 570 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 23:32:14,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2024-11-27 23:32:14,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 655. [2024-11-27 23:32:14,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 590 states have (on average 1.3135593220338984) internal successors, (775), 596 states have internal predecessors, (775), 56 states have call successors, (56), 8 states have call predecessors, (56), 8 states have return successors, (56), 50 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-27 23:32:14,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 887 transitions. [2024-11-27 23:32:14,789 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 887 transitions. Word has length 160 [2024-11-27 23:32:14,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:14,790 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 887 transitions. [2024-11-27 23:32:14,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:14,791 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 887 transitions. [2024-11-27 23:32:14,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:32:14,794 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:14,794 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:14,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:32:14,795 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:14,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:14,796 INFO L85 PathProgramCache]: Analyzing trace with hash 409681174, now seen corresponding path program 1 times [2024-11-27 23:32:14,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:14,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634403668] [2024-11-27 23:32:14,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:14,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:16,149 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:32:16,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:16,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634403668] [2024-11-27 23:32:16,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634403668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:16,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:16,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:32:16,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592998876] [2024-11-27 23:32:16,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:16,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:32:16,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:16,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:32:16,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:16,152 INFO L87 Difference]: Start difference. First operand 655 states and 887 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 23:32:16,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:16,979 INFO L93 Difference]: Finished difference Result 1344 states and 1816 transitions. [2024-11-27 23:32:16,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:32:16,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2024-11-27 23:32:16,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:16,983 INFO L225 Difference]: With dead ends: 1344 [2024-11-27 23:32:16,983 INFO L226 Difference]: Without dead ends: 692 [2024-11-27 23:32:16,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:32:16,985 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 104 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:16,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 534 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:32:16,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-11-27 23:32:17,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 688. [2024-11-27 23:32:17,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 608 states have (on average 1.2976973684210527) internal successors, (789), 615 states have internal predecessors, (789), 68 states have call successors, (68), 11 states have call predecessors, (68), 11 states have return successors, (68), 61 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-27 23:32:17,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 925 transitions. [2024-11-27 23:32:17,049 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 925 transitions. Word has length 160 [2024-11-27 23:32:17,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:17,052 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 925 transitions. [2024-11-27 23:32:17,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 23:32:17,052 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 925 transitions. [2024-11-27 23:32:17,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:32:17,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:17,057 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:17,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:32:17,058 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:17,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:17,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1545951006, now seen corresponding path program 1 times [2024-11-27 23:32:17,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:17,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110247734] [2024-11-27 23:32:17,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:17,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:17,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:19,636 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:32:19,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:19,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110247734] [2024-11-27 23:32:19,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110247734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:19,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:19,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:32:19,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552863894] [2024-11-27 23:32:19,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:19,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:32:19,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:19,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:32:19,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:32:19,640 INFO L87 Difference]: Start difference. First operand 688 states and 925 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:21,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:21,721 INFO L93 Difference]: Finished difference Result 1506 states and 2014 transitions. [2024-11-27 23:32:21,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:32:21,722 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-27 23:32:21,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:21,728 INFO L225 Difference]: With dead ends: 1506 [2024-11-27 23:32:21,728 INFO L226 Difference]: Without dead ends: 834 [2024-11-27 23:32:21,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:32:21,732 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 53 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:21,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 947 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 23:32:21,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-11-27 23:32:21,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 688. [2024-11-27 23:32:21,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 608 states have (on average 1.2911184210526316) internal successors, (785), 615 states have internal predecessors, (785), 68 states have call successors, (68), 11 states have call predecessors, (68), 11 states have return successors, (68), 61 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-27 23:32:21,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 921 transitions. [2024-11-27 23:32:21,808 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 921 transitions. Word has length 160 [2024-11-27 23:32:21,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:21,809 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 921 transitions. [2024-11-27 23:32:21,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:21,810 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 921 transitions. [2024-11-27 23:32:21,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:32:21,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:21,813 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:21,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:32:21,817 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:21,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:21,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1148983748, now seen corresponding path program 1 times [2024-11-27 23:32:21,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:21,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595758422] [2024-11-27 23:32:21,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:21,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:23,941 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:32:23,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:23,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595758422] [2024-11-27 23:32:23,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595758422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:23,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:23,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:32:23,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172202518] [2024-11-27 23:32:23,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:23,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:32:23,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:23,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:32:23,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:32:23,944 INFO L87 Difference]: Start difference. First operand 688 states and 921 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:26,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:26,017 INFO L93 Difference]: Finished difference Result 1662 states and 2204 transitions. [2024-11-27 23:32:26,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:32:26,018 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-27 23:32:26,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:26,024 INFO L225 Difference]: With dead ends: 1662 [2024-11-27 23:32:26,024 INFO L226 Difference]: Without dead ends: 990 [2024-11-27 23:32:26,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:32:26,027 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 61 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:26,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1002 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 23:32:26,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2024-11-27 23:32:26,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 836. [2024-11-27 23:32:26,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 740 states have (on average 1.2743243243243243) internal successors, (943), 751 states have internal predecessors, (943), 80 states have call successors, (80), 15 states have call predecessors, (80), 15 states have return successors, (80), 69 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-27 23:32:26,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1103 transitions. [2024-11-27 23:32:26,115 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1103 transitions. Word has length 160 [2024-11-27 23:32:26,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:26,117 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1103 transitions. [2024-11-27 23:32:26,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:26,117 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1103 transitions. [2024-11-27 23:32:26,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:32:26,120 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:26,120 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:26,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:32:26,120 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:26,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:26,121 INFO L85 PathProgramCache]: Analyzing trace with hash -128024836, now seen corresponding path program 1 times [2024-11-27 23:32:26,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:26,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594216531] [2024-11-27 23:32:26,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:26,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:28,343 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:32:28,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:28,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594216531] [2024-11-27 23:32:28,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594216531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:28,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:28,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:32:28,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404797738] [2024-11-27 23:32:28,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:28,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:32:28,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:28,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:32:28,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:32:28,345 INFO L87 Difference]: Start difference. First operand 836 states and 1103 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:30,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:30,363 INFO L93 Difference]: Finished difference Result 1782 states and 2346 transitions. [2024-11-27 23:32:30,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:32:30,363 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-27 23:32:30,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:30,369 INFO L225 Difference]: With dead ends: 1782 [2024-11-27 23:32:30,369 INFO L226 Difference]: Without dead ends: 962 [2024-11-27 23:32:30,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:32:30,373 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 55 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:30,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 1124 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 23:32:30,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2024-11-27 23:32:30,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 818. [2024-11-27 23:32:30,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 722 states have (on average 1.2700831024930748) internal successors, (917), 733 states have internal predecessors, (917), 80 states have call successors, (80), 15 states have call predecessors, (80), 15 states have return successors, (80), 69 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-27 23:32:30,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1077 transitions. [2024-11-27 23:32:30,454 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1077 transitions. Word has length 160 [2024-11-27 23:32:30,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:30,454 INFO L471 AbstractCegarLoop]: Abstraction has 818 states and 1077 transitions. [2024-11-27 23:32:30,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:30,455 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1077 transitions. [2024-11-27 23:32:30,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:32:30,457 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:30,457 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:30,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:32:30,459 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:30,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:30,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1568583260, now seen corresponding path program 1 times [2024-11-27 23:32:30,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:30,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319675050] [2024-11-27 23:32:30,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:30,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:30,959 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:32:30,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:30,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319675050] [2024-11-27 23:32:30,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319675050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:30,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:30,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:32:30,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857848935] [2024-11-27 23:32:30,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:30,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:32:30,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:30,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:32:30,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:32:30,961 INFO L87 Difference]: Start difference. First operand 818 states and 1077 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:32:31,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:31,620 INFO L93 Difference]: Finished difference Result 1620 states and 2135 transitions. [2024-11-27 23:32:31,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:32:31,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-27 23:32:31,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:31,626 INFO L225 Difference]: With dead ends: 1620 [2024-11-27 23:32:31,626 INFO L226 Difference]: Without dead ends: 818 [2024-11-27 23:32:31,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:32:31,629 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:31,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 428 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:32:31,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-11-27 23:32:31,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2024-11-27 23:32:31,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 722 states have (on average 1.2673130193905817) internal successors, (915), 733 states have internal predecessors, (915), 80 states have call successors, (80), 15 states have call predecessors, (80), 15 states have return successors, (80), 69 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-27 23:32:31,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1075 transitions. [2024-11-27 23:32:31,726 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1075 transitions. Word has length 160 [2024-11-27 23:32:31,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:31,727 INFO L471 AbstractCegarLoop]: Abstraction has 818 states and 1075 transitions. [2024-11-27 23:32:31,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:32:31,728 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1075 transitions. [2024-11-27 23:32:31,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:32:31,730 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:31,731 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:31,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:32:31,731 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:31,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:31,732 INFO L85 PathProgramCache]: Analyzing trace with hash -803156002, now seen corresponding path program 1 times [2024-11-27 23:32:31,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:31,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568350204] [2024-11-27 23:32:31,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:31,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:33,373 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:32:33,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:33,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568350204] [2024-11-27 23:32:33,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568350204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:33,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:33,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:32:33,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811078902] [2024-11-27 23:32:33,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:33,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:32:33,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:33,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:32:33,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:32:33,378 INFO L87 Difference]: Start difference. First operand 818 states and 1075 transitions. Second operand has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:34,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:34,561 INFO L93 Difference]: Finished difference Result 1813 states and 2377 transitions. [2024-11-27 23:32:34,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:32:34,562 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-27 23:32:34,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:34,567 INFO L225 Difference]: With dead ends: 1813 [2024-11-27 23:32:34,567 INFO L226 Difference]: Without dead ends: 1011 [2024-11-27 23:32:34,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:32:34,570 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 53 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:34,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 693 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:32:34,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2024-11-27 23:32:34,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 793. [2024-11-27 23:32:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 699 states have (on average 1.2660944206008584) internal successors, (885), 709 states have internal predecessors, (885), 78 states have call successors, (78), 15 states have call predecessors, (78), 15 states have return successors, (78), 68 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-27 23:32:34,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1041 transitions. [2024-11-27 23:32:34,648 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1041 transitions. Word has length 160 [2024-11-27 23:32:34,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:34,648 INFO L471 AbstractCegarLoop]: Abstraction has 793 states and 1041 transitions. [2024-11-27 23:32:34,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:34,649 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1041 transitions. [2024-11-27 23:32:34,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:32:34,651 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:34,651 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:34,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:32:34,651 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:34,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:34,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1824224356, now seen corresponding path program 1 times [2024-11-27 23:32:34,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:34,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186925656] [2024-11-27 23:32:34,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:34,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:36,556 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:32:36,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:36,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186925656] [2024-11-27 23:32:36,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186925656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:36,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:36,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:32:36,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189678408] [2024-11-27 23:32:36,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:36,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:32:36,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:36,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:32:36,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:32:36,558 INFO L87 Difference]: Start difference. First operand 793 states and 1041 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:38,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:38,399 INFO L93 Difference]: Finished difference Result 1758 states and 2293 transitions. [2024-11-27 23:32:38,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:32:38,403 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-27 23:32:38,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:38,410 INFO L225 Difference]: With dead ends: 1758 [2024-11-27 23:32:38,410 INFO L226 Difference]: Without dead ends: 981 [2024-11-27 23:32:38,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:32:38,414 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 57 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:38,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 881 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 23:32:38,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2024-11-27 23:32:38,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 958. [2024-11-27 23:32:38,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 845 states have (on average 1.2579881656804734) internal successors, (1063), 858 states have internal predecessors, (1063), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-27 23:32:38,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1243 transitions. [2024-11-27 23:32:38,517 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1243 transitions. Word has length 160 [2024-11-27 23:32:38,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:38,518 INFO L471 AbstractCegarLoop]: Abstraction has 958 states and 1243 transitions. [2024-11-27 23:32:38,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:38,518 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1243 transitions. [2024-11-27 23:32:38,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 23:32:38,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:38,522 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:38,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 23:32:38,522 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:38,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:38,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1092955930, now seen corresponding path program 1 times [2024-11-27 23:32:38,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:38,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953226768] [2024-11-27 23:32:38,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:38,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:38,740 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-27 23:32:38,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:38,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953226768] [2024-11-27 23:32:38,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953226768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:38,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444585578] [2024-11-27 23:32:38,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:38,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:38,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:38,742 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:38,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:32:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:39,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:32:39,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:32:39,129 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:32:39,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444585578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:39,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:32:39,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-27 23:32:39,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616111284] [2024-11-27 23:32:39,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:39,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:32:39,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:39,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:32:39,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:32:39,131 INFO L87 Difference]: Start difference. First operand 958 states and 1243 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:32:39,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:39,273 INFO L93 Difference]: Finished difference Result 1958 states and 2543 transitions. [2024-11-27 23:32:39,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:32:39,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-27 23:32:39,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:39,280 INFO L225 Difference]: With dead ends: 1958 [2024-11-27 23:32:39,281 INFO L226 Difference]: Without dead ends: 1003 [2024-11-27 23:32:39,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:32:39,284 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:39,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 535 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:32:39,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-11-27 23:32:39,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2024-11-27 23:32:39,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 890 states have (on average 1.2449438202247192) internal successors, (1108), 903 states have internal predecessors, (1108), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-27 23:32:39,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1288 transitions. [2024-11-27 23:32:39,388 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1288 transitions. Word has length 162 [2024-11-27 23:32:39,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:39,389 INFO L471 AbstractCegarLoop]: Abstraction has 1003 states and 1288 transitions. [2024-11-27 23:32:39,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:32:39,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1288 transitions. [2024-11-27 23:32:39,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 23:32:39,391 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:39,391 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:39,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:39,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:39,592 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:39,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:39,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1057655491, now seen corresponding path program 1 times [2024-11-27 23:32:39,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:39,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541685868] [2024-11-27 23:32:39,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:39,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:42,485 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:32:42,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:42,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541685868] [2024-11-27 23:32:42,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541685868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:42,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:42,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-27 23:32:42,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261985152] [2024-11-27 23:32:42,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:42,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:32:42,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:42,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:32:42,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:32:42,488 INFO L87 Difference]: Start difference. First operand 1003 states and 1288 transitions. Second operand has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:45,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:45,009 INFO L93 Difference]: Finished difference Result 2185 states and 2804 transitions. [2024-11-27 23:32:45,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:32:45,009 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2024-11-27 23:32:45,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:45,015 INFO L225 Difference]: With dead ends: 2185 [2024-11-27 23:32:45,015 INFO L226 Difference]: Without dead ends: 1185 [2024-11-27 23:32:45,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:32:45,018 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 52 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:45,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 1626 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-27 23:32:45,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2024-11-27 23:32:45,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1063. [2024-11-27 23:32:45,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 950 states have (on average 1.2463157894736843) internal successors, (1184), 963 states have internal predecessors, (1184), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-27 23:32:45,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1364 transitions. [2024-11-27 23:32:45,113 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1364 transitions. Word has length 162 [2024-11-27 23:32:45,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:45,114 INFO L471 AbstractCegarLoop]: Abstraction has 1063 states and 1364 transitions. [2024-11-27 23:32:45,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:45,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1364 transitions. [2024-11-27 23:32:45,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 23:32:45,116 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:45,116 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:45,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 23:32:45,116 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:45,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:45,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1851108411, now seen corresponding path program 1 times [2024-11-27 23:32:45,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:45,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572334659] [2024-11-27 23:32:45,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:45,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:46,161 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:32:46,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:46,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572334659] [2024-11-27 23:32:46,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572334659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:46,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:46,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:32:46,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27613846] [2024-11-27 23:32:46,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:46,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:32:46,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:46,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:32:46,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:46,164 INFO L87 Difference]: Start difference. First operand 1063 states and 1364 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 23:32:46,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:46,774 INFO L93 Difference]: Finished difference Result 2055 states and 2637 transitions. [2024-11-27 23:32:46,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:32:46,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2024-11-27 23:32:46,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:46,779 INFO L225 Difference]: With dead ends: 2055 [2024-11-27 23:32:46,779 INFO L226 Difference]: Without dead ends: 995 [2024-11-27 23:32:46,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:46,781 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:46,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 493 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:32:46,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-27 23:32:46,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 995. [2024-11-27 23:32:46,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 882 states have (on average 1.2403628117913832) internal successors, (1094), 895 states have internal predecessors, (1094), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-27 23:32:46,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1274 transitions. [2024-11-27 23:32:46,888 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1274 transitions. Word has length 162 [2024-11-27 23:32:46,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:46,888 INFO L471 AbstractCegarLoop]: Abstraction has 995 states and 1274 transitions. [2024-11-27 23:32:46,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 23:32:46,889 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1274 transitions. [2024-11-27 23:32:46,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 23:32:46,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:46,891 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:46,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 23:32:46,891 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:46,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:46,892 INFO L85 PathProgramCache]: Analyzing trace with hash -555389885, now seen corresponding path program 1 times [2024-11-27 23:32:46,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:46,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079769178] [2024-11-27 23:32:46,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:46,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:49,294 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:32:49,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:49,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079769178] [2024-11-27 23:32:49,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079769178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:49,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:49,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-27 23:32:49,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712562973] [2024-11-27 23:32:49,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:49,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 23:32:49,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:49,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 23:32:49,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:32:49,297 INFO L87 Difference]: Start difference. First operand 995 states and 1274 transitions. Second operand has 18 states, 16 states have (on average 4.0625) internal successors, (65), 18 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:51,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:51,999 INFO L93 Difference]: Finished difference Result 2307 states and 2942 transitions. [2024-11-27 23:32:52,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 23:32:52,000 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.0625) internal successors, (65), 18 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2024-11-27 23:32:52,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:52,006 INFO L225 Difference]: With dead ends: 2307 [2024-11-27 23:32:52,006 INFO L226 Difference]: Without dead ends: 1315 [2024-11-27 23:32:52,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2024-11-27 23:32:52,009 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 164 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:52,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 1954 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 23:32:52,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2024-11-27 23:32:52,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1043. [2024-11-27 23:32:52,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 930 states have (on average 1.2344086021505376) internal successors, (1148), 943 states have internal predecessors, (1148), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-27 23:32:52,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1328 transitions. [2024-11-27 23:32:52,135 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1328 transitions. Word has length 162 [2024-11-27 23:32:52,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:52,136 INFO L471 AbstractCegarLoop]: Abstraction has 1043 states and 1328 transitions. [2024-11-27 23:32:52,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.0625) internal successors, (65), 18 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:32:52,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1328 transitions. [2024-11-27 23:32:52,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 23:32:52,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:52,138 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:52,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 23:32:52,139 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:52,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:52,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1934139077, now seen corresponding path program 1 times [2024-11-27 23:32:52,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:52,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13782954] [2024-11-27 23:32:52,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:52,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:58,951 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:32:58,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:58,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13782954] [2024-11-27 23:32:58,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13782954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:58,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:58,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-27 23:32:58,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029663882] [2024-11-27 23:32:58,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:58,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:32:58,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:58,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:32:58,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:32:58,954 INFO L87 Difference]: Start difference. First operand 1043 states and 1328 transitions. Second operand has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:33:01,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:01,360 INFO L93 Difference]: Finished difference Result 2087 states and 2656 transitions. [2024-11-27 23:33:01,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:33:01,361 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2024-11-27 23:33:01,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:01,365 INFO L225 Difference]: With dead ends: 2087 [2024-11-27 23:33:01,365 INFO L226 Difference]: Without dead ends: 1047 [2024-11-27 23:33:01,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:33:01,367 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 51 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:01,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1467 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 23:33:01,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2024-11-27 23:33:01,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 995. [2024-11-27 23:33:01,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 882 states have (on average 1.2358276643990929) internal successors, (1090), 895 states have internal predecessors, (1090), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-27 23:33:01,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1270 transitions. [2024-11-27 23:33:01,472 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1270 transitions. Word has length 162 [2024-11-27 23:33:01,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:01,473 INFO L471 AbstractCegarLoop]: Abstraction has 995 states and 1270 transitions. [2024-11-27 23:33:01,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:33:01,473 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1270 transitions. [2024-11-27 23:33:01,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 23:33:01,475 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:01,475 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:01,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 23:33:01,476 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:33:01,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:01,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1940567467, now seen corresponding path program 1 times [2024-11-27 23:33:01,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:01,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627072882] [2024-11-27 23:33:01,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:01,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:01,960 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:33:01,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:01,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627072882] [2024-11-27 23:33:01,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627072882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:01,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:01,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:33:01,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557257524] [2024-11-27 23:33:01,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:01,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:33:01,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:01,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:33:01,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:33:01,962 INFO L87 Difference]: Start difference. First operand 995 states and 1270 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:33:02,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:02,880 INFO L93 Difference]: Finished difference Result 2778 states and 3517 transitions. [2024-11-27 23:33:02,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:33:02,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-27 23:33:02,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:02,888 INFO L225 Difference]: With dead ends: 2778 [2024-11-27 23:33:02,888 INFO L226 Difference]: Without dead ends: 1786 [2024-11-27 23:33:02,890 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:33:02,892 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 102 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:02,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 290 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:33:02,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2024-11-27 23:33:03,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1266. [2024-11-27 23:33:03,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1153 states have (on average 1.2168256721595836) internal successors, (1403), 1166 states have internal predecessors, (1403), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-27 23:33:03,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1583 transitions. [2024-11-27 23:33:03,013 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1583 transitions. Word has length 164 [2024-11-27 23:33:03,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:03,014 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1583 transitions. [2024-11-27 23:33:03,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:33:03,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1583 transitions. [2024-11-27 23:33:03,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 23:33:03,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:03,016 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:03,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-27 23:33:03,016 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:33:03,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:03,017 INFO L85 PathProgramCache]: Analyzing trace with hash 362288575, now seen corresponding path program 1 times [2024-11-27 23:33:03,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:03,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414753808] [2024-11-27 23:33:03,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:03,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:33:03,227 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:33:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:33:03,501 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 23:33:03,502 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:33:03,503 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 23:33:03,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 23:33:03,509 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:03,630 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:33:03,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:33:03 BoogieIcfgContainer [2024-11-27 23:33:03,636 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:33:03,637 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:33:03,637 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:33:03,637 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:33:03,638 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:36" (3/4) ... [2024-11-27 23:33:03,641 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 23:33:03,642 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:33:03,643 INFO L158 Benchmark]: Toolchain (without parser) took 88854.62ms. Allocated memory was 142.6MB in the beginning and 864.0MB in the end (delta: 721.4MB). Free memory was 100.0MB in the beginning and 723.8MB in the end (delta: -623.8MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB. [2024-11-27 23:33:03,643 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:33:03,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 477.32ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 83.0MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:33:03,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.74ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 78.6MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:33:03,644 INFO L158 Benchmark]: Boogie Preprocessor took 68.33ms. Allocated memory is still 142.6MB. Free memory was 78.6MB in the beginning and 75.3MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:33:03,644 INFO L158 Benchmark]: RCFGBuilder took 1324.19ms. Allocated memory is still 142.6MB. Free memory was 75.3MB in the beginning and 42.1MB in the end (delta: 33.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-27 23:33:03,645 INFO L158 Benchmark]: TraceAbstraction took 86873.25ms. Allocated memory was 142.6MB in the beginning and 864.0MB in the end (delta: 721.4MB). Free memory was 41.8MB in the beginning and 724.1MB in the end (delta: -682.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-27 23:33:03,645 INFO L158 Benchmark]: Witness Printer took 5.55ms. Allocated memory is still 864.0MB. Free memory was 724.1MB in the beginning and 723.8MB in the end (delta: 276.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:33:03,649 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 477.32ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 83.0MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.74ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 78.6MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 68.33ms. Allocated memory is still 142.6MB. Free memory was 78.6MB in the beginning and 75.3MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1324.19ms. Allocated memory is still 142.6MB. Free memory was 75.3MB in the beginning and 42.1MB in the end (delta: 33.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 86873.25ms. Allocated memory was 142.6MB in the beginning and 864.0MB in the end (delta: 721.4MB). Free memory was 41.8MB in the beginning and 724.1MB in the end (delta: -682.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 5.55ms. Allocated memory is still 864.0MB. Free memory was 724.1MB in the beginning and 723.8MB in the end (delta: 276.6kB). Peak memory consumption was 8.4MB. 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 someBinaryFLOATComparisonOperation at line 120, overapproximation of someBinaryFLOATComparisonOperation at line 113, overapproximation of someBinaryFLOATComparisonOperation at line 113. Possible FailurePath: [L39] unsigned char isInitial = 0; [L40-L56] struct WrapperStruct00 WrapperStruct00 = { 128, 25, 64, 8, 0, 64, 1, 27843, -4, 128, 5, 28020, 128, 10000000000000.926, 1000000.6 }; [L57] unsigned short int last_1_WrapperStruct00_var_1_8 = 64; [L58] signed short int last_1_WrapperStruct00_var_1_11 = -4; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L124] isInitial = 1 [L125] FCALL initially() [L127] CALL updateLastVariables() [L116] EXPR WrapperStruct00.var_1_8 [L116] last_1_WrapperStruct00_var_1_8 = WrapperStruct00.var_1_8 [L117] EXPR WrapperStruct00.var_1_11 [L117] last_1_WrapperStruct00_var_1_11 = WrapperStruct00.var_1_11 [L127] RET updateLastVariables() [L128] CALL updateVariables() [L84] WrapperStruct00.var_1_4 = __VERIFIER_nondet_uchar() [L85] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L85] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L85] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L86] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L86] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L86] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L87] WrapperStruct00.var_1_5 = __VERIFIER_nondet_uchar() [L88] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L88] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L88] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L89] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L89] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L89] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L90] WrapperStruct00.var_1_6 = __VERIFIER_nondet_uchar() [L91] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L92] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L93] WrapperStruct00.var_1_7 = __VERIFIER_nondet_uchar() [L94] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L94] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L95] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L96] WrapperStruct00.var_1_9 = __VERIFIER_nondet_uchar() [L97] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L97] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L98] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L98] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L99] WrapperStruct00.var_1_10 = __VERIFIER_nondet_ushort() [L100] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L100] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L100] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= 16383) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L101] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 32767) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L101] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 32767) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L102] WrapperStruct00.var_1_13 = __VERIFIER_nondet_uchar() [L103] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_13 >= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L103] RET assume_abort_if_not(WrapperStruct00.var_1_13 >= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L104] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_13 <= 255) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L104] RET assume_abort_if_not(WrapperStruct00.var_1_13 <= 255) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L105] WrapperStruct00.var_1_14 = __VERIFIER_nondet_uchar() [L106] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L106] CALL assume_abort_if_not(WrapperStruct00.var_1_14 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L106] RET assume_abort_if_not(WrapperStruct00.var_1_14 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L107] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_14 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L107] RET assume_abort_if_not(WrapperStruct00.var_1_14 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L108] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_14 != 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L108] RET assume_abort_if_not(WrapperStruct00.var_1_14 != 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L109] WrapperStruct00.var_1_15 = __VERIFIER_nondet_short() [L110] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_15 >= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L110] RET assume_abort_if_not(WrapperStruct00.var_1_15 >= 16383) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L111] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L111] CALL assume_abort_if_not(WrapperStruct00.var_1_15 <= 32766) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L111] RET assume_abort_if_not(WrapperStruct00.var_1_15 <= 32766) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L112] WrapperStruct00.var_1_18 = __VERIFIER_nondet_float() [L113] EXPR WrapperStruct00.var_1_18 [L113] EXPR WrapperStruct00.var_1_18 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_18 <= -1.0e-20F [L113] EXPR WrapperStruct00.var_1_18 [L113] EXPR WrapperStruct00.var_1_18 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_18 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L113] EXPR (WrapperStruct00.var_1_18 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_18 <= -1.0e-20F) || (WrapperStruct00.var_1_18 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_18 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L113] CALL assume_abort_if_not((WrapperStruct00.var_1_18 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_18 <= -1.0e-20F) || (WrapperStruct00.var_1_18 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_18 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L113] RET assume_abort_if_not((WrapperStruct00.var_1_18 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_18 <= -1.0e-20F) || (WrapperStruct00.var_1_18 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_18 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L128] RET updateVariables() [L129] CALL step() [L62] signed long int stepLocal_0 = last_1_WrapperStruct00_var_1_11; VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64, stepLocal_0=-4] [L63] COND TRUE stepLocal_0 != last_1_WrapperStruct00_var_1_8 [L64] EXPR WrapperStruct00.var_1_4 [L64] EXPR WrapperStruct00.var_1_5 [L64] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L64] EXPR ((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6) [L64] EXPR WrapperStruct00.var_1_5 [L64] EXPR ((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L64] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L64] EXPR ((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7) [L64] EXPR WrapperStruct00.var_1_7 [L64] EXPR ((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L64] WrapperStruct00.var_1_1 = (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))) [L68] WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L68] COND TRUE WrapperStruct00.var_1_9 [L69] EXPR WrapperStruct00.var_1_10 [L69] EXPR WrapperStruct00.var_1_6 [L69] WrapperStruct00.var_1_8 = ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)) [L71] EXPR WrapperStruct00.var_1_5 [L71] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L71] COND TRUE ! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10) [L72] WrapperStruct00.var_1_16 = (32 - 8) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L76] EXPR WrapperStruct00.var_1_18 [L76] WrapperStruct00.var_1_17 = WrapperStruct00.var_1_18 [L77] EXPR WrapperStruct00.var_1_1 [L77] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L77] COND FALSE !(WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) [L129] RET step() [L130] CALL, EXPR property() [L120] EXPR (last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4)) [L120] EXPR WrapperStruct00.var_1_1 [L120] EXPR WrapperStruct00.var_1_4 [L120] EXPR WrapperStruct00.var_1_5 [L120] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6) [L120] EXPR WrapperStruct00.var_1_5 [L120] EXPR ((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7) [L120] EXPR WrapperStruct00.var_1_7 [L120] EXPR ((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1) [L120] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1 [L120] EXPR WrapperStruct00.var_1_8 [L120] EXPR WrapperStruct00.var_1_10 [L120] EXPR WrapperStruct00.var_1_6 [L120] EXPR WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1) [L120] EXPR WrapperStruct00.var_1_1 [L120] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1)) && ((! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4)))) [L120] EXPR WrapperStruct00.var_1_5 [L120] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4))) [L120] EXPR WrapperStruct00.var_1_16 [L120] EXPR (! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1)) && ((! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (((((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1)) && ((! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4))))) && (WrapperStruct00.var_1_17 == ((float) WrapperStruct00.var_1_18)) [L120] EXPR WrapperStruct00.var_1_17 [L120] EXPR WrapperStruct00.var_1_18 [L120] EXPR (((((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1)) && ((! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4))))) && (WrapperStruct00.var_1_17 == ((float) WrapperStruct00.var_1_18)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120-L121] return (((((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1)) && ((! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4))))) && (WrapperStruct00.var_1_17 == ((float) WrapperStruct00.var_1_18)) ; [L130] RET, EXPR property() [L130] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 86.7s, OverallIterations: 23, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 33.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1470 SdHoareTripleChecker+Valid, 28.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1442 mSDsluCounter, 17967 SdHoareTripleChecker+Invalid, 26.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14897 mSDsCounter, 176 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12215 IncrementalHoareTripleChecker+Invalid, 12391 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 176 mSolverCounterUnsat, 3070 mSDtfsCounter, 12215 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 808 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1266occurred in iteration=22, InterpolantAutomatonStates: 210, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 22 MinimizatonAttempts, 2729 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 46.1s InterpolantComputationTime, 3976 NumberOfCodeBlocks, 3976 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 3788 ConstructedInterpolants, 0 QuantifiedInterpolants, 11813 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1098 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 24 InterpolantComputations, 22 PerfectInterpolantSequences, 18145/18240 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 [2024-11-27 23:33:03,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/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_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fa328083b1d4aa3a21868494aa94d1f433f55ced0b8b3227cc831ea530b809d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:33:06,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:33:06,868 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-27 23:33:06,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:33:06,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:33:06,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:33:06,947 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:33:06,947 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:33:06,948 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:33:06,948 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:33:06,949 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:33:06,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:33:06,950 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:33:06,950 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:33:06,950 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:33:06,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:33:06,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:33:06,951 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:33:06,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:33:06,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:33:06,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:33:06,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:33:06,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:33:06,952 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 23:33:06,952 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 23:33:06,952 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 23:33:06,952 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:33:06,952 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:33:06,953 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:33:06,953 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:33:06,953 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:33:06,953 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:33:06,953 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:33:06,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:33:06,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:33:06,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:33:06,955 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:33:06,955 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:33:06,955 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:33:06,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:33:06,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:33:06,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:33:06,955 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:33:06,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:33:06,955 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 23:33:06,955 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 23:33:06,956 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:33:06,956 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:33:06,956 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:33:06,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:33:06,956 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_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fa328083b1d4aa3a21868494aa94d1f433f55ced0b8b3227cc831ea530b809d [2024-11-27 23:33:07,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:33:07,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:33:07,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:33:07,342 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:33:07,343 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:33:07,345 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i [2024-11-27 23:33:10,792 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/data/cb292acb6/caa7cdeb909746d996f5621e330a4872/FLAG9478ed71c [2024-11-27 23:33:11,123 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:33:11,124 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i [2024-11-27 23:33:11,135 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/data/cb292acb6/caa7cdeb909746d996f5621e330a4872/FLAG9478ed71c [2024-11-27 23:33:11,163 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/data/cb292acb6/caa7cdeb909746d996f5621e330a4872 [2024-11-27 23:33:11,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:33:11,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:33:11,170 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:33:11,171 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:33:11,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:33:11,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:33:11" (1/1) ... [2024-11-27 23:33:11,182 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2161215e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:11, skipping insertion in model container [2024-11-27 23:33:11,183 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:33:11" (1/1) ... [2024-11-27 23:33:11,207 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:33:11,423 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_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i[916,929] [2024-11-27 23:33:11,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:33:11,562 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:33:11,576 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_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i[916,929] [2024-11-27 23:33:11,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:33:11,712 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:33:11,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:11 WrapperNode [2024-11-27 23:33:11,713 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:33:11,714 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:33:11,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:33:11,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:33:11,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:11" (1/1) ... [2024-11-27 23:33:11,742 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:11" (1/1) ... [2024-11-27 23:33:11,785 INFO L138 Inliner]: procedures = 34, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 421 [2024-11-27 23:33:11,786 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:33:11,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:33:11,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:33:11,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:33:11,797 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:11" (1/1) ... [2024-11-27 23:33:11,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:11" (1/1) ... [2024-11-27 23:33:11,804 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:11" (1/1) ... [2024-11-27 23:33:11,824 INFO L175 MemorySlicer]: Split 123 memory accesses to 2 slices as follows [2, 121]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 33 writes are split as follows [0, 33]. [2024-11-27 23:33:11,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:11" (1/1) ... [2024-11-27 23:33:11,825 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:11" (1/1) ... [2024-11-27 23:33:11,854 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:11" (1/1) ... [2024-11-27 23:33:11,856 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:11" (1/1) ... [2024-11-27 23:33:11,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:11" (1/1) ... [2024-11-27 23:33:11,870 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:11" (1/1) ... [2024-11-27 23:33:11,878 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:11" (1/1) ... [2024-11-27 23:33:11,887 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:33:11,890 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:33:11,891 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:33:11,891 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:33:11,892 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:11" (1/1) ... [2024-11-27 23:33:11,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:33:11,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:11,934 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:33:11,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:33:11,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:33:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-27 23:33:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-27 23:33:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 23:33:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-27 23:33:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-27 23:33:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-27 23:33:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-27 23:33:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-27 23:33:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-27 23:33:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-27 23:33:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-27 23:33:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-27 23:33:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-27 23:33:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-27 23:33:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:33:11,988 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:33:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-27 23:33:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-27 23:33:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:33:11,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:33:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-27 23:33:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-27 23:33:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-27 23:33:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-27 23:33:12,183 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:33:12,186 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:33:13,174 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-11-27 23:33:13,174 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:33:13,188 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:33:13,189 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:33:13,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:33:13 BoogieIcfgContainer [2024-11-27 23:33:13,189 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:33:13,192 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:33:13,192 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:33:13,199 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:33:13,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:33:11" (1/3) ... [2024-11-27 23:33:13,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9e6757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:33:13, skipping insertion in model container [2024-11-27 23:33:13,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:11" (2/3) ... [2024-11-27 23:33:13,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9e6757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:33:13, skipping insertion in model container [2024-11-27 23:33:13,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:33:13" (3/3) ... [2024-11-27 23:33:13,202 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-84.i [2024-11-27 23:33:13,221 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:33:13,223 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-84.i that has 2 procedures, 103 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:33:13,304 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:33:13,317 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;@1e994574, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:33:13,318 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:33:13,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 23:33:13,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:33:13,337 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:13,338 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:13,338 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:33:13,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:13,344 INFO L85 PathProgramCache]: Analyzing trace with hash 557809999, now seen corresponding path program 1 times [2024-11-27 23:33:13,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:33:13,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330451660] [2024-11-27 23:33:13,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:13,359 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 [2024-11-27 23:33:13,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:33:13,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:33:13,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:33:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:13,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:33:13,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:13,979 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-27 23:33:13,979 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:33:13,980 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:33:13,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330451660] [2024-11-27 23:33:13,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330451660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:13,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:13,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:33:13,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356382063] [2024-11-27 23:33:13,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:13,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:33:13,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:33:14,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:33:14,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:33:14,016 INFO L87 Difference]: Start difference. First operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 23:33:14,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:14,068 INFO L93 Difference]: Finished difference Result 199 states and 310 transitions. [2024-11-27 23:33:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:33:14,072 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 150 [2024-11-27 23:33:14,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:14,081 INFO L225 Difference]: With dead ends: 199 [2024-11-27 23:33:14,082 INFO L226 Difference]: Without dead ends: 99 [2024-11-27 23:33:14,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:33:14,093 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:14,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:33:14,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-27 23:33:14,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-27 23:33:14,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.3116883116883118) internal successors, (101), 77 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 23:33:14,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2024-11-27 23:33:14,165 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 150 [2024-11-27 23:33:14,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:14,166 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2024-11-27 23:33:14,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 23:33:14,167 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2024-11-27 23:33:14,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:33:14,173 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:14,174 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:14,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:33:14,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:33:14,379 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:33:14,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:14,381 INFO L85 PathProgramCache]: Analyzing trace with hash 665716147, now seen corresponding path program 1 times [2024-11-27 23:33:14,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:33:14,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913462369] [2024-11-27 23:33:14,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:14,383 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 [2024-11-27 23:33:14,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:33:14,387 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:33:14,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:33:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:14,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:33:14,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:14,947 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:33:14,949 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:33:14,949 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:33:14,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913462369] [2024-11-27 23:33:14,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913462369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:14,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:14,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:33:14,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407153066] [2024-11-27 23:33:14,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:14,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:33:14,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:33:14,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:33:14,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:33:14,954 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:33:15,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:15,129 INFO L93 Difference]: Finished difference Result 202 states and 289 transitions. [2024-11-27 23:33:15,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:33:15,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-27 23:33:15,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:15,135 INFO L225 Difference]: With dead ends: 202 [2024-11-27 23:33:15,137 INFO L226 Difference]: Without dead ends: 106 [2024-11-27 23:33:15,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:33:15,142 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 1 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:15,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 653 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:33:15,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-27 23:33:15,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-27 23:33:15,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 83 states have (on average 1.2891566265060241) internal successors, (107), 83 states have internal predecessors, (107), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 23:33:15,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 147 transitions. [2024-11-27 23:33:15,170 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 147 transitions. Word has length 150 [2024-11-27 23:33:15,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:15,172 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 147 transitions. [2024-11-27 23:33:15,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:33:15,173 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 147 transitions. [2024-11-27 23:33:15,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-27 23:33:15,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:15,183 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:15,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:33:15,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:33:15,388 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:33:15,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:15,390 INFO L85 PathProgramCache]: Analyzing trace with hash 667563189, now seen corresponding path program 1 times [2024-11-27 23:33:15,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:33:15,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893942638] [2024-11-27 23:33:15,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:15,392 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 [2024-11-27 23:33:15,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:33:15,395 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:33:15,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:33:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:15,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:33:15,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:16,013 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 85 treesize of output 84 [2024-11-27 23:33:16,373 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 153 treesize of output 129 [2024-11-27 23:33:17,054 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:33:17,054 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:33:17,054 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:33:17,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893942638] [2024-11-27 23:33:17,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893942638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:17,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:17,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:33:17,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248788175] [2024-11-27 23:33:17,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:17,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:33:17,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:33:17,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:33:17,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:33:17,058 INFO L87 Difference]: Start difference. First operand 105 states and 147 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:33:19,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:19,478 INFO L93 Difference]: Finished difference Result 314 states and 439 transitions. [2024-11-27 23:33:19,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:33:19,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-27 23:33:19,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:19,483 INFO L225 Difference]: With dead ends: 314 [2024-11-27 23:33:19,483 INFO L226 Difference]: Without dead ends: 212 [2024-11-27 23:33:19,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:33:19,485 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 75 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:19,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 477 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-27 23:33:19,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-27 23:33:19,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 177. [2024-11-27 23:33:19,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 133 states have (on average 1.255639097744361) internal successors, (167), 133 states have internal predecessors, (167), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 23:33:19,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 247 transitions. [2024-11-27 23:33:19,531 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 247 transitions. Word has length 150 [2024-11-27 23:33:19,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:19,532 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 247 transitions. [2024-11-27 23:33:19,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:33:19,533 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 247 transitions. [2024-11-27 23:33:19,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-27 23:33:19,536 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:19,536 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:19,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-27 23:33:19,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:33:19,741 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:33:19,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:19,742 INFO L85 PathProgramCache]: Analyzing trace with hash -329940525, now seen corresponding path program 1 times [2024-11-27 23:33:19,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:33:19,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422069927] [2024-11-27 23:33:19,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:19,743 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 [2024-11-27 23:33:19,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:33:19,748 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:33:19,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:33:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:20,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-27 23:33:20,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:20,245 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 [2024-11-27 23:33:20,364 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 [2024-11-27 23:33:20,640 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:20,640 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 35 treesize of output 37 [2024-11-27 23:33:21,007 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:21,007 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 45 treesize of output 50 [2024-11-27 23:33:21,381 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:21,381 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 55 treesize of output 63 [2024-11-27 23:33:21,804 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:21,804 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 65 treesize of output 76 [2024-11-27 23:33:22,429 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:22,429 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 80 treesize of output 79 [2024-11-27 23:33:22,913 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:22,914 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 75 treesize of output 89 [2024-11-27 23:33:23,813 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:23,814 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 85 treesize of output 102 [2024-11-27 23:33:24,550 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:24,551 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 100 treesize of output 105 [2024-11-27 23:33:25,585 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:25,586 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 112 treesize of output 120 [2024-11-27 23:33:25,956 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:25,957 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 140 treesize of output 145 [2024-11-27 23:33:26,399 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:26,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 145 treesize of output 150 [2024-11-27 23:33:26,719 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:26,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 145 treesize of output 150 [2024-11-27 23:33:27,794 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:27,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 155 treesize of output 75 [2024-11-27 23:33:28,148 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-27 23:33:28,148 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:33:28,148 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:33:28,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422069927] [2024-11-27 23:33:28,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422069927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:28,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:28,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-27 23:33:28,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300059661] [2024-11-27 23:33:28,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:28,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 23:33:28,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:33:28,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 23:33:28,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:33:28,152 INFO L87 Difference]: Start difference. First operand 177 states and 247 transitions. Second operand has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 states have internal predecessors, (82), 8 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-27 23:33:34,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:34,391 INFO L93 Difference]: Finished difference Result 388 states and 539 transitions. [2024-11-27 23:33:34,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:33:34,392 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 states have internal predecessors, (82), 8 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 158 [2024-11-27 23:33:34,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:34,395 INFO L225 Difference]: With dead ends: 388 [2024-11-27 23:33:34,395 INFO L226 Difference]: Without dead ends: 286 [2024-11-27 23:33:34,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 139 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=145, Invalid=275, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:33:34,397 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 404 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:34,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 521 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-27 23:33:34,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-27 23:33:34,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 203. [2024-11-27 23:33:34,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 159 states have (on average 1.2830188679245282) internal successors, (204), 159 states have internal predecessors, (204), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 23:33:34,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 284 transitions. [2024-11-27 23:33:34,457 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 284 transitions. Word has length 158 [2024-11-27 23:33:34,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:34,458 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 284 transitions. [2024-11-27 23:33:34,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 states have internal predecessors, (82), 8 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-27 23:33:34,458 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 284 transitions. [2024-11-27 23:33:34,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-27 23:33:34,461 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:34,461 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:34,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-27 23:33:34,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:33:34,662 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:33:34,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:34,663 INFO L85 PathProgramCache]: Analyzing trace with hash -2135378859, now seen corresponding path program 1 times [2024-11-27 23:33:34,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:33:34,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230040622] [2024-11-27 23:33:34,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:34,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:33:34,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:33:34,668 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:33:34,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:33:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:35,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-27 23:33:35,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:35,120 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 [2024-11-27 23:33:35,125 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 [2024-11-27 23:33:35,220 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 [2024-11-27 23:33:35,424 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:35,425 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 [2024-11-27 23:33:35,573 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:35,573 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 35 treesize of output 37 [2024-11-27 23:33:35,839 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:35,839 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 45 treesize of output 50 [2024-11-27 23:33:36,192 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:36,193 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 55 treesize of output 63 [2024-11-27 23:33:36,540 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:36,543 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 70 treesize of output 66 [2024-11-27 23:33:36,999 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:36,999 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 65 treesize of output 76 [2024-11-27 23:33:37,478 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:37,479 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 80 treesize of output 79 [2024-11-27 23:33:38,260 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:38,260 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 92 treesize of output 112 [2024-11-27 23:33:38,588 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:38,588 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 107 treesize of output 115 [2024-11-27 23:33:38,666 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:38,666 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 107 treesize of output 115 [2024-11-27 23:33:39,144 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:39,144 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 117 treesize of output 49 [2024-11-27 23:33:39,330 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 668 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-27 23:33:39,330 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:33:39,330 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:33:39,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230040622] [2024-11-27 23:33:39,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230040622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:39,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:39,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-27 23:33:39,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675108722] [2024-11-27 23:33:39,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:39,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 23:33:39,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:33:39,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 23:33:39,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:33:39,332 INFO L87 Difference]: Start difference. First operand 203 states and 284 transitions. Second operand has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 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) [2024-11-27 23:33:43,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:43,920 INFO L93 Difference]: Finished difference Result 374 states and 523 transitions. [2024-11-27 23:33:43,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:33:43,921 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 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 158 [2024-11-27 23:33:43,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:43,923 INFO L225 Difference]: With dead ends: 374 [2024-11-27 23:33:43,923 INFO L226 Difference]: Without dead ends: 256 [2024-11-27 23:33:43,924 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:33:43,925 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 353 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:43,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 504 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-27 23:33:43,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-27 23:33:43,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 203. [2024-11-27 23:33:43,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 159 states have (on average 1.2830188679245282) internal successors, (204), 159 states have internal predecessors, (204), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 23:33:43,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 284 transitions. [2024-11-27 23:33:43,994 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 284 transitions. Word has length 158 [2024-11-27 23:33:43,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:43,995 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 284 transitions. [2024-11-27 23:33:43,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 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) [2024-11-27 23:33:43,996 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 284 transitions. [2024-11-27 23:33:43,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:33:43,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:43,998 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:44,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:33:44,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:33:44,199 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:33:44,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:44,200 INFO L85 PathProgramCache]: Analyzing trace with hash 634758488, now seen corresponding path program 1 times [2024-11-27 23:33:44,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:33:44,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018722190] [2024-11-27 23:33:44,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:44,201 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 [2024-11-27 23:33:44,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:33:44,202 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:33:44,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:33:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:44,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-27 23:33:44,648 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:44,655 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 [2024-11-27 23:33:44,738 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 15 [2024-11-27 23:33:44,791 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 15 [2024-11-27 23:33:45,009 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:45,009 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 [2024-11-27 23:33:45,283 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:45,283 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 [2024-11-27 23:33:45,487 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:45,488 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 [2024-11-27 23:33:45,683 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:45,683 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 47 treesize of output 52 [2024-11-27 23:33:46,283 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:46,284 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 62 treesize of output 55 [2024-11-27 23:33:46,616 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:46,617 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 62 treesize of output 55 [2024-11-27 23:33:47,443 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:47,444 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 67 treesize of output 69 [2024-11-27 23:33:47,627 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:47,627 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 100 treesize of output 111 [2024-11-27 23:33:47,878 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:47,878 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 115 treesize of output 114 [2024-11-27 23:33:47,953 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:47,953 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 115 treesize of output 114 [2024-11-27 23:33:48,399 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:48,399 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 117 treesize of output 53 [2024-11-27 23:33:48,493 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 529 proven. 81 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-27 23:33:48,493 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:48,996 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:33:48,996 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:33:48,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018722190] [2024-11-27 23:33:48,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018722190] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:48,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:33:48,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 24 [2024-11-27 23:33:48,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559617746] [2024-11-27 23:33:48,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:48,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:33:48,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:33:48,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:33:48,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:33:48,998 INFO L87 Difference]: Start difference. First operand 203 states and 284 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:33:50,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:50,062 INFO L93 Difference]: Finished difference Result 395 states and 551 transitions. [2024-11-27 23:33:50,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:33:50,063 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-27 23:33:50,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:50,064 INFO L225 Difference]: With dead ends: 395 [2024-11-27 23:33:50,065 INFO L226 Difference]: Without dead ends: 277 [2024-11-27 23:33:50,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=133, Invalid=569, Unknown=0, NotChecked=0, Total=702 [2024-11-27 23:33:50,066 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 165 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:50,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 521 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:33:50,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-11-27 23:33:50,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 274. [2024-11-27 23:33:50,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 227 states have (on average 1.3083700440528634) internal successors, (297), 228 states have internal predecessors, (297), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-27 23:33:50,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 381 transitions. [2024-11-27 23:33:50,141 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 381 transitions. Word has length 160 [2024-11-27 23:33:50,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:50,142 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 381 transitions. [2024-11-27 23:33:50,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:33:50,142 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 381 transitions. [2024-11-27 23:33:50,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:33:50,144 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:50,145 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:50,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:33:50,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:33:50,345 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:33:50,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:50,346 INFO L85 PathProgramCache]: Analyzing trace with hash -386309866, now seen corresponding path program 1 times [2024-11-27 23:33:50,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:33:50,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681446819] [2024-11-27 23:33:50,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:50,346 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 [2024-11-27 23:33:50,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:33:50,348 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:33:50,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:33:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:50,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-27 23:33:50,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:50,746 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 [2024-11-27 23:33:50,921 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 29 [2024-11-27 23:33:51,390 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:51,391 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 46 treesize of output 42 [2024-11-27 23:33:52,197 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:52,198 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 72 treesize of output 50 [2024-11-27 23:33:52,665 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:52,665 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 67 treesize of output 60 [2024-11-27 23:33:53,287 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:53,288 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 55 treesize of output 63 [2024-11-27 23:33:54,059 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:54,060 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 70 treesize of output 66 [2024-11-27 23:33:54,755 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:54,756 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 65 treesize of output 76 [2024-11-27 23:33:55,576 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:55,577 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 80 treesize of output 79 [2024-11-27 23:33:57,253 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:57,254 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 115 treesize of output 105 [2024-11-27 23:33:57,650 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:57,651 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 143 treesize of output 130 [2024-11-27 23:33:58,083 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:58,084 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 158 treesize of output 133 [2024-11-27 23:33:58,431 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:33:58,431 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 158 treesize of output 133 [2024-11-27 23:33:59,301 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 576 proven. 117 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-27 23:33:59,302 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:00,382 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:34:00,383 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:34:00,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681446819] [2024-11-27 23:34:00,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1681446819] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:00,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:34:00,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [27] total 34 [2024-11-27 23:34:00,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690572279] [2024-11-27 23:34:00,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:00,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:34:00,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:34:00,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:34:00,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=886, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 23:34:00,385 INFO L87 Difference]: Start difference. First operand 274 states and 381 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:02,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:02,681 INFO L93 Difference]: Finished difference Result 558 states and 770 transitions. [2024-11-27 23:34:02,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:34:02,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-27 23:34:02,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:02,686 INFO L225 Difference]: With dead ends: 558 [2024-11-27 23:34:02,686 INFO L226 Difference]: Without dead ends: 383 [2024-11-27 23:34:02,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 284 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=312, Invalid=1248, Unknown=0, NotChecked=0, Total=1560 [2024-11-27 23:34:02,688 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 262 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:02,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 746 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 23:34:02,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-27 23:34:02,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 284. [2024-11-27 23:34:02,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 237 states have (on average 1.3206751054852321) internal successors, (313), 238 states have internal predecessors, (313), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-27 23:34:02,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 397 transitions. [2024-11-27 23:34:02,749 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 397 transitions. Word has length 160 [2024-11-27 23:34:02,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:02,749 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 397 transitions. [2024-11-27 23:34:02,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:02,750 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 397 transitions. [2024-11-27 23:34:02,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:34:02,751 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:02,752 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:02,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:34:02,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:34:02,952 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:02,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:02,953 INFO L85 PathProgramCache]: Analyzing trace with hash -383894516, now seen corresponding path program 1 times [2024-11-27 23:34:02,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:34:02,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922247999] [2024-11-27 23:34:02,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:02,953 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 [2024-11-27 23:34:02,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:34:02,955 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:34:02,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-27 23:34:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:03,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:34:03,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:03,239 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:34:03,240 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:34:03,240 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:34:03,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1922247999] [2024-11-27 23:34:03,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1922247999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:03,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:03,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:34:03,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335670653] [2024-11-27 23:34:03,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:03,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:34:03,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:34:03,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:34:03,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:34:03,241 INFO L87 Difference]: Start difference. First operand 284 states and 397 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:03,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:03,337 INFO L93 Difference]: Finished difference Result 475 states and 665 transitions. [2024-11-27 23:34:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:34:03,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-27 23:34:03,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:03,340 INFO L225 Difference]: With dead ends: 475 [2024-11-27 23:34:03,340 INFO L226 Difference]: Without dead ends: 290 [2024-11-27 23:34:03,340 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:34:03,341 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:03,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 535 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:34:03,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-27 23:34:03,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2024-11-27 23:34:03,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 243 states have (on average 1.3127572016460904) internal successors, (319), 244 states have internal predecessors, (319), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-27 23:34:03,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 403 transitions. [2024-11-27 23:34:03,396 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 403 transitions. Word has length 160 [2024-11-27 23:34:03,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:03,397 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 403 transitions. [2024-11-27 23:34:03,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:03,397 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 403 transitions. [2024-11-27 23:34:03,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:34:03,399 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:03,399 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:03,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-27 23:34:03,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:34:03,601 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:03,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:03,601 INFO L85 PathProgramCache]: Analyzing trace with hash -642059954, now seen corresponding path program 1 times [2024-11-27 23:34:03,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:34:03,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143404013] [2024-11-27 23:34:03,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:03,602 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 [2024-11-27 23:34:03,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:34:03,604 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:34:03,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:34:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:04,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-27 23:34:04,031 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:04,036 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 [2024-11-27 23:34:04,200 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 41 treesize of output 19 [2024-11-27 23:34:04,312 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 41 treesize of output 19 [2024-11-27 23:34:04,420 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 36 treesize of output 29 [2024-11-27 23:34:05,278 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:05,278 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 57 treesize of output 47 [2024-11-27 23:34:05,813 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:05,813 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 67 treesize of output 60 [2024-11-27 23:34:06,533 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:06,534 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 82 treesize of output 63 [2024-11-27 23:34:07,058 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:07,058 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 82 treesize of output 63 [2024-11-27 23:34:07,982 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:07,982 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 91 treesize of output 81 [2024-11-27 23:34:08,271 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:08,271 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 90 treesize of output 89 [2024-11-27 23:34:08,624 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:08,624 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 100 treesize of output 93 [2024-11-27 23:34:08,702 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:08,702 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 100 treesize of output 93 [2024-11-27 23:34:09,670 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:09,670 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 161 treesize of output 85 [2024-11-27 23:34:09,919 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 563 proven. 84 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-27 23:34:09,919 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:10,663 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:34:10,663 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:34:10,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143404013] [2024-11-27 23:34:10,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143404013] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:10,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:34:10,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [26] total 30 [2024-11-27 23:34:10,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213615959] [2024-11-27 23:34:10,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:10,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:34:10,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:34:10,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:34:10,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=712, Unknown=0, NotChecked=0, Total=870 [2024-11-27 23:34:10,665 INFO L87 Difference]: Start difference. First operand 290 states and 403 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:12,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:12,249 INFO L93 Difference]: Finished difference Result 634 states and 877 transitions. [2024-11-27 23:34:12,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:34:12,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-27 23:34:12,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:12,252 INFO L225 Difference]: With dead ends: 634 [2024-11-27 23:34:12,252 INFO L226 Difference]: Without dead ends: 443 [2024-11-27 23:34:12,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 287 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=176, Invalid=880, Unknown=0, NotChecked=0, Total=1056 [2024-11-27 23:34:12,254 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 145 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:12,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 642 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 23:34:12,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-27 23:34:12,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 434. [2024-11-27 23:34:12,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 379 states have (on average 1.3324538258575198) internal successors, (505), 382 states have internal predecessors, (505), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-27 23:34:12,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 601 transitions. [2024-11-27 23:34:12,324 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 601 transitions. Word has length 160 [2024-11-27 23:34:12,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:12,324 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 601 transitions. [2024-11-27 23:34:12,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:12,325 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 601 transitions. [2024-11-27 23:34:12,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:34:12,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:12,327 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:12,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:34:12,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:34:12,528 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:12,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:12,528 INFO L85 PathProgramCache]: Analyzing trace with hash -2082808520, now seen corresponding path program 1 times [2024-11-27 23:34:12,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:34:12,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018710672] [2024-11-27 23:34:12,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:12,529 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 [2024-11-27 23:34:12,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:34:12,531 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:34:12,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:34:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:12,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-27 23:34:12,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:12,987 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 [2024-11-27 23:34:13,055 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 15 [2024-11-27 23:34:13,125 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 25 [2024-11-27 23:34:13,537 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:13,538 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 52 treesize of output 33 [2024-11-27 23:34:13,740 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:13,740 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 47 treesize of output 43 [2024-11-27 23:34:14,078 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:14,079 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 62 treesize of output 46 [2024-11-27 23:34:14,387 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:14,387 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 62 treesize of output 46 [2024-11-27 23:34:14,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:14,823 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 62 treesize of output 46 [2024-11-27 23:34:15,066 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:15,067 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 62 treesize of output 46 [2024-11-27 23:34:15,696 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:15,696 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 68 treesize of output 61 [2024-11-27 23:34:15,899 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:15,900 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 85 treesize of output 90 [2024-11-27 23:34:16,185 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:16,185 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 95 treesize of output 94 [2024-11-27 23:34:16,235 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:16,235 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 95 treesize of output 94 [2024-11-27 23:34:16,576 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:16,577 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 51 [2024-11-27 23:34:16,667 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 475 proven. 81 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-27 23:34:16,668 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:17,145 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:34:17,145 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:34:17,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018710672] [2024-11-27 23:34:17,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018710672] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:17,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:34:17,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 24 [2024-11-27 23:34:17,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951479262] [2024-11-27 23:34:17,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:17,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:34:17,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:34:17,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:34:17,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:34:17,147 INFO L87 Difference]: Start difference. First operand 434 states and 601 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:18,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:18,269 INFO L93 Difference]: Finished difference Result 881 states and 1210 transitions. [2024-11-27 23:34:18,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:34:18,270 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-27 23:34:18,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:18,275 INFO L225 Difference]: With dead ends: 881 [2024-11-27 23:34:18,275 INFO L226 Difference]: Without dead ends: 567 [2024-11-27 23:34:18,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 295 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2024-11-27 23:34:18,280 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 156 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:18,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 471 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:34:18,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-27 23:34:18,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 484. [2024-11-27 23:34:18,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 429 states have (on average 1.3403263403263403) internal successors, (575), 432 states have internal predecessors, (575), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-27 23:34:18,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 671 transitions. [2024-11-27 23:34:18,357 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 671 transitions. Word has length 160 [2024-11-27 23:34:18,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:18,358 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 671 transitions. [2024-11-27 23:34:18,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:18,358 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 671 transitions. [2024-11-27 23:34:18,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:34:18,360 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:18,361 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:18,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:34:18,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:34:18,561 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:18,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:18,562 INFO L85 PathProgramCache]: Analyzing trace with hash 218014070, now seen corresponding path program 1 times [2024-11-27 23:34:18,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:34:18,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333980314] [2024-11-27 23:34:18,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:18,563 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 [2024-11-27 23:34:18,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:34:18,565 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:34:18,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:34:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:18,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:34:18,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:18,954 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:18,955 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 41 treesize of output 17 [2024-11-27 23:34:19,003 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:34:19,003 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:34:19,003 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:34:19,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333980314] [2024-11-27 23:34:19,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333980314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:19,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:19,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:34:19,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331723403] [2024-11-27 23:34:19,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:19,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:34:19,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:34:19,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:34:19,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:34:19,005 INFO L87 Difference]: Start difference. First operand 484 states and 671 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:19,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:19,912 INFO L93 Difference]: Finished difference Result 1017 states and 1382 transitions. [2024-11-27 23:34:19,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:34:19,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-27 23:34:19,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:19,918 INFO L225 Difference]: With dead ends: 1017 [2024-11-27 23:34:19,918 INFO L226 Difference]: Without dead ends: 670 [2024-11-27 23:34:19,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:34:19,920 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 46 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:19,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 443 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:34:19,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-27 23:34:20,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 494. [2024-11-27 23:34:20,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 439 states have (on average 1.3371298405466971) internal successors, (587), 442 states have internal predecessors, (587), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-27 23:34:20,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 683 transitions. [2024-11-27 23:34:20,011 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 683 transitions. Word has length 160 [2024-11-27 23:34:20,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:20,011 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 683 transitions. [2024-11-27 23:34:20,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:20,012 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 683 transitions. [2024-11-27 23:34:20,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:34:20,014 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:20,014 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:20,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:34:20,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:34:20,215 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:20,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:20,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1061849608, now seen corresponding path program 1 times [2024-11-27 23:34:20,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:34:20,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076519009] [2024-11-27 23:34:20,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:20,217 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 [2024-11-27 23:34:20,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:34:20,219 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:34:20,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:34:20,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:20,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-27 23:34:20,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:20,789 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 [2024-11-27 23:34:20,858 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 15 [2024-11-27 23:34:21,101 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:21,102 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 [2024-11-27 23:34:21,340 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:21,340 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 [2024-11-27 23:34:21,524 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:21,524 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 47 treesize of output 52 [2024-11-27 23:34:21,846 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:21,847 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 57 treesize of output 65 [2024-11-27 23:34:22,251 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:22,251 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 72 treesize of output 68 [2024-11-27 23:34:22,734 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:22,735 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 67 treesize of output 78 [2024-11-27 23:34:23,217 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:23,217 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 82 treesize of output 81 [2024-11-27 23:34:23,982 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:23,982 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 87 treesize of output 95 [2024-11-27 23:34:24,219 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:24,219 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 120 treesize of output 119 [2024-11-27 23:34:24,491 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:24,491 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 130 treesize of output 123 [2024-11-27 23:34:24,550 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:24,550 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 130 treesize of output 123 [2024-11-27 23:34:24,696 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:24,696 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 131 treesize of output 61 [2024-11-27 23:34:24,783 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 577 proven. 87 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-27 23:34:24,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:25,143 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:34:25,143 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:34:25,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076519009] [2024-11-27 23:34:25,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076519009] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:25,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:34:25,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 22 [2024-11-27 23:34:25,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404217971] [2024-11-27 23:34:25,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:25,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:34:25,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:34:25,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:34:25,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:34:25,145 INFO L87 Difference]: Start difference. First operand 494 states and 683 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:25,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:25,785 INFO L93 Difference]: Finished difference Result 940 states and 1284 transitions. [2024-11-27 23:34:25,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:34:25,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-27 23:34:25,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:25,790 INFO L225 Difference]: With dead ends: 940 [2024-11-27 23:34:25,790 INFO L226 Difference]: Without dead ends: 583 [2024-11-27 23:34:25,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:34:25,792 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 108 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:25,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 316 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:34:25,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-27 23:34:25,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 494. [2024-11-27 23:34:25,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 439 states have (on average 1.328018223234624) internal successors, (583), 442 states have internal predecessors, (583), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-27 23:34:25,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 679 transitions. [2024-11-27 23:34:25,875 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 679 transitions. Word has length 160 [2024-11-27 23:34:25,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:25,876 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 679 transitions. [2024-11-27 23:34:25,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:25,876 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 679 transitions. [2024-11-27 23:34:25,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:34:25,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:25,878 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:25,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-27 23:34:26,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:34:26,078 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:26,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:26,079 INFO L85 PathProgramCache]: Analyzing trace with hash -501511344, now seen corresponding path program 1 times [2024-11-27 23:34:26,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:34:26,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372096882] [2024-11-27 23:34:26,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:26,079 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 [2024-11-27 23:34:26,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:34:26,081 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:34:26,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:34:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:26,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 23:34:26,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:26,502 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 [2024-11-27 23:34:26,560 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 15 [2024-11-27 23:34:26,609 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 15 [2024-11-27 23:34:26,661 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 25 [2024-11-27 23:34:26,883 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:26,884 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 36 treesize of output 38 [2024-11-27 23:34:27,175 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:27,176 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 51 treesize of output 41 [2024-11-27 23:34:27,483 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:27,484 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 48 treesize of output 53 [2024-11-27 23:34:27,879 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:27,879 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 62 treesize of output 55 [2024-11-27 23:34:27,908 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:27,908 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 62 treesize of output 55 [2024-11-27 23:34:28,130 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 529 proven. 30 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-27 23:34:28,130 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:28,385 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:34:28,385 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:34:28,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372096882] [2024-11-27 23:34:28,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372096882] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:28,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:34:28,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 14 [2024-11-27 23:34:28,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150343216] [2024-11-27 23:34:28,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:28,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:34:28,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:34:28,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:34:28,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:34:28,387 INFO L87 Difference]: Start difference. First operand 494 states and 679 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:29,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:29,057 INFO L93 Difference]: Finished difference Result 860 states and 1176 transitions. [2024-11-27 23:34:29,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:34:29,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-27 23:34:29,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:29,061 INFO L225 Difference]: With dead ends: 860 [2024-11-27 23:34:29,061 INFO L226 Difference]: Without dead ends: 503 [2024-11-27 23:34:29,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:34:29,063 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 104 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:29,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 434 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:34:29,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-11-27 23:34:29,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 500. [2024-11-27 23:34:29,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 440 states have (on average 1.3181818181818181) internal successors, (580), 443 states have internal predecessors, (580), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-27 23:34:29,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 684 transitions. [2024-11-27 23:34:29,160 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 684 transitions. Word has length 160 [2024-11-27 23:34:29,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:29,161 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 684 transitions. [2024-11-27 23:34:29,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:29,161 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 684 transitions. [2024-11-27 23:34:29,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:34:29,163 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:29,163 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:29,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-27 23:34:29,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:34:29,364 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:29,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:29,365 INFO L85 PathProgramCache]: Analyzing trace with hash 657390742, now seen corresponding path program 1 times [2024-11-27 23:34:29,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:34:29,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707582932] [2024-11-27 23:34:29,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:29,365 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 [2024-11-27 23:34:29,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:34:29,367 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:34:29,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-27 23:34:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:29,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:34:29,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:29,870 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:29,870 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 41 treesize of output 17 [2024-11-27 23:34:29,942 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:34:29,942 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:34:29,942 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:34:29,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707582932] [2024-11-27 23:34:29,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [707582932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:29,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:29,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:34:29,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089154780] [2024-11-27 23:34:29,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:29,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:34:29,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:34:29,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:34:29,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:34:29,944 INFO L87 Difference]: Start difference. First operand 500 states and 684 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:31,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:31,200 INFO L93 Difference]: Finished difference Result 1045 states and 1403 transitions. [2024-11-27 23:34:31,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:34:31,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-27 23:34:31,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:31,209 INFO L225 Difference]: With dead ends: 1045 [2024-11-27 23:34:31,209 INFO L226 Difference]: Without dead ends: 664 [2024-11-27 23:34:31,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:34:31,212 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 63 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:31,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 451 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:34:31,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2024-11-27 23:34:31,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 494. [2024-11-27 23:34:31,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 434 states have (on average 1.3179723502304148) internal successors, (572), 437 states have internal predecessors, (572), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-27 23:34:31,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 676 transitions. [2024-11-27 23:34:31,330 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 676 transitions. Word has length 160 [2024-11-27 23:34:31,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:31,331 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 676 transitions. [2024-11-27 23:34:31,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:31,331 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 676 transitions. [2024-11-27 23:34:31,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:34:31,333 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:31,333 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:31,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-27 23:34:31,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:34:31,537 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:31,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:31,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1714348520, now seen corresponding path program 1 times [2024-11-27 23:34:31,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:34:31,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850803008] [2024-11-27 23:34:31,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:31,538 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 [2024-11-27 23:34:31,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:34:31,540 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:34:31,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:34:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:32,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-27 23:34:32,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:32,039 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 [2024-11-27 23:34:32,102 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 25 [2024-11-27 23:34:32,450 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:32,451 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 47 treesize of output 43 [2024-11-27 23:34:32,756 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:32,757 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 62 treesize of output 46 [2024-11-27 23:34:33,058 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:33,058 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 62 treesize of output 46 [2024-11-27 23:34:33,351 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:33,351 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 62 treesize of output 46 [2024-11-27 23:34:33,649 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:33,649 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 62 treesize of output 46 [2024-11-27 23:34:33,987 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:33,987 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 57 treesize of output 56 [2024-11-27 23:34:34,342 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:34,342 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 54 [2024-11-27 23:34:34,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:34,910 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 78 treesize of output 74 [2024-11-27 23:34:35,109 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:35,110 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 111 treesize of output 107 [2024-11-27 23:34:35,354 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:35,355 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 126 treesize of output 110 [2024-11-27 23:34:35,582 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:35,582 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 126 treesize of output 110 [2024-11-27 23:34:35,720 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:35,720 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 127 treesize of output 57 [2024-11-27 23:34:35,824 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 425 proven. 87 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-27 23:34:35,824 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:36,159 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:34:36,159 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:34:36,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850803008] [2024-11-27 23:34:36,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850803008] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:36,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:34:36,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [18] total 21 [2024-11-27 23:34:36,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410550416] [2024-11-27 23:34:36,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:36,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:34:36,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:34:36,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:34:36,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:34:36,161 INFO L87 Difference]: Start difference. First operand 494 states and 676 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:36,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:36,908 INFO L93 Difference]: Finished difference Result 929 states and 1252 transitions. [2024-11-27 23:34:36,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:34:36,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-27 23:34:36,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:36,912 INFO L225 Difference]: With dead ends: 929 [2024-11-27 23:34:36,912 INFO L226 Difference]: Without dead ends: 572 [2024-11-27 23:34:36,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 295 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:34:36,915 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 54 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:36,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 442 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:34:36,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-27 23:34:36,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 486. [2024-11-27 23:34:36,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 426 states have (on average 1.3051643192488263) internal successors, (556), 429 states have internal predecessors, (556), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-27 23:34:36,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 660 transitions. [2024-11-27 23:34:36,997 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 660 transitions. Word has length 160 [2024-11-27 23:34:36,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:36,998 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 660 transitions. [2024-11-27 23:34:36,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:36,998 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 660 transitions. [2024-11-27 23:34:37,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:34:37,001 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:37,002 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:37,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:34:37,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:34:37,202 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:37,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:37,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1039217354, now seen corresponding path program 1 times [2024-11-27 23:34:37,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:34:37,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125588806] [2024-11-27 23:34:37,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:37,204 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 [2024-11-27 23:34:37,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:34:37,208 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:34:37,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:34:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:37,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-27 23:34:37,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:37,734 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 [2024-11-27 23:34:37,824 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 25 [2024-11-27 23:34:38,217 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:38,217 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 52 treesize of output 33 [2024-11-27 23:34:38,441 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:38,441 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 47 treesize of output 43 [2024-11-27 23:34:38,757 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:38,758 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 51 treesize of output 41 [2024-11-27 23:34:38,998 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:38,999 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 46 treesize of output 51 [2024-11-27 23:34:39,546 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:39,546 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 54 [2024-11-27 23:34:39,847 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:39,848 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 54 [2024-11-27 23:34:40,577 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:40,577 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 67 treesize of output 69 [2024-11-27 23:34:40,783 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:40,783 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 100 treesize of output 93 [2024-11-27 23:34:41,058 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:41,058 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 105 treesize of output 98 [2024-11-27 23:34:41,117 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:41,117 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 105 treesize of output 98 [2024-11-27 23:34:41,585 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:41,585 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 107 treesize of output 55 [2024-11-27 23:34:41,711 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 551 proven. 75 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-27 23:34:41,712 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:42,286 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:34:42,286 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:34:42,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125588806] [2024-11-27 23:34:42,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125588806] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:42,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:34:42,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [20] total 25 [2024-11-27 23:34:42,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746010966] [2024-11-27 23:34:42,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:42,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:34:42,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:34:42,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:34:42,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2024-11-27 23:34:42,288 INFO L87 Difference]: Start difference. First operand 486 states and 660 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:43,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:43,489 INFO L93 Difference]: Finished difference Result 931 states and 1244 transitions. [2024-11-27 23:34:43,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:34:43,490 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-27 23:34:43,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:43,494 INFO L225 Difference]: With dead ends: 931 [2024-11-27 23:34:43,494 INFO L226 Difference]: Without dead ends: 582 [2024-11-27 23:34:43,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 294 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2024-11-27 23:34:43,496 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 142 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:43,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 603 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:34:43,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-27 23:34:43,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 578. [2024-11-27 23:34:43,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 506 states have (on average 1.2826086956521738) internal successors, (649), 511 states have internal predecessors, (649), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 23:34:43,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 769 transitions. [2024-11-27 23:34:43,618 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 769 transitions. Word has length 160 [2024-11-27 23:34:43,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:43,618 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 769 transitions. [2024-11-27 23:34:43,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:43,619 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 769 transitions. [2024-11-27 23:34:43,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 23:34:43,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:43,620 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:43,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-27 23:34:43,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:34:43,822 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:43,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:43,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1574974333, now seen corresponding path program 1 times [2024-11-27 23:34:43,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:34:43,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382393810] [2024-11-27 23:34:43,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:43,824 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 [2024-11-27 23:34:43,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:34:43,827 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:34:43,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:34:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:44,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-27 23:34:44,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:44,346 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 [2024-11-27 23:34:44,352 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 [2024-11-27 23:34:44,357 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 [2024-11-27 23:34:44,448 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 [2024-11-27 23:34:44,527 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 [2024-11-27 23:34:44,607 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 [2024-11-27 23:34:44,684 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 [2024-11-27 23:34:44,758 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 [2024-11-27 23:34:44,849 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 [2024-11-27 23:34:45,015 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:45,015 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 [2024-11-27 23:34:45,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:45,377 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 [2024-11-27 23:34:45,469 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:45,470 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 85 treesize of output 93 [2024-11-27 23:34:45,606 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:45,607 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 100 treesize of output 96 [2024-11-27 23:34:45,645 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:45,645 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 100 treesize of output 96 [2024-11-27 23:34:46,021 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:46,022 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 110 treesize of output 48 [2024-11-27 23:34:46,258 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 412 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2024-11-27 23:34:46,258 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:34:46,258 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:34:46,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1382393810] [2024-11-27 23:34:46,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1382393810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:46,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:46,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-27 23:34:46,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945200369] [2024-11-27 23:34:46,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:46,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:34:46,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:34:46,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:34:46,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:34:46,260 INFO L87 Difference]: Start difference. First operand 578 states and 769 transitions. Second operand has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:34:52,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:52,151 INFO L93 Difference]: Finished difference Result 1131 states and 1492 transitions. [2024-11-27 23:34:52,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:34:52,152 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2024-11-27 23:34:52,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:52,154 INFO L225 Difference]: With dead ends: 1131 [2024-11-27 23:34:52,154 INFO L226 Difference]: Without dead ends: 690 [2024-11-27 23:34:52,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:34:52,156 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 260 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:52,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 682 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-27 23:34:52,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-27 23:34:52,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 605. [2024-11-27 23:34:52,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 533 states have (on average 1.2870544090056286) internal successors, (686), 538 states have internal predecessors, (686), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 23:34:52,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 806 transitions. [2024-11-27 23:34:52,282 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 806 transitions. Word has length 162 [2024-11-27 23:34:52,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:52,283 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 806 transitions. [2024-11-27 23:34:52,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:34:52,283 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 806 transitions. [2024-11-27 23:34:52,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 23:34:52,285 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:52,285 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:52,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-11-27 23:34:52,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:34:52,486 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:52,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:52,486 INFO L85 PathProgramCache]: Analyzing trace with hash 295110655, now seen corresponding path program 1 times [2024-11-27 23:34:52,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:34:52,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1595279803] [2024-11-27 23:34:52,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:52,487 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 [2024-11-27 23:34:52,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:34:52,489 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:34:52,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:34:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:52,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:34:52,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:52,929 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:52,930 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 40 treesize of output 16 [2024-11-27 23:34:52,964 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:34:52,964 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:34:52,964 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:34:52,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1595279803] [2024-11-27 23:34:52,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1595279803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:52,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:52,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:34:52,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232831954] [2024-11-27 23:34:52,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:52,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:34:52,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:34:52,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:34:52,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:34:52,966 INFO L87 Difference]: Start difference. First operand 605 states and 806 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:53,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:53,805 INFO L93 Difference]: Finished difference Result 1210 states and 1588 transitions. [2024-11-27 23:34:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:34:53,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-27 23:34:53,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:53,810 INFO L225 Difference]: With dead ends: 1210 [2024-11-27 23:34:53,811 INFO L226 Difference]: Without dead ends: 753 [2024-11-27 23:34:53,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:34:53,813 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 44 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:53,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 422 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:34:53,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-27 23:34:53,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 599. [2024-11-27 23:34:53,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 527 states have (on average 1.2808349146110056) internal successors, (675), 532 states have internal predecessors, (675), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 23:34:53,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 795 transitions. [2024-11-27 23:34:53,949 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 795 transitions. Word has length 162 [2024-11-27 23:34:53,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:53,950 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 795 transitions. [2024-11-27 23:34:53,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:34:53,950 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 795 transitions. [2024-11-27 23:34:53,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 23:34:53,952 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:53,952 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:53,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:34:54,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:34:54,153 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:54,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:54,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1715522943, now seen corresponding path program 1 times [2024-11-27 23:34:54,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:34:54,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2051551892] [2024-11-27 23:34:54,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:54,155 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 [2024-11-27 23:34:54,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:34:54,158 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:34:54,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:34:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:54,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-27 23:34:54,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:54,692 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 [2024-11-27 23:34:54,772 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 [2024-11-27 23:34:54,903 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:54,903 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 [2024-11-27 23:34:55,022 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:55,022 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 35 treesize of output 37 [2024-11-27 23:34:55,228 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:55,228 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 45 treesize of output 50 [2024-11-27 23:34:55,494 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:55,494 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 60 treesize of output 53 [2024-11-27 23:34:55,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:55,716 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 55 treesize of output 63 [2024-11-27 23:34:56,056 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:56,057 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 70 treesize of output 66 [2024-11-27 23:34:56,479 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:56,479 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 65 treesize of output 76 [2024-11-27 23:34:56,901 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:56,901 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 80 treesize of output 79 [2024-11-27 23:34:57,724 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:57,725 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 94 [2024-11-27 23:34:58,007 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:58,007 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 97 treesize of output 99 [2024-11-27 23:34:58,062 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:58,063 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 97 treesize of output 99 [2024-11-27 23:34:58,528 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:34:58,529 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 107 treesize of output 51 [2024-11-27 23:34:58,832 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-27 23:34:58,832 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:34:58,833 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:34:58,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2051551892] [2024-11-27 23:34:58,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2051551892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:58,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:58,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-27 23:34:58,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255241167] [2024-11-27 23:34:58,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:58,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 23:34:58,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:34:58,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 23:34:58,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:34:58,835 INFO L87 Difference]: Start difference. First operand 599 states and 795 transitions. Second operand has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 17 states have internal predecessors, (80), 6 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-27 23:35:04,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:04,594 INFO L93 Difference]: Finished difference Result 1133 states and 1490 transitions. [2024-11-27 23:35:04,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:35:04,595 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 17 states have internal predecessors, (80), 6 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 162 [2024-11-27 23:35:04,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:04,599 INFO L225 Difference]: With dead ends: 1133 [2024-11-27 23:35:04,599 INFO L226 Difference]: Without dead ends: 682 [2024-11-27 23:35:04,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:35:04,602 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 212 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:04,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 717 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-27 23:35:04,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-27 23:35:04,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 618. [2024-11-27 23:35:04,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 546 states have (on average 1.283882783882784) internal successors, (701), 551 states have internal predecessors, (701), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 23:35:04,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 821 transitions. [2024-11-27 23:35:04,756 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 821 transitions. Word has length 162 [2024-11-27 23:35:04,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:04,757 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 821 transitions. [2024-11-27 23:35:04,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 17 states have internal predecessors, (80), 6 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-27 23:35:04,758 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 821 transitions. [2024-11-27 23:35:04,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 23:35:04,759 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:04,759 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:04,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:35:04,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:35:04,960 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:35:04,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:04,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1333789569, now seen corresponding path program 1 times [2024-11-27 23:35:04,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:35:04,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821726782] [2024-11-27 23:35:04,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:04,961 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 [2024-11-27 23:35:04,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:35:04,966 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:35:04,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:35:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:05,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:35:05,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:35:05,414 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:05,414 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 40 treesize of output 16 [2024-11-27 23:35:05,448 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:35:05,448 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:35:05,449 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:35:05,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1821726782] [2024-11-27 23:35:05,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1821726782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:05,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:05,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:35:05,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265281156] [2024-11-27 23:35:05,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:05,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:35:05,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:35:05,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:35:05,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:35:05,451 INFO L87 Difference]: Start difference. First operand 618 states and 821 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:35:06,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:06,790 INFO L93 Difference]: Finished difference Result 1131 states and 1484 transitions. [2024-11-27 23:35:06,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:35:06,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-27 23:35:06,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:06,795 INFO L225 Difference]: With dead ends: 1131 [2024-11-27 23:35:06,795 INFO L226 Difference]: Without dead ends: 650 [2024-11-27 23:35:06,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:35:06,797 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 59 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:06,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 400 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:35:06,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-11-27 23:35:06,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 576. [2024-11-27 23:35:06,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 504 states have (on average 1.2718253968253967) internal successors, (641), 509 states have internal predecessors, (641), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 23:35:06,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 761 transitions. [2024-11-27 23:35:06,957 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 761 transitions. Word has length 162 [2024-11-27 23:35:06,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:06,958 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 761 transitions. [2024-11-27 23:35:06,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:35:06,958 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 761 transitions. [2024-11-27 23:35:06,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 23:35:06,959 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:06,960 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:06,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-27 23:35:07,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:35:07,160 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:35:07,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:07,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1586754338, now seen corresponding path program 1 times [2024-11-27 23:35:07,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:35:07,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635780183] [2024-11-27 23:35:07,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:07,161 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 [2024-11-27 23:35:07,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:35:07,164 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:35:07,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:35:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:07,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:35:07,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:35:07,619 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:35:07,619 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:35:07,619 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:35:07,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635780183] [2024-11-27 23:35:07,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [635780183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:07,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:07,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:35:07,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760209582] [2024-11-27 23:35:07,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:07,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:35:07,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:35:07,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:35:07,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:35:07,621 INFO L87 Difference]: Start difference. First operand 576 states and 761 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:35:07,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:07,748 INFO L93 Difference]: Finished difference Result 1033 states and 1357 transitions. [2024-11-27 23:35:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:35:07,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-27 23:35:07,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:07,752 INFO L225 Difference]: With dead ends: 1033 [2024-11-27 23:35:07,753 INFO L226 Difference]: Without dead ends: 594 [2024-11-27 23:35:07,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:35:07,755 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:07,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 535 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:35:07,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-11-27 23:35:07,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2024-11-27 23:35:07,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 522 states have (on average 1.2624521072796935) internal successors, (659), 527 states have internal predecessors, (659), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 23:35:07,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 779 transitions. [2024-11-27 23:35:07,876 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 779 transitions. Word has length 162 [2024-11-27 23:35:07,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:07,878 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 779 transitions. [2024-11-27 23:35:07,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:35:07,879 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 779 transitions. [2024-11-27 23:35:07,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 23:35:07,880 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:07,880 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:07,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:35:08,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:35:08,081 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:35:08,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:08,082 INFO L85 PathProgramCache]: Analyzing trace with hash -38071043, now seen corresponding path program 1 times [2024-11-27 23:35:08,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:35:08,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41261893] [2024-11-27 23:35:08,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:08,082 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 [2024-11-27 23:35:08,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:35:08,084 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:35:08,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:35:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:08,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-27 23:35:08,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:35:08,639 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 [2024-11-27 23:35:08,718 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 [2024-11-27 23:35:08,777 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 [2024-11-27 23:35:08,835 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 [2024-11-27 23:35:08,968 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:08,968 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 [2024-11-27 23:35:09,115 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:09,115 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 35 treesize of output 37 [2024-11-27 23:35:09,339 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:09,340 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 50 treesize of output 40 [2024-11-27 23:35:09,508 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:09,508 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 45 treesize of output 50 [2024-11-27 23:35:09,878 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:09,878 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 55 treesize of output 63 [2024-11-27 23:35:10,197 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:10,197 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 70 treesize of output 66 [2024-11-27 23:35:10,977 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:10,978 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 82 treesize of output 90 [2024-11-27 23:35:11,180 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:11,180 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 110 treesize of output 115 [2024-11-27 23:35:11,426 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:11,426 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 120 treesize of output 119 [2024-11-27 23:35:11,483 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:11,483 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 120 treesize of output 119 [2024-11-27 23:35:12,025 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:12,025 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 130 treesize of output 62 [2024-11-27 23:35:12,335 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 628 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-27 23:35:12,335 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:35:12,335 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:35:12,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41261893] [2024-11-27 23:35:12,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41261893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:12,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:12,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-27 23:35:12,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347606186] [2024-11-27 23:35:12,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:12,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 23:35:12,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:35:12,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 23:35:12,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:35:12,338 INFO L87 Difference]: Start difference. First operand 594 states and 779 transitions. Second operand has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 5 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-11-27 23:35:18,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:18,812 INFO L93 Difference]: Finished difference Result 1125 states and 1457 transitions. [2024-11-27 23:35:18,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:35:18,813 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 5 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 162 [2024-11-27 23:35:18,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:18,817 INFO L225 Difference]: With dead ends: 1125 [2024-11-27 23:35:18,817 INFO L226 Difference]: Without dead ends: 668 [2024-11-27 23:35:18,818 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:35:18,820 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 300 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:18,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 748 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-27 23:35:18,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-27 23:35:18,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 595. [2024-11-27 23:35:18,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 523 states have (on average 1.2619502868068833) internal successors, (660), 528 states have internal predecessors, (660), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 23:35:18,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 780 transitions. [2024-11-27 23:35:18,990 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 780 transitions. Word has length 162 [2024-11-27 23:35:18,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:18,990 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 780 transitions. [2024-11-27 23:35:18,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 5 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-11-27 23:35:18,991 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 780 transitions. [2024-11-27 23:35:18,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 23:35:18,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:18,993 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:19,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:35:19,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:35:19,193 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:35:19,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:19,194 INFO L85 PathProgramCache]: Analyzing trace with hash 102477567, now seen corresponding path program 1 times [2024-11-27 23:35:19,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:35:19,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651778558] [2024-11-27 23:35:19,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:19,195 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 [2024-11-27 23:35:19,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:35:19,200 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:35:19,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-27 23:35:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:19,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-27 23:35:19,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:35:19,784 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 [2024-11-27 23:35:19,788 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 [2024-11-27 23:35:19,791 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 [2024-11-27 23:35:19,858 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 [2024-11-27 23:35:19,993 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:19,993 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 [2024-11-27 23:35:20,111 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:20,111 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 [2024-11-27 23:35:20,231 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:20,231 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 [2024-11-27 23:35:20,351 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:20,351 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 [2024-11-27 23:35:20,523 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:20,523 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 [2024-11-27 23:35:20,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:20,644 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 [2024-11-27 23:35:20,971 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:20,972 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 51 [2024-11-27 23:35:21,092 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:21,092 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 67 treesize of output 54 [2024-11-27 23:35:21,118 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:21,118 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 67 treesize of output 54 [2024-11-27 23:35:21,351 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:21,352 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 77 treesize of output 33 [2024-11-27 23:35:21,548 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-27 23:35:21,548 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:35:21,548 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:35:21,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651778558] [2024-11-27 23:35:21,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651778558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:21,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:21,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 23:35:21,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302372879] [2024-11-27 23:35:21,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:21,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:35:21,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:35:21,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:35:21,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:35:21,550 INFO L87 Difference]: Start difference. First operand 595 states and 780 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:35:25,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:25,767 INFO L93 Difference]: Finished difference Result 1126 states and 1459 transitions. [2024-11-27 23:35:25,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:35:25,768 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2024-11-27 23:35:25,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:25,772 INFO L225 Difference]: With dead ends: 1126 [2024-11-27 23:35:25,772 INFO L226 Difference]: Without dead ends: 668 [2024-11-27 23:35:25,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:35:25,775 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 182 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:25,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 729 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-27 23:35:25,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-27 23:35:25,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 596. [2024-11-27 23:35:25,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 524 states have (on average 1.2614503816793894) internal successors, (661), 529 states have internal predecessors, (661), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 23:35:25,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 781 transitions. [2024-11-27 23:35:25,946 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 781 transitions. Word has length 162 [2024-11-27 23:35:25,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:25,946 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 781 transitions. [2024-11-27 23:35:25,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-27 23:35:25,947 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 781 transitions. [2024-11-27 23:35:25,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 23:35:25,948 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:25,949 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:25,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-11-27 23:35:26,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:35:26,150 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:35:26,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:26,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1731578697, now seen corresponding path program 1 times [2024-11-27 23:35:26,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:35:26,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [657085035] [2024-11-27 23:35:26,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:26,151 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 [2024-11-27 23:35:26,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:35:26,155 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:35:26,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:35:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:26,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 23:35:26,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:35:26,707 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 [2024-11-27 23:35:26,876 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 41 treesize of output 19 [2024-11-27 23:35:26,998 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 41 treesize of output 19 [2024-11-27 23:35:27,098 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 29 [2024-11-27 23:35:27,402 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:27,403 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 35 treesize of output 37 [2024-11-27 23:35:27,693 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:27,693 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 50 treesize of output 40 [2024-11-27 23:35:27,996 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:27,996 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 47 treesize of output 52 [2024-11-27 23:35:28,261 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:28,262 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 91 treesize of output 99 [2024-11-27 23:35:28,490 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:28,490 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 106 treesize of output 102 [2024-11-27 23:35:28,637 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:28,637 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 106 treesize of output 102 [2024-11-27 23:35:29,078 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:29,078 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 97 treesize of output 45 [2024-11-27 23:35:29,154 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 569 proven. 30 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-27 23:35:29,154 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:35:29,532 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:35:29,532 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:35:29,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [657085035] [2024-11-27 23:35:29,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [657085035] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:35:29,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:35:29,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-11-27 23:35:29,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314631292] [2024-11-27 23:35:29,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:29,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:35:29,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:35:29,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:35:29,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:35:29,534 INFO L87 Difference]: Start difference. First operand 596 states and 781 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:35:30,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:30,194 INFO L93 Difference]: Finished difference Result 1066 states and 1381 transitions. [2024-11-27 23:35:30,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:35:30,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-27 23:35:30,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:30,197 INFO L225 Difference]: With dead ends: 1066 [2024-11-27 23:35:30,198 INFO L226 Difference]: Without dead ends: 607 [2024-11-27 23:35:30,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 310 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:35:30,199 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 108 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:30,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 281 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:35:30,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-27 23:35:30,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 604. [2024-11-27 23:35:30,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 530 states have (on average 1.2528301886792452) internal successors, (664), 535 states have internal predecessors, (664), 60 states have call successors, (60), 13 states have call predecessors, (60), 13 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 23:35:30,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 784 transitions. [2024-11-27 23:35:30,333 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 784 transitions. Word has length 164 [2024-11-27 23:35:30,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:30,334 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 784 transitions. [2024-11-27 23:35:30,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:35:30,334 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 784 transitions. [2024-11-27 23:35:30,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 23:35:30,336 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:30,336 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:30,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:35:30,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:35:30,537 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:35:30,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:30,537 INFO L85 PathProgramCache]: Analyzing trace with hash -710510343, now seen corresponding path program 1 times [2024-11-27 23:35:30,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:35:30,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018767524] [2024-11-27 23:35:30,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:30,538 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 [2024-11-27 23:35:30,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:35:30,540 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:35:30,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-27 23:35:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:31,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 23:35:31,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:35:31,476 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 [2024-11-27 23:35:31,857 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 77 treesize of output 46 [2024-11-27 23:35:31,968 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:31,968 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 110 treesize of output 88 [2024-11-27 23:35:32,182 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:32,182 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 125 treesize of output 91 [2024-11-27 23:35:32,219 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:32,219 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 176 treesize of output 124 [2024-11-27 23:35:33,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:33,259 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 266 treesize of output 100 [2024-11-27 23:35:33,403 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:35:33,403 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:35:33,898 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:35:33,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018767524] [2024-11-27 23:35:33,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018767524] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:35:33,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1167004105] [2024-11-27 23:35:33,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:33,898 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:35:33,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:35:33,901 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:35:33,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2024-11-27 23:35:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:35,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-27 23:35:35,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:35:36,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-27 23:35:36,898 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 65 treesize of output 44 [2024-11-27 23:35:37,125 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:37,125 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 92 treesize of output 80 [2024-11-27 23:35:37,433 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:37,433 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 103 treesize of output 83 [2024-11-27 23:35:37,489 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:37,490 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 142 treesize of output 110 [2024-11-27 23:35:38,669 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:38,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 212 treesize of output 100 [2024-11-27 23:35:38,707 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:35:38,707 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:35:39,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1167004105] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:35:39,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:35:39,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2024-11-27 23:35:39,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104931674] [2024-11-27 23:35:39,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:35:39,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 23:35:39,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:35:39,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 23:35:39,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=507, Unknown=0, NotChecked=0, Total=600 [2024-11-27 23:35:39,030 INFO L87 Difference]: Start difference. First operand 604 states and 784 transitions. Second operand has 21 states, 21 states have (on average 6.476190476190476) internal successors, (136), 20 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2024-11-27 23:35:47,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:47,072 INFO L93 Difference]: Finished difference Result 1168 states and 1507 transitions. [2024-11-27 23:35:47,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:35:47,074 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.476190476190476) internal successors, (136), 20 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 164 [2024-11-27 23:35:47,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:47,079 INFO L225 Difference]: With dead ends: 1168 [2024-11-27 23:35:47,079 INFO L226 Difference]: Without dead ends: 1166 [2024-11-27 23:35:47,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 378 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=224, Invalid=966, Unknown=0, NotChecked=0, Total=1190 [2024-11-27 23:35:47,081 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 402 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:47,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 772 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-11-27 23:35:47,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2024-11-27 23:35:47,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 1161. [2024-11-27 23:35:47,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 1034 states have (on average 1.2553191489361701) internal successors, (1298), 1045 states have internal predecessors, (1298), 101 states have call successors, (101), 25 states have call predecessors, (101), 25 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-27 23:35:47,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1500 transitions. [2024-11-27 23:35:47,451 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1500 transitions. Word has length 164 [2024-11-27 23:35:47,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:47,452 INFO L471 AbstractCegarLoop]: Abstraction has 1161 states and 1500 transitions. [2024-11-27 23:35:47,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.476190476190476) internal successors, (136), 20 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2024-11-27 23:35:47,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1500 transitions. [2024-11-27 23:35:47,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 23:35:47,455 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:47,455 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:47,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Ended with exit code 0 [2024-11-27 23:35:47,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2024-11-27 23:35:47,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 23:35:47,856 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:35:47,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:47,856 INFO L85 PathProgramCache]: Analyzing trace with hash -708663301, now seen corresponding path program 1 times [2024-11-27 23:35:47,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:35:47,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328473366] [2024-11-27 23:35:47,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:47,857 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 [2024-11-27 23:35:47,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:35:47,859 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:35:47,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:35:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:48,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 23:35:48,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:35:48,445 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 [2024-11-27 23:35:48,467 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 [2024-11-27 23:35:48,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2024-11-27 23:35:48,621 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:35:48,622 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:35:48,622 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:35:48,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328473366] [2024-11-27 23:35:48,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328473366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:48,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:48,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:35:48,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762923555] [2024-11-27 23:35:48,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:48,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:35:48,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:35:48,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:35:48,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:35:48,624 INFO L87 Difference]: Start difference. First operand 1161 states and 1500 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:35:49,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:49,873 INFO L93 Difference]: Finished difference Result 3143 states and 4038 transitions. [2024-11-27 23:35:49,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:35:49,874 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-27 23:35:49,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:49,883 INFO L225 Difference]: With dead ends: 3143 [2024-11-27 23:35:49,884 INFO L226 Difference]: Without dead ends: 2210 [2024-11-27 23:35:49,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:35:49,886 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 107 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:49,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 744 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:35:49,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2024-11-27 23:35:50,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 1689. [2024-11-27 23:35:50,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1562 states have (on average 1.2740076824583866) internal successors, (1990), 1573 states have internal predecessors, (1990), 101 states have call successors, (101), 25 states have call predecessors, (101), 25 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-27 23:35:50,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2192 transitions. [2024-11-27 23:35:50,281 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2192 transitions. Word has length 164 [2024-11-27 23:35:50,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:50,282 INFO L471 AbstractCegarLoop]: Abstraction has 1689 states and 2192 transitions. [2024-11-27 23:35:50,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:35:50,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2192 transitions. [2024-11-27 23:35:50,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 23:35:50,285 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:50,285 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:50,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:35:50,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:35:50,486 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:35:50,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:50,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1518009927, now seen corresponding path program 1 times [2024-11-27 23:35:50,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:35:50,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999347060] [2024-11-27 23:35:50,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:50,487 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 [2024-11-27 23:35:50,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:35:50,488 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:35:50,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:35:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:51,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 23:35:51,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:35:51,035 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 [2024-11-27 23:35:51,478 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 47 treesize of output 34 [2024-11-27 23:35:51,767 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:51,768 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 [2024-11-27 23:35:52,121 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:52,121 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 [2024-11-27 23:35:52,355 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:52,356 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 [2024-11-27 23:35:52,650 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:52,650 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 [2024-11-27 23:35:52,854 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:52,854 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 70 treesize of output 72 [2024-11-27 23:35:53,095 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:53,096 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 80 treesize of output 76 [2024-11-27 23:35:53,145 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:53,146 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 80 treesize of output 76 [2024-11-27 23:35:53,791 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:53,792 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 71 treesize of output 37 [2024-11-27 23:35:53,850 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 420 proven. 48 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-27 23:35:53,850 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:35:54,078 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:35:54,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999347060] [2024-11-27 23:35:54,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999347060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:35:54,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [642080007] [2024-11-27 23:35:54,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:54,079 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:35:54,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:35:54,081 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:35:54,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2024-11-27 23:35:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:55,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-27 23:35:55,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:35:55,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-27 23:35:56,106 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 34 treesize of output 18 [2024-11-27 23:35:56,239 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 31 treesize of output 26 [2024-11-27 23:35:56,618 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:56,619 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 39 treesize of output 37 [2024-11-27 23:35:56,990 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:56,990 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 50 treesize of output 40 [2024-11-27 23:35:57,269 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:57,269 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 51 treesize of output 52 [2024-11-27 23:35:57,434 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:57,434 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 78 treesize of output 81 [2024-11-27 23:35:57,653 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:57,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 89 treesize of output 84 [2024-11-27 23:35:57,695 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:57,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 89 treesize of output 84 [2024-11-27 23:35:58,246 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:35:58,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 82 treesize of output 46 [2024-11-27 23:35:58,291 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 494 proven. 48 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-27 23:35:58,291 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:35:58,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [642080007] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:35:58,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:35:58,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2024-11-27 23:35:58,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449930236] [2024-11-27 23:35:58,411 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:35:58,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-27 23:35:58,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:35:58,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-27 23:35:58,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=737, Unknown=0, NotChecked=0, Total=870 [2024-11-27 23:35:58,413 INFO L87 Difference]: Start difference. First operand 1689 states and 2192 transitions. Second operand has 28 states, 24 states have (on average 6.25) internal successors, (150), 24 states have internal predecessors, (150), 10 states have call successors, (40), 9 states have call predecessors, (40), 10 states have return successors, (40), 9 states have call predecessors, (40), 10 states have call successors, (40) [2024-11-27 23:36:09,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:09,732 INFO L93 Difference]: Finished difference Result 3184 states and 4059 transitions. [2024-11-27 23:36:09,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-27 23:36:09,733 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 6.25) internal successors, (150), 24 states have internal predecessors, (150), 10 states have call successors, (40), 9 states have call predecessors, (40), 10 states have return successors, (40), 9 states have call predecessors, (40), 10 states have call successors, (40) Word has length 164 [2024-11-27 23:36:09,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:09,737 INFO L225 Difference]: With dead ends: 3184 [2024-11-27 23:36:09,737 INFO L226 Difference]: Without dead ends: 1803 [2024-11-27 23:36:09,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 376 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=733, Invalid=2807, Unknown=0, NotChecked=0, Total=3540 [2024-11-27 23:36:09,739 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 407 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 1620 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:09,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 629 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1620 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-11-27 23:36:09,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2024-11-27 23:36:10,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1749. [2024-11-27 23:36:10,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1607 states have (on average 1.251400124455507) internal successors, (2011), 1618 states have internal predecessors, (2011), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-27 23:36:10,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2213 transitions. [2024-11-27 23:36:10,021 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2213 transitions. Word has length 164 [2024-11-27 23:36:10,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:10,021 INFO L471 AbstractCegarLoop]: Abstraction has 1749 states and 2213 transitions. [2024-11-27 23:36:10,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 6.25) internal successors, (150), 24 states have internal predecessors, (150), 10 states have call successors, (40), 9 states have call predecessors, (40), 10 states have return successors, (40), 9 states have call predecessors, (40), 10 states have call successors, (40) [2024-11-27 23:36:10,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2213 transitions. [2024-11-27 23:36:10,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 23:36:10,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:10,024 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:36:10,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2024-11-27 23:36:10,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:36:10,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:36:10,425 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:36:10,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:10,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1568833127, now seen corresponding path program 1 times [2024-11-27 23:36:10,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:36:10,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863815965] [2024-11-27 23:36:10,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:10,426 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 [2024-11-27 23:36:10,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:36:10,428 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:36:10,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:36:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:10,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:36:10,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:10,854 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:36:10,854 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:36:10,854 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:36:10,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863815965] [2024-11-27 23:36:10,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863815965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:36:10,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:36:10,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:36:10,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992748539] [2024-11-27 23:36:10,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:36:10,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:36:10,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:36:10,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:36:10,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:36:10,856 INFO L87 Difference]: Start difference. First operand 1749 states and 2213 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:36:11,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:11,208 INFO L93 Difference]: Finished difference Result 3266 states and 4108 transitions. [2024-11-27 23:36:11,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:36:11,208 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-27 23:36:11,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:11,215 INFO L225 Difference]: With dead ends: 3266 [2024-11-27 23:36:11,215 INFO L226 Difference]: Without dead ends: 1845 [2024-11-27 23:36:11,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:36:11,218 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:11,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 659 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:36:11,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2024-11-27 23:36:11,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1773. [2024-11-27 23:36:11,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1631 states have (on average 1.2477007970570202) internal successors, (2035), 1642 states have internal predecessors, (2035), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-27 23:36:11,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2237 transitions. [2024-11-27 23:36:11,613 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2237 transitions. Word has length 164 [2024-11-27 23:36:11,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:11,614 INFO L471 AbstractCegarLoop]: Abstraction has 1773 states and 2237 transitions. [2024-11-27 23:36:11,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:36:11,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2237 transitions. [2024-11-27 23:36:11,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 23:36:11,618 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:11,618 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:36:11,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-27 23:36:11,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:36:11,819 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:36:11,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:11,819 INFO L85 PathProgramCache]: Analyzing trace with hash 867768549, now seen corresponding path program 1 times [2024-11-27 23:36:11,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:36:11,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797121273] [2024-11-27 23:36:11,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:11,820 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 [2024-11-27 23:36:11,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:36:11,822 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:36:11,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:36:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:12,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:36:12,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:12,360 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:12,360 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 [2024-11-27 23:36:12,413 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:36:12,414 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:36:12,414 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:36:12,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797121273] [2024-11-27 23:36:12,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [797121273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:36:12,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:36:12,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:36:12,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117565348] [2024-11-27 23:36:12,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:36:12,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:36:12,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:36:12,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:36:12,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:36:12,416 INFO L87 Difference]: Start difference. First operand 1773 states and 2237 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:36:14,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:14,865 INFO L93 Difference]: Finished difference Result 4403 states and 5417 transitions. [2024-11-27 23:36:14,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:36:14,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-27 23:36:14,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:14,875 INFO L225 Difference]: With dead ends: 4403 [2024-11-27 23:36:14,875 INFO L226 Difference]: Without dead ends: 2958 [2024-11-27 23:36:14,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:36:14,878 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 101 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:14,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 288 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 23:36:14,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2024-11-27 23:36:15,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2325. [2024-11-27 23:36:15,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2325 states, 2183 states have (on average 1.2253779202931745) internal successors, (2675), 2194 states have internal predecessors, (2675), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-27 23:36:15,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 2877 transitions. [2024-11-27 23:36:15,328 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 2877 transitions. Word has length 164 [2024-11-27 23:36:15,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:15,328 INFO L471 AbstractCegarLoop]: Abstraction has 2325 states and 2877 transitions. [2024-11-27 23:36:15,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:36:15,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 2877 transitions. [2024-11-27 23:36:15,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 23:36:15,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:15,331 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:36:15,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-27 23:36:15,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:36:15,531 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:36:15,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:15,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1214564733, now seen corresponding path program 1 times [2024-11-27 23:36:15,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:36:15,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224290672] [2024-11-27 23:36:15,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:15,532 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 [2024-11-27 23:36:15,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:36:15,534 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:36:15,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:36:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:15,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 23:36:15,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:16,005 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 [2024-11-27 23:36:16,218 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 30 [2024-11-27 23:36:16,448 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:16,448 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 47 treesize of output 43 [2024-11-27 23:36:16,847 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:16,847 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 62 treesize of output 46 [2024-11-27 23:36:17,079 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:17,079 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 62 treesize of output 46 [2024-11-27 23:36:17,325 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:17,325 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 59 treesize of output 58 [2024-11-27 23:36:17,448 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:17,449 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 92 treesize of output 91 [2024-11-27 23:36:17,598 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:17,598 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 98 treesize of output 46 [2024-11-27 23:36:17,656 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 458 proven. 48 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-27 23:36:17,656 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:36:17,791 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:36:17,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224290672] [2024-11-27 23:36:17,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224290672] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:17,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1755863204] [2024-11-27 23:36:17,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:17,792 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:36:17,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:36:17,794 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:36:17,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2024-11-27 23:36:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:18,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-27 23:36:18,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:19,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-27 23:36:19,922 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 22 [2024-11-27 23:36:20,113 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 39 treesize of output 30 [2024-11-27 23:36:20,598 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:20,598 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 47 treesize of output 41 [2024-11-27 23:36:20,991 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:20,991 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 40 treesize of output 34 [2024-11-27 23:36:21,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:21,377 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 41 treesize of output 46 [2024-11-27 23:36:21,549 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:21,549 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 68 treesize of output 75 [2024-11-27 23:36:21,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:21,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 72 treesize of output 40 [2024-11-27 23:36:21,799 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 504 proven. 48 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-27 23:36:21,799 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:36:21,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1755863204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:21,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:36:21,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 29 [2024-11-27 23:36:21,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557554865] [2024-11-27 23:36:21,856 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:36:21,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-27 23:36:21,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:36:21,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-27 23:36:21,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=765, Unknown=0, NotChecked=0, Total=930 [2024-11-27 23:36:21,858 INFO L87 Difference]: Start difference. First operand 2325 states and 2877 transitions. Second operand has 29 states, 25 states have (on average 5.36) internal successors, (134), 25 states have internal predecessors, (134), 11 states have call successors, (40), 10 states have call predecessors, (40), 11 states have return successors, (40), 10 states have call predecessors, (40), 11 states have call successors, (40) [2024-11-27 23:36:32,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:32,963 INFO L93 Difference]: Finished difference Result 3608 states and 4425 transitions. [2024-11-27 23:36:32,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-27 23:36:32,964 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 5.36) internal successors, (134), 25 states have internal predecessors, (134), 11 states have call successors, (40), 10 states have call predecessors, (40), 11 states have return successors, (40), 10 states have call predecessors, (40), 11 states have call successors, (40) Word has length 164 [2024-11-27 23:36:32,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:32,971 INFO L225 Difference]: With dead ends: 3608 [2024-11-27 23:36:32,972 INFO L226 Difference]: Without dead ends: 1563 [2024-11-27 23:36:32,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 375 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=631, Invalid=2125, Unknown=0, NotChecked=0, Total=2756 [2024-11-27 23:36:32,975 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 558 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:32,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 524 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-11-27 23:36:32,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2024-11-27 23:36:33,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1509. [2024-11-27 23:36:33,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1367 states have (on average 1.1814191660570592) internal successors, (1615), 1378 states have internal predecessors, (1615), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-27 23:36:33,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1817 transitions. [2024-11-27 23:36:33,468 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1817 transitions. Word has length 164 [2024-11-27 23:36:33,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:33,469 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 1817 transitions. [2024-11-27 23:36:33,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 5.36) internal successors, (134), 25 states have internal predecessors, (134), 11 states have call successors, (40), 10 states have call predecessors, (40), 11 states have return successors, (40), 10 states have call predecessors, (40), 11 states have call successors, (40) [2024-11-27 23:36:33,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1817 transitions. [2024-11-27 23:36:33,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 23:36:33,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:33,471 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:36:33,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 [2024-11-27 23:36:33,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2024-11-27 23:36:33,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 23:36:33,872 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:36:33,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:33,872 INFO L85 PathProgramCache]: Analyzing trace with hash -345375303, now seen corresponding path program 1 times [2024-11-27 23:36:33,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:36:33,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637890800] [2024-11-27 23:36:33,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:33,873 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 [2024-11-27 23:36:33,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:36:33,874 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:36:33,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-11-27 23:36:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:34,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-27 23:36:34,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:34,655 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 [2024-11-27 23:36:34,973 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 77 treesize of output 46 [2024-11-27 23:36:35,075 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:35,075 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 92 treesize of output 49 [2024-11-27 23:36:35,094 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:35,095 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 143 treesize of output 82 [2024-11-27 23:36:35,597 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:35,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 233 treesize of output 85 [2024-11-27 23:36:35,695 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:36:35,695 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:36:36,096 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:36:36,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637890800] [2024-11-27 23:36:36,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637890800] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:36,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [15481898] [2024-11-27 23:36:36,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:36,097 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:36:36,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:36:36,099 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:36:36,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2024-11-27 23:36:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:37,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 23:36:37,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:38,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-27 23:36:39,003 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 65 treesize of output 44 [2024-11-27 23:36:39,199 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:39,199 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 76 treesize of output 47 [2024-11-27 23:36:39,241 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:39,241 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 115 treesize of output 74 [2024-11-27 23:36:39,952 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:39,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 185 treesize of output 85 [2024-11-27 23:36:39,977 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:36:39,977 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:36:40,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [15481898] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:40,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:36:40,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2024-11-27 23:36:40,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595800464] [2024-11-27 23:36:40,240 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:36:40,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 23:36:40,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:36:40,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 23:36:40,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:36:40,241 INFO L87 Difference]: Start difference. First operand 1509 states and 1817 transitions. Second operand has 19 states, 19 states have (on average 7.157894736842105) internal successors, (136), 18 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2024-11-27 23:36:44,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:36:49,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:49,314 INFO L93 Difference]: Finished difference Result 1523 states and 1832 transitions. [2024-11-27 23:36:49,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:36:49,315 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.157894736842105) internal successors, (136), 18 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 164 [2024-11-27 23:36:49,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:49,320 INFO L225 Difference]: With dead ends: 1523 [2024-11-27 23:36:49,320 INFO L226 Difference]: Without dead ends: 1521 [2024-11-27 23:36:49,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=183, Invalid=809, Unknown=0, NotChecked=0, Total=992 [2024-11-27 23:36:49,321 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 377 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:49,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 697 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-11-27 23:36:49,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2024-11-27 23:36:49,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1518. [2024-11-27 23:36:49,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1376 states have (on average 1.180232558139535) internal successors, (1624), 1387 states have internal predecessors, (1624), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-27 23:36:49,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1826 transitions. [2024-11-27 23:36:49,661 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1826 transitions. Word has length 164 [2024-11-27 23:36:49,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:49,661 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 1826 transitions. [2024-11-27 23:36:49,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.157894736842105) internal successors, (136), 18 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2024-11-27 23:36:49,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1826 transitions. [2024-11-27 23:36:49,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 23:36:49,663 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:49,663 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:36:49,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2024-11-27 23:36:49,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2024-11-27 23:36:50,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 23:36:50,064 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:36:50,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:50,064 INFO L85 PathProgramCache]: Analyzing trace with hash 182975995, now seen corresponding path program 1 times [2024-11-27 23:36:50,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:36:50,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457405592] [2024-11-27 23:36:50,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:50,065 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 [2024-11-27 23:36:50,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:36:50,067 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:36:50,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2024-11-27 23:36:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:50,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:36:50,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:50,541 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 23:36:50,541 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:36:50,541 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:36:50,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457405592] [2024-11-27 23:36:50,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457405592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:36:50,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:36:50,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:36:50,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10454389] [2024-11-27 23:36:50,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:36:50,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:36:50,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:36:50,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:36:50,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:36:50,543 INFO L87 Difference]: Start difference. First operand 1518 states and 1826 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 23:36:50,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:50,920 INFO L93 Difference]: Finished difference Result 2857 states and 3434 transitions. [2024-11-27 23:36:50,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:36:50,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 164 [2024-11-27 23:36:50,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:50,925 INFO L225 Difference]: With dead ends: 2857 [2024-11-27 23:36:50,925 INFO L226 Difference]: Without dead ends: 1518 [2024-11-27 23:36:50,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:36:50,928 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:50,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 403 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:36:50,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2024-11-27 23:36:51,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1518. [2024-11-27 23:36:51,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1376 states have (on average 1.1787790697674418) internal successors, (1622), 1387 states have internal predecessors, (1622), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-27 23:36:51,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1824 transitions. [2024-11-27 23:36:51,262 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1824 transitions. Word has length 164 [2024-11-27 23:36:51,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:51,262 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 1824 transitions. [2024-11-27 23:36:51,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 23:36:51,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1824 transitions. [2024-11-27 23:36:51,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-27 23:36:51,263 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:51,263 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:36:51,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2024-11-27 23:36:51,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:36:51,464 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:36:51,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:51,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1860551738, now seen corresponding path program 1 times [2024-11-27 23:36:51,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:36:51,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886335802] [2024-11-27 23:36:51,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:51,465 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 [2024-11-27 23:36:51,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:36:51,467 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:36:51,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2024-11-27 23:36:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:52,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-27 23:36:52,262 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:52,271 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 [2024-11-27 23:36:52,521 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 41 treesize of output 19 [2024-11-27 23:36:52,946 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:52,947 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 52 treesize of output 33 [2024-11-27 23:36:53,155 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:53,155 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 52 treesize of output 33 [2024-11-27 23:36:53,384 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:53,384 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 49 treesize of output 45 [2024-11-27 23:36:53,490 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:53,490 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 71 treesize of output 82 [2024-11-27 23:36:53,641 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:53,642 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 86 treesize of output 85 [2024-11-27 23:36:53,681 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:53,681 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 86 treesize of output 85 [2024-11-27 23:36:53,937 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:36:53,937 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 144 treesize of output 140 [2024-11-27 23:36:55,838 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 436 proven. 30 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2024-11-27 23:36:55,838 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:37:01,902 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:37:01,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886335802] [2024-11-27 23:37:01,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886335802] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:37:01,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1176207745] [2024-11-27 23:37:01,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:37:01,902 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:37:01,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:37:01,905 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:37:01,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2024-11-27 23:37:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:37:03,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-27 23:37:03,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:37:03,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-27 23:37:05,420 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 33 treesize of output 17 [2024-11-27 23:37:05,924 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 33 treesize of output 17 [2024-11-27 23:37:06,090 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 33 treesize of output 17 [2024-11-27 23:37:06,267 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 30 treesize of output 25 [2024-11-27 23:37:08,503 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:37:08,503 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 38 treesize of output 36 [2024-11-27 23:37:11,221 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:37:11,221 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 58 treesize of output 44 [2024-11-27 23:37:12,005 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:37:12,005 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 58 treesize of output 44 [2024-11-27 23:37:12,920 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:37:12,920 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 59 treesize of output 56 [2024-11-27 23:37:13,428 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:37:13,429 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 77 treesize of output 80 [2024-11-27 23:37:14,057 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:37:14,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 78 [2024-11-27 23:37:14,651 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:37:14,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 78 [2024-11-27 23:37:15,384 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:37:15,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 127 treesize of output 127 [2024-11-27 23:37:23,102 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 584 proven. 66 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-27 23:37:23,102 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:37:52,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1176207745] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:37:52,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:37:52,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 22] total 37 [2024-11-27 23:37:52,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068712409] [2024-11-27 23:37:52,597 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:37:52,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-27 23:37:52,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:37:52,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-27 23:37:52,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=1820, Unknown=0, NotChecked=0, Total=2162 [2024-11-27 23:37:52,599 INFO L87 Difference]: Start difference. First operand 1518 states and 1824 transitions. Second operand has 37 states, 32 states have (on average 4.71875) internal successors, (151), 35 states have internal predecessors, (151), 14 states have call successors, (40), 11 states have call predecessors, (40), 14 states have return successors, (40), 9 states have call predecessors, (40), 14 states have call successors, (40) [2024-11-27 23:38:47,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:39:07,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:39:09,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:39:13,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:39:15,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:39:15,947 INFO L93 Difference]: Finished difference Result 3243 states and 3834 transitions. [2024-11-27 23:39:15,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-27 23:39:15,951 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 32 states have (on average 4.71875) internal successors, (151), 35 states have internal predecessors, (151), 14 states have call successors, (40), 11 states have call predecessors, (40), 14 states have return successors, (40), 9 states have call predecessors, (40), 14 states have call successors, (40) Word has length 165 [2024-11-27 23:39:15,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:39:15,963 INFO L225 Difference]: With dead ends: 3243 [2024-11-27 23:39:15,963 INFO L226 Difference]: Without dead ends: 1993 [2024-11-27 23:39:15,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 353 SyntacticMatches, 9 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1451 ImplicationChecksByTransitivity, 71.6s TimeCoverageRelationStatistics Valid=939, Invalid=4173, Unknown=0, NotChecked=0, Total=5112 [2024-11-27 23:39:15,967 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 833 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 2064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:39:15,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 837 Invalid, 2064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 57.9s Time] [2024-11-27 23:39:15,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2024-11-27 23:39:16,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1279. [2024-11-27 23:39:16,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1163 states have (on average 1.1891659501289769) internal successors, (1383), 1168 states have internal predecessors, (1383), 73 states have call successors, (73), 42 states have call predecessors, (73), 42 states have return successors, (73), 68 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-27 23:39:16,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1529 transitions. [2024-11-27 23:39:16,236 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1529 transitions. Word has length 165 [2024-11-27 23:39:16,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:39:16,237 INFO L471 AbstractCegarLoop]: Abstraction has 1279 states and 1529 transitions. [2024-11-27 23:39:16,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 32 states have (on average 4.71875) internal successors, (151), 35 states have internal predecessors, (151), 14 states have call successors, (40), 11 states have call predecessors, (40), 14 states have return successors, (40), 9 states have call predecessors, (40), 14 states have call successors, (40) [2024-11-27 23:39:16,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1529 transitions. [2024-11-27 23:39:16,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-27 23:39:16,238 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:39:16,238 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:39:16,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2024-11-27 23:39:16,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2024-11-27 23:39:16,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:39:16,639 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:39:16,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:39:16,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1720003128, now seen corresponding path program 1 times [2024-11-27 23:39:16,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:39:16,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11704189] [2024-11-27 23:39:16,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:16,640 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 [2024-11-27 23:39:16,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:39:16,642 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:39:16,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2024-11-27 23:39:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:17,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:39:17,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:39:18,588 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:39:18,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 28 [2024-11-27 23:39:19,553 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 23:39:19,553 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:39:19,553 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:39:19,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11704189] [2024-11-27 23:39:19,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11704189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:39:19,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:39:19,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:39:19,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541894771] [2024-11-27 23:39:19,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:39:19,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:39:19,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:39:19,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:39:19,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:39:19,555 INFO L87 Difference]: Start difference. First operand 1279 states and 1529 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:39:21,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:39:25,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:39:27,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:39:29,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:39:37,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:39:42,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:39:44,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:39:48,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:39:54,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:39:58,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:40:03,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:40:06,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:40:06,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:40:06,671 INFO L93 Difference]: Finished difference Result 2677 states and 3187 transitions. [2024-11-27 23:40:06,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:40:06,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 165 [2024-11-27 23:40:06,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:40:06,853 INFO L225 Difference]: With dead ends: 2677 [2024-11-27 23:40:06,853 INFO L226 Difference]: Without dead ends: 1694 [2024-11-27 23:40:06,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:40:06,855 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 44 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:40:06,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 462 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 195 Invalid, 6 Unknown, 0 Unchecked, 46.0s Time] [2024-11-27 23:40:06,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2024-11-27 23:40:07,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1495. [2024-11-27 23:40:07,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1379 states have (on average 1.18854242204496) internal successors, (1639), 1384 states have internal predecessors, (1639), 73 states have call successors, (73), 42 states have call predecessors, (73), 42 states have return successors, (73), 68 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-27 23:40:07,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1785 transitions. [2024-11-27 23:40:07,134 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1785 transitions. Word has length 165 [2024-11-27 23:40:07,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:40:07,134 INFO L471 AbstractCegarLoop]: Abstraction has 1495 states and 1785 transitions. [2024-11-27 23:40:07,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 23:40:07,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1785 transitions. [2024-11-27 23:40:07,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-27 23:40:07,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:40:07,136 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:40:07,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2024-11-27 23:40:07,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 23:40:07,336 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:40:07,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:40:07,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1435979458, now seen corresponding path program 1 times [2024-11-27 23:40:07,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:40:07,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614788127] [2024-11-27 23:40:07,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:40:07,337 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 [2024-11-27 23:40:07,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:40:07,340 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -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) [2024-11-27 23:40:07,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2024-11-27 23:40:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:40:08,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-27 23:40:08,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:40:08,099 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 [2024-11-27 23:40:08,947 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 15 [2024-11-27 23:40:09,502 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 25 [2024-11-27 23:40:10,957 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:40:10,957 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 36 treesize of output 38 [2024-11-27 23:40:13,134 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 51 treesize of output 41 [2024-11-27 23:40:17,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:40:17,171 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 62 treesize of output 55 [2024-11-27 23:40:23,621 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:40:23,621 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 73 treesize of output 69 [2024-11-27 23:40:26,375 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:40:26,376 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 73 treesize of output 69 [2024-11-27 23:40:29,896 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:40:29,897 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 70 treesize of output 81 [2024-11-27 23:40:31,818 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:40:31,818 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 85 treesize of output 84 [2024-11-27 23:40:32,131 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:40:32,131 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 85 treesize of output 84 [2024-11-27 23:40:33,713 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:40:33,714 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 136 treesize of output 138 [2024-11-27 23:40:44,434 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:40:44,434 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 174 treesize of output 80 [2024-11-27 23:40:46,625 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 605 proven. 66 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-27 23:40:46,625 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:41:01,294 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:41:01,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614788127] [2024-11-27 23:41:01,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614788127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:41:01,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [189301900] [2024-11-27 23:41:01,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:41:01,295 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:41:01,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:41:01,297 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:41:01,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1a6850e-0bcd-4370-b8e4-6eab67cc8062/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2024-11-27 23:41:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:41:02,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-27 23:41:02,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:41:04,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-27 23:41:09,831 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 22 treesize of output 21 [2024-11-27 23:41:12,863 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:41:12,863 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 30 treesize of output 32 [2024-11-27 23:41:16,408 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:41:16,408 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 38 treesize of output 43 [2024-11-27 23:41:20,704 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 49 treesize of output 46 [2024-11-27 23:41:30,229 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:41:30,230 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 58 treesize of output 58 [2024-11-27 23:41:42,274 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:41:42,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 64 treesize of output 78 [2024-11-27 23:41:48,251 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:41:48,251 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 75 treesize of output 81 [2024-11-27 23:41:57,376 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:41:57,377 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 86 treesize of output 99 [2024-11-27 23:42:04,440 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:42:04,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 97 treesize of output 102 [2024-11-27 23:42:04,942 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:42:04,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 97 treesize of output 102 [2024-11-27 23:42:05,405 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:42:05,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 106 treesize of output 58 [2024-11-27 23:42:08,727 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 617 proven. 66 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-27 23:42:08,727 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:42:18,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [189301900] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:42:18,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:42:18,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2024-11-27 23:42:18,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157795494] [2024-11-27 23:42:18,455 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:42:18,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-27 23:42:18,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:42:18,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-27 23:42:18,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=373, Invalid=2077, Unknown=0, NotChecked=0, Total=2450 [2024-11-27 23:42:18,458 INFO L87 Difference]: Start difference. First operand 1495 states and 1785 transitions. Second operand has 43 states, 37 states have (on average 4.783783783783784) internal successors, (177), 42 states have internal predecessors, (177), 19 states have call successors, (40), 13 states have call predecessors, (40), 19 states have return successors, (40), 14 states have call predecessors, (40), 19 states have call successors, (40) [2024-11-27 23:42:29,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:42:33,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:43:19,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:43:26,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:43:33,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:43:52,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:44:03,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:44:27,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:44:29,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:44:32,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:44:42,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:45:05,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 23:45:07,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]