./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.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_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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_58608986-5cd4-4843-843a-b0f1b3ebe748/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 e1d78d248c74132bd311292745f8a4e0496a51de00b4b221480ef3ff016a6c65 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:49:49,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:49:50,031 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:49:50,038 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:49:50,039 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:49:50,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:49:50,070 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:49:50,070 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:49:50,071 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:49:50,071 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:49:50,071 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:49:50,071 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:49:50,072 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:49:50,072 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:49:50,072 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:49:50,072 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:49:50,073 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:49:50,073 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:49:50,073 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:49:50,073 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:49:50,073 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:49:50,073 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:49:50,074 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:49:50,074 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:49:50,074 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:49:50,074 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:49:50,074 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:49:50,075 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:49:50,075 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:49:50,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:49:50,075 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:49:50,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:49:50,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:49:50,076 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:49:50,076 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:49:50,076 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:49:50,076 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:49:50,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:49:50,077 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:49:50,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:49:50,077 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:49:50,077 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:49:50,078 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:49:50,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:49:50,078 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:49:50,078 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:49:50,078 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:49:50,078 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:49:50,079 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_58608986-5cd4-4843-843a-b0f1b3ebe748/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 -> e1d78d248c74132bd311292745f8a4e0496a51de00b4b221480ef3ff016a6c65 [2024-11-28 03:49:50,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:49:50,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:49:50,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:49:50,450 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:49:50,450 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:49:50,452 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i [2024-11-28 03:49:55,803 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/data/195c74eb1/0ad4f2de556f4c899e93c9233acd3531/FLAGc667d5476 [2024-11-28 03:49:56,231 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:49:56,232 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i [2024-11-28 03:49:56,247 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/data/195c74eb1/0ad4f2de556f4c899e93c9233acd3531/FLAGc667d5476 [2024-11-28 03:49:56,273 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/data/195c74eb1/0ad4f2de556f4c899e93c9233acd3531 [2024-11-28 03:49:56,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:49:56,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:49:56,284 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:49:56,285 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:49:56,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:49:56,293 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:49:56" (1/1) ... [2024-11-28 03:49:56,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bf5ee0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:56, skipping insertion in model container [2024-11-28 03:49:56,295 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:49:56" (1/1) ... [2024-11-28 03:49:56,332 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:49:56,545 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_58608986-5cd4-4843-843a-b0f1b3ebe748/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i[916,929] [2024-11-28 03:49:56,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:49:56,653 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:49:56,665 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_58608986-5cd4-4843-843a-b0f1b3ebe748/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i[916,929] [2024-11-28 03:49:56,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:49:56,739 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:49:56,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:56 WrapperNode [2024-11-28 03:49:56,740 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:49:56,741 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:49:56,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:49:56,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:49:56,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:56" (1/1) ... [2024-11-28 03:49:56,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:56" (1/1) ... [2024-11-28 03:49:56,836 INFO L138 Inliner]: procedures = 30, calls = 178, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 574 [2024-11-28 03:49:56,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:49:56,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:49:56,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:49:56,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:49:56,850 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:56" (1/1) ... [2024-11-28 03:49:56,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:56" (1/1) ... [2024-11-28 03:49:56,856 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:56" (1/1) ... [2024-11-28 03:49:56,875 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-28 03:49:56,879 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:56" (1/1) ... [2024-11-28 03:49:56,879 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:56" (1/1) ... [2024-11-28 03:49:56,928 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:56" (1/1) ... [2024-11-28 03:49:56,932 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:56" (1/1) ... [2024-11-28 03:49:56,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:56" (1/1) ... [2024-11-28 03:49:56,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:56" (1/1) ... [2024-11-28 03:49:56,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:56" (1/1) ... [2024-11-28 03:49:56,972 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:49:56,973 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:49:56,973 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:49:56,973 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:49:56,974 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:56" (1/1) ... [2024-11-28 03:49:56,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:49:57,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:49:57,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:49:57,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:49:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:49:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-28 03:49:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-28 03:49:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 03:49:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-28 03:49:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-28 03:49:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 03:49:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:49:57,069 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:49:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 03:49:57,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:49:57,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:49:57,281 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:49:57,285 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:49:58,264 INFO L? ?]: Removed 172 outVars from TransFormulas that were not future-live. [2024-11-28 03:49:58,265 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:49:58,286 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:49:58,286 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:49:58,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:49:58 BoogieIcfgContainer [2024-11-28 03:49:58,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:49:58,292 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:49:58,292 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:49:58,298 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:49:58,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:49:56" (1/3) ... [2024-11-28 03:49:58,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d67c272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:49:58, skipping insertion in model container [2024-11-28 03:49:58,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:56" (2/3) ... [2024-11-28 03:49:58,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d67c272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:49:58, skipping insertion in model container [2024-11-28 03:49:58,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:49:58" (3/3) ... [2024-11-28 03:49:58,303 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-28.i [2024-11-28 03:49:58,322 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:49:58,324 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-28.i that has 2 procedures, 123 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:49:58,410 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:49:58,428 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;@27daf7e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:49:58,428 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:49:58,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 106 states have (on average 1.4339622641509433) internal successors, (152), 107 states have internal predecessors, (152), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 03:49:58,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:49:58,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:58,452 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:58,454 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:49:58,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:58,464 INFO L85 PathProgramCache]: Analyzing trace with hash 771826097, now seen corresponding path program 1 times [2024-11-28 03:49:58,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:58,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972790022] [2024-11-28 03:49:58,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:58,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:59,060 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-28 03:49:59,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:59,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972790022] [2024-11-28 03:49:59,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972790022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:49:59,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17630828] [2024-11-28 03:49:59,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:59,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:49:59,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:49:59,065 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:49:59,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:49:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:59,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:49:59,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:49:59,652 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-28 03:49:59,652 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:49:59,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17630828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:59,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:49:59,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:49:59,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58237862] [2024-11-28 03:49:59,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:59,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:49:59,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:59,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:49:59,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:49:59,702 INFO L87 Difference]: Start difference. First operand has 123 states, 106 states have (on average 1.4339622641509433) internal successors, (152), 107 states have internal predecessors, (152), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 03:49:59,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:49:59,760 INFO L93 Difference]: Finished difference Result 239 states and 368 transitions. [2024-11-28 03:49:59,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:49:59,763 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2024-11-28 03:49:59,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:49:59,775 INFO L225 Difference]: With dead ends: 239 [2024-11-28 03:49:59,775 INFO L226 Difference]: Without dead ends: 119 [2024-11-28 03:49:59,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:49:59,784 INFO L435 NwaCegarLoop]: 171 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, 171 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:49:59,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:49:59,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-28 03:49:59,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-28 03:49:59,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 103 states have (on average 1.3883495145631068) internal successors, (143), 103 states have internal predecessors, (143), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 03:49:59,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 171 transitions. [2024-11-28 03:49:59,863 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 171 transitions. Word has length 130 [2024-11-28 03:49:59,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:49:59,864 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 171 transitions. [2024-11-28 03:49:59,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 03:49:59,865 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 171 transitions. [2024-11-28 03:49:59,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:49:59,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:59,870 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:59,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:50:00,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:50:00,071 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:00,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:00,072 INFO L85 PathProgramCache]: Analyzing trace with hash 158855109, now seen corresponding path program 1 times [2024-11-28 03:50:00,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:50:00,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528749602] [2024-11-28 03:50:00,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:00,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:50:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:00,875 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:50:00,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:50:00,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528749602] [2024-11-28 03:50:00,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528749602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:00,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:00,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:50:00,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301749903] [2024-11-28 03:50:00,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:00,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:50:00,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:50:00,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:50:00,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:50:00,881 INFO L87 Difference]: Start difference. First operand 119 states and 171 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:00,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:00,982 INFO L93 Difference]: Finished difference Result 238 states and 343 transitions. [2024-11-28 03:50:00,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:50:00,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 130 [2024-11-28 03:50:00,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:00,988 INFO L225 Difference]: With dead ends: 238 [2024-11-28 03:50:00,988 INFO L226 Difference]: Without dead ends: 122 [2024-11-28 03:50:00,989 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 [2024-11-28 03:50:00,990 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 1 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:00,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 493 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:50:00,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-28 03:50:01,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2024-11-28 03:50:01,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 03:50:01,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 173 transitions. [2024-11-28 03:50:01,017 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 173 transitions. Word has length 130 [2024-11-28 03:50:01,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:01,022 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 173 transitions. [2024-11-28 03:50:01,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:01,023 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 173 transitions. [2024-11-28 03:50:01,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:50:01,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:01,028 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:50:01,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:50:01,028 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:01,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:01,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1933862471, now seen corresponding path program 1 times [2024-11-28 03:50:01,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:50:01,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952869128] [2024-11-28 03:50:01,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:01,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:50:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:01,494 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:50:01,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:50:01,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952869128] [2024-11-28 03:50:01,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952869128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:01,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:01,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:50:01,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453779925] [2024-11-28 03:50:01,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:01,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:50:01,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:50:01,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:50:01,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:50:01,501 INFO L87 Difference]: Start difference. First operand 121 states and 173 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:01,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:01,577 INFO L93 Difference]: Finished difference Result 242 states and 347 transitions. [2024-11-28 03:50:01,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:50:01,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 130 [2024-11-28 03:50:01,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:01,583 INFO L225 Difference]: With dead ends: 242 [2024-11-28 03:50:01,585 INFO L226 Difference]: Without dead ends: 124 [2024-11-28 03:50:01,586 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 [2024-11-28 03:50:01,587 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 1 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:01,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 496 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:50:01,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-28 03:50:01,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2024-11-28 03:50:01,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 03:50:01,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 175 transitions. [2024-11-28 03:50:01,609 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 175 transitions. Word has length 130 [2024-11-28 03:50:01,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:01,612 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 175 transitions. [2024-11-28 03:50:01,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:01,612 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 175 transitions. [2024-11-28 03:50:01,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:50:01,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:01,619 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:50:01,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:50:01,619 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:01,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:01,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1935709513, now seen corresponding path program 1 times [2024-11-28 03:50:01,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:50:01,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103624817] [2024-11-28 03:50:01,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:01,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:50:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:02,882 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:50:02,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:50:02,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103624817] [2024-11-28 03:50:02,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103624817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:02,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:02,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:50:02,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754438567] [2024-11-28 03:50:02,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:02,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:50:02,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:50:02,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:50:02,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:50:02,887 INFO L87 Difference]: Start difference. First operand 123 states and 175 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:03,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:03,544 INFO L93 Difference]: Finished difference Result 321 states and 455 transitions. [2024-11-28 03:50:03,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:50:03,545 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 130 [2024-11-28 03:50:03,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:03,547 INFO L225 Difference]: With dead ends: 321 [2024-11-28 03:50:03,547 INFO L226 Difference]: Without dead ends: 201 [2024-11-28 03:50:03,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:50:03,549 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 91 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:03,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 631 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:50:03,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-28 03:50:03,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198. [2024-11-28 03:50:03,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 179 states have (on average 1.3854748603351956) internal successors, (248), 180 states have internal predecessors, (248), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 03:50:03,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 280 transitions. [2024-11-28 03:50:03,568 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 280 transitions. Word has length 130 [2024-11-28 03:50:03,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:03,569 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 280 transitions. [2024-11-28 03:50:03,569 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:03,569 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 280 transitions. [2024-11-28 03:50:03,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 03:50:03,571 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:03,571 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:50:03,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:50:03,572 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:03,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:03,573 INFO L85 PathProgramCache]: Analyzing trace with hash -374592594, now seen corresponding path program 1 times [2024-11-28 03:50:03,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:50:03,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255792658] [2024-11-28 03:50:03,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:03,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:50:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:06,037 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:50:06,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:50:06,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255792658] [2024-11-28 03:50:06,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255792658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:06,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:06,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:50:06,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908221511] [2024-11-28 03:50:06,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:06,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:50:06,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:50:06,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:50:06,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:50:06,040 INFO L87 Difference]: Start difference. First operand 198 states and 280 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:07,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:07,596 INFO L93 Difference]: Finished difference Result 631 states and 888 transitions. [2024-11-28 03:50:07,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:50:07,598 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 132 [2024-11-28 03:50:07,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:07,602 INFO L225 Difference]: With dead ends: 631 [2024-11-28 03:50:07,602 INFO L226 Difference]: Without dead ends: 436 [2024-11-28 03:50:07,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:50:07,604 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 255 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:07,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 699 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:50:07,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-28 03:50:07,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 372. [2024-11-28 03:50:07,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 345 states have (on average 1.3942028985507247) internal successors, (481), 348 states have internal predecessors, (481), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 03:50:07,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 525 transitions. [2024-11-28 03:50:07,664 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 525 transitions. Word has length 132 [2024-11-28 03:50:07,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:07,665 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 525 transitions. [2024-11-28 03:50:07,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:07,665 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 525 transitions. [2024-11-28 03:50:07,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 03:50:07,669 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:07,669 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:50:07,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:50:07,669 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:07,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:07,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1192241044, now seen corresponding path program 1 times [2024-11-28 03:50:07,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:50:07,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502033116] [2024-11-28 03:50:07,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:07,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:50:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:09,081 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:50:09,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:50:09,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502033116] [2024-11-28 03:50:09,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502033116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:09,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:09,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:50:09,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534554357] [2024-11-28 03:50:09,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:09,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:50:09,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:50:09,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:50:09,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:50:09,083 INFO L87 Difference]: Start difference. First operand 372 states and 525 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:09,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:09,617 INFO L93 Difference]: Finished difference Result 767 states and 1081 transitions. [2024-11-28 03:50:09,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:50:09,620 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 132 [2024-11-28 03:50:09,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:09,623 INFO L225 Difference]: With dead ends: 767 [2024-11-28 03:50:09,623 INFO L226 Difference]: Without dead ends: 398 [2024-11-28 03:50:09,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:50:09,624 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 107 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:09,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 507 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:50:09,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-28 03:50:09,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 372. [2024-11-28 03:50:09,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 345 states have (on average 1.3855072463768117) internal successors, (478), 348 states have internal predecessors, (478), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 03:50:09,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 522 transitions. [2024-11-28 03:50:09,660 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 522 transitions. Word has length 132 [2024-11-28 03:50:09,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:09,661 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 522 transitions. [2024-11-28 03:50:09,661 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:09,662 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 522 transitions. [2024-11-28 03:50:09,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 03:50:09,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:09,664 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:50:09,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:50:09,664 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:09,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:09,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1525223603, now seen corresponding path program 1 times [2024-11-28 03:50:09,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:50:09,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572521009] [2024-11-28 03:50:09,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:09,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:50:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:09,986 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:50:09,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:50:09,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572521009] [2024-11-28 03:50:09,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572521009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:09,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:09,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:50:09,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799156175] [2024-11-28 03:50:09,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:09,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:50:09,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:50:09,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:50:09,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:50:09,990 INFO L87 Difference]: Start difference. First operand 372 states and 522 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:10,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:10,017 INFO L93 Difference]: Finished difference Result 741 states and 1041 transitions. [2024-11-28 03:50:10,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:50:10,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 134 [2024-11-28 03:50:10,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:10,021 INFO L225 Difference]: With dead ends: 741 [2024-11-28 03:50:10,021 INFO L226 Difference]: Without dead ends: 372 [2024-11-28 03:50:10,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:50:10,024 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:10,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 334 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:50:10,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-28 03:50:10,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2024-11-28 03:50:10,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 345 states have (on average 1.3710144927536232) internal successors, (473), 348 states have internal predecessors, (473), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 03:50:10,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 517 transitions. [2024-11-28 03:50:10,056 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 517 transitions. Word has length 134 [2024-11-28 03:50:10,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:10,057 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 517 transitions. [2024-11-28 03:50:10,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:10,057 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 517 transitions. [2024-11-28 03:50:10,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 03:50:10,059 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:10,059 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:50:10,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:50:10,060 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:10,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:10,060 INFO L85 PathProgramCache]: Analyzing trace with hash -468921103, now seen corresponding path program 1 times [2024-11-28 03:50:10,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:50:10,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521208550] [2024-11-28 03:50:10,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:10,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:50:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:50:10,204 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:50:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:50:10,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:50:10,413 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:50:10,414 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:50:10,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:50:10,420 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:50:10,486 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:50:10,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:50:10 BoogieIcfgContainer [2024-11-28 03:50:10,490 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:50:10,491 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:50:10,494 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:50:10,495 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:50:10,496 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:49:58" (3/4) ... [2024-11-28 03:50:10,499 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:50:10,501 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:50:10,503 INFO L158 Benchmark]: Toolchain (without parser) took 14222.18ms. Allocated memory was 117.4MB in the beginning and 427.8MB in the end (delta: 310.4MB). Free memory was 93.5MB in the beginning and 265.1MB in the end (delta: -171.6MB). Peak memory consumption was 136.9MB. Max. memory is 16.1GB. [2024-11-28 03:50:10,505 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:50:10,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.21ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 75.9MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:50:10,506 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.88ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 72.0MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:50:10,506 INFO L158 Benchmark]: Boogie Preprocessor took 134.32ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 68.3MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:50:10,507 INFO L158 Benchmark]: RCFGBuilder took 1315.06ms. Allocated memory is still 117.4MB. Free memory was 68.0MB in the beginning and 85.4MB in the end (delta: -17.4MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2024-11-28 03:50:10,508 INFO L158 Benchmark]: TraceAbstraction took 12198.79ms. Allocated memory was 117.4MB in the beginning and 427.8MB in the end (delta: 310.4MB). Free memory was 84.8MB in the beginning and 265.1MB in the end (delta: -180.3MB). Peak memory consumption was 130.4MB. Max. memory is 16.1GB. [2024-11-28 03:50:10,509 INFO L158 Benchmark]: Witness Printer took 10.35ms. Allocated memory is still 427.8MB. Free memory was 265.1MB in the beginning and 265.1MB in the end (delta: 56.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:50:10,512 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 456.21ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 75.9MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.88ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 72.0MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 134.32ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 68.3MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1315.06ms. Allocated memory is still 117.4MB. Free memory was 68.0MB in the beginning and 85.4MB in the end (delta: -17.4MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. * TraceAbstraction took 12198.79ms. Allocated memory was 117.4MB in the beginning and 427.8MB in the end (delta: 310.4MB). Free memory was 84.8MB in the beginning and 265.1MB in the end (delta: -180.3MB). Peak memory consumption was 130.4MB. Max. memory is 16.1GB. * Witness Printer took 10.35ms. Allocated memory is still 427.8MB. Free memory was 265.1MB in the beginning and 265.1MB in the end (delta: 56.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 94, overapproximation of someBinaryFLOATComparisonOperation at line 81, overapproximation of someBinaryFLOATComparisonOperation at line 96, overapproximation of someBinaryFLOATComparisonOperation at line 64, overapproximation of someBinaryFLOATComparisonOperation at line 81, overapproximation of someBinaryFLOATComparisonOperation at line 83, overapproximation of someBinaryFLOATComparisonOperation at line 83, overapproximation of someBinaryFLOATComparisonOperation at line 67, overapproximation of someBinaryFLOATComparisonOperation at line 107, overapproximation of someBinaryFLOATComparisonOperation at line 62, overapproximation of someBinaryFLOATComparisonOperation at line 94, overapproximation of someBinaryFLOATComparisonOperation at line 96. Possible FailurePath: [L39] unsigned char isInitial = 0; [L40-L56] struct WrapperStruct00 WrapperStruct00 = { 1, 63.75, 255.75, 10, 4, -10, 4.75, 99.5, 255.9, 24.85, -2, 1629954775, 1928642731, 0, 5 }; VAL [WrapperStruct00={4:0}, isInitial=0] [L111] isInitial = 1 [L112] FCALL initially() [L114] FCALL updateLastVariables() [L115] CALL updateVariables() [L80] WrapperStruct00.var_1_2 = __VERIFIER_nondet_float() [L81] EXPR WrapperStruct00.var_1_2 [L81] EXPR WrapperStruct00.var_1_2 >= 0.0F && WrapperStruct00.var_1_2 <= -1.0e-20F [L81] EXPR WrapperStruct00.var_1_2 [L81] EXPR WrapperStruct00.var_1_2 >= 0.0F && WrapperStruct00.var_1_2 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L81] EXPR (WrapperStruct00.var_1_2 >= 0.0F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L81] CALL assume_abort_if_not((WrapperStruct00.var_1_2 >= 0.0F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L81] RET assume_abort_if_not((WrapperStruct00.var_1_2 >= 0.0F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L82] WrapperStruct00.var_1_3 = __VERIFIER_nondet_float() [L83] EXPR WrapperStruct00.var_1_3 [L83] EXPR WrapperStruct00.var_1_3 >= 0.0F && WrapperStruct00.var_1_3 <= -1.0e-20F [L83] EXPR WrapperStruct00.var_1_3 [L83] EXPR WrapperStruct00.var_1_3 >= 0.0F && WrapperStruct00.var_1_3 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L83] EXPR (WrapperStruct00.var_1_3 >= 0.0F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L83] CALL assume_abort_if_not((WrapperStruct00.var_1_3 >= 0.0F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L83] RET assume_abort_if_not((WrapperStruct00.var_1_3 >= 0.0F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L84] WrapperStruct00.var_1_5 = __VERIFIER_nondet_char() [L85] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1] [L85] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= -1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L85] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= -1) VAL [WrapperStruct00={4:0}, isInitial=1] [L86] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1] [L86] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L86] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1] [L87] WrapperStruct00.var_1_6 = __VERIFIER_nondet_char() [L88] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1] [L88] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L88] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L89] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1] [L89] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L89] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1] [L90] WrapperStruct00.var_1_7 = __VERIFIER_nondet_char() [L91] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= -127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= -127) VAL [WrapperStruct00={4:0}, isInitial=1] [L92] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1] [L93] WrapperStruct00.var_1_9 = __VERIFIER_nondet_float() [L94] EXPR WrapperStruct00.var_1_9 [L94] EXPR WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F [L94] EXPR WrapperStruct00.var_1_9 [L94] EXPR WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L94] EXPR (WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L94] CALL assume_abort_if_not((WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L94] RET assume_abort_if_not((WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L95] WrapperStruct00.var_1_10 = __VERIFIER_nondet_float() [L96] EXPR WrapperStruct00.var_1_10 [L96] EXPR WrapperStruct00.var_1_10 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F [L96] EXPR WrapperStruct00.var_1_10 [L96] EXPR WrapperStruct00.var_1_10 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L96] EXPR (WrapperStruct00.var_1_10 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L96] CALL assume_abort_if_not((WrapperStruct00.var_1_10 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L96] RET assume_abort_if_not((WrapperStruct00.var_1_10 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L97] WrapperStruct00.var_1_13 = __VERIFIER_nondet_long() [L98] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_13 >= 1073741822) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L98] RET assume_abort_if_not(WrapperStruct00.var_1_13 >= 1073741822) VAL [WrapperStruct00={4:0}, isInitial=1] [L99] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_13 <= 2147483646) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L99] RET assume_abort_if_not(WrapperStruct00.var_1_13 <= 2147483646) VAL [WrapperStruct00={4:0}, isInitial=1] [L100] WrapperStruct00.var_1_15 = __VERIFIER_nondet_long() [L101] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_15 >= 1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L101] RET assume_abort_if_not(WrapperStruct00.var_1_15 >= 1073741823) VAL [WrapperStruct00={4:0}, isInitial=1] [L102] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_15 <= 2147483646) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L102] RET assume_abort_if_not(WrapperStruct00.var_1_15 <= 2147483646) VAL [WrapperStruct00={4:0}, isInitial=1] [L115] RET updateVariables() [L116] CALL step() [L60] signed long int stepLocal_0 = -4; [L61] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_0=-4] [L61] COND TRUE stepLocal_0 < WrapperStruct00.var_1_6 [L62] EXPR WrapperStruct00.var_1_9 [L62] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L62] EXPR ((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10) [L62] EXPR WrapperStruct00.var_1_9 [L62] EXPR ((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10) VAL [WrapperStruct00={4:0}, isInitial=1] [L62] WrapperStruct00.var_1_8 = ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))) [L64] EXPR WrapperStruct00.var_1_9 [L64] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L64] EXPR ((WrapperStruct00.var_1_9) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10) [L64] EXPR WrapperStruct00.var_1_10 [L64] EXPR ((WrapperStruct00.var_1_9) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10) VAL [WrapperStruct00={4:0}, isInitial=1] [L64] WrapperStruct00.var_1_11 = ((((WrapperStruct00.var_1_9) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))) [L65] EXPR WrapperStruct00.var_1_5 [L65] WrapperStruct00.var_1_18 = WrapperStruct00.var_1_5 [L66] EXPR WrapperStruct00.var_1_6 [L66] WrapperStruct00.var_1_19 = WrapperStruct00.var_1_6 [L67] EXPR WrapperStruct00.var_1_2 [L67] EXPR WrapperStruct00.var_1_3 [L67] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L67] COND TRUE (WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8) [L68] EXPR WrapperStruct00.var_1_5 [L68] EXPR WrapperStruct00.var_1_6 [L68] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L68] EXPR (((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7) [L68] EXPR WrapperStruct00.var_1_5 [L68] EXPR WrapperStruct00.var_1_6 [L68] EXPR (((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7) VAL [WrapperStruct00={4:0}, isInitial=1] [L68] WrapperStruct00.var_1_1 = (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))) [L72] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1] [L72] EXPR WrapperStruct00.var_1_6 | 5 VAL [WrapperStruct00={4:0}, isInitial=1] [L72] signed long int stepLocal_1 = WrapperStruct00.var_1_6 | 5; [L73] EXPR WrapperStruct00.var_1_5 [L73] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_1=5] [L73] EXPR ((WrapperStruct00.var_1_5) > (WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_7) [L73] EXPR WrapperStruct00.var_1_5 [L73] EXPR ((WrapperStruct00.var_1_5) > (WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_7) VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_1=5] [L73] COND FALSE !(stepLocal_1 <= ((((WrapperStruct00.var_1_5) > (WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_7)))) [L76] EXPR WrapperStruct00.var_1_6 [L76] EXPR WrapperStruct00.var_1_19 [L76] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1] [L76] EXPR ((WrapperStruct00.var_1_19) < (WrapperStruct00.var_1_19)) ? (WrapperStruct00.var_1_19) : (WrapperStruct00.var_1_19) [L76] EXPR WrapperStruct00.var_1_19 [L76] EXPR ((WrapperStruct00.var_1_19) < (WrapperStruct00.var_1_19)) ? (WrapperStruct00.var_1_19) : (WrapperStruct00.var_1_19) VAL [WrapperStruct00={4:0}, isInitial=1] [L76] EXPR WrapperStruct00.var_1_19 [L76] WrapperStruct00.var_1_12 = (WrapperStruct00.var_1_6 + (((((WrapperStruct00.var_1_19) < (WrapperStruct00.var_1_19)) ? (WrapperStruct00.var_1_19) : (WrapperStruct00.var_1_19))) - WrapperStruct00.var_1_19)) [L116] RET step() [L117] CALL, EXPR property() [L107] EXPR WrapperStruct00.var_1_2 [L107] EXPR WrapperStruct00.var_1_3 [L107] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L107] EXPR ((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_1 == ((signed char) (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) [L107] EXPR WrapperStruct00.var_1_1 [L107] EXPR WrapperStruct00.var_1_5 [L107] EXPR ((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_1 == ((signed char) (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) VAL [WrapperStruct00={4:0}, isInitial=1] [L107] EXPR (((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_1 == ((signed char) (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5))) && ((-4 < WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L107] EXPR ((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_1 == ((signed char) (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5))) && ((-4 < WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1)) && (WrapperStruct00.var_1_11 == ((float) ((((WrapperStruct00.var_1_9) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) VAL [WrapperStruct00={4:0}, isInitial=1] [L107] EXPR (((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_1 == ((signed char) (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5))) && ((-4 < WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1)) && (WrapperStruct00.var_1_11 == ((float) ((((WrapperStruct00.var_1_9) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10)))))) && (((WrapperStruct00.var_1_6 | 5) <= ((((WrapperStruct00.var_1_5) > (WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_7)))) ? (WrapperStruct00.var_1_12 == ((signed long int) (((((WrapperStruct00.var_1_6) < ((WrapperStruct00.var_1_13 - WrapperStruct00.var_1_19))) ? (WrapperStruct00.var_1_6) : ((WrapperStruct00.var_1_13 - WrapperStruct00.var_1_19)))) - (WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_5) < 0 ) ? -(WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_5))))))) : (WrapperStruct00.var_1_12 == ((signed long int) (WrapperStruct00.var_1_6 + (((((WrapperStruct00.var_1_19) < (WrapperStruct00.var_1_19)) ? (WrapperStruct00.var_1_19) : (WrapperStruct00.var_1_19))) - WrapperStruct00.var_1_19))))) VAL [WrapperStruct00={4:0}, isInitial=1] [L107] EXPR ((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_1 == ((signed char) (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5))) && ((-4 < WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1)) && (WrapperStruct00.var_1_11 == ((float) ((((WrapperStruct00.var_1_9) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10)))))) && (((WrapperStruct00.var_1_6 | 5) <= ((((WrapperStruct00.var_1_5) > (WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_7)))) ? (WrapperStruct00.var_1_12 == ((signed long int) (((((WrapperStruct00.var_1_6) < ((WrapperStruct00.var_1_13 - WrapperStruct00.var_1_19))) ? (WrapperStruct00.var_1_6) : ((WrapperStruct00.var_1_13 - WrapperStruct00.var_1_19)))) - (WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_5) < 0 ) ? -(WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_5))))))) : (WrapperStruct00.var_1_12 == ((signed long int) (WrapperStruct00.var_1_6 + (((((WrapperStruct00.var_1_19) < (WrapperStruct00.var_1_19)) ? (WrapperStruct00.var_1_19) : (WrapperStruct00.var_1_19))) - WrapperStruct00.var_1_19)))))) && (WrapperStruct00.var_1_18 == ((signed short int) WrapperStruct00.var_1_5)) VAL [WrapperStruct00={4:0}, isInitial=1] [L107] EXPR (((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_1 == ((signed char) (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5))) && ((-4 < WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1)) && (WrapperStruct00.var_1_11 == ((float) ((((WrapperStruct00.var_1_9) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10)))))) && (((WrapperStruct00.var_1_6 | 5) <= ((((WrapperStruct00.var_1_5) > (WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_7)))) ? (WrapperStruct00.var_1_12 == ((signed long int) (((((WrapperStruct00.var_1_6) < ((WrapperStruct00.var_1_13 - WrapperStruct00.var_1_19))) ? (WrapperStruct00.var_1_6) : ((WrapperStruct00.var_1_13 - WrapperStruct00.var_1_19)))) - (WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_5) < 0 ) ? -(WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_5))))))) : (WrapperStruct00.var_1_12 == ((signed long int) (WrapperStruct00.var_1_6 + (((((WrapperStruct00.var_1_19) < (WrapperStruct00.var_1_19)) ? (WrapperStruct00.var_1_19) : (WrapperStruct00.var_1_19))) - WrapperStruct00.var_1_19)))))) && (WrapperStruct00.var_1_18 == ((signed short int) WrapperStruct00.var_1_5))) && (WrapperStruct00.var_1_19 == ((unsigned short int) WrapperStruct00.var_1_6)) VAL [WrapperStruct00={4:0}, isInitial=1] [L107-L108] return (((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_1 == ((signed char) (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5))) && ((-4 < WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1)) && (WrapperStruct00.var_1_11 == ((float) ((((WrapperStruct00.var_1_9) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10)))))) && (((WrapperStruct00.var_1_6 | 5) <= ((((WrapperStruct00.var_1_5) > (WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_7)))) ? (WrapperStruct00.var_1_12 == ((signed long int) (((((WrapperStruct00.var_1_6) < ((WrapperStruct00.var_1_13 - WrapperStruct00.var_1_19))) ? (WrapperStruct00.var_1_6) : ((WrapperStruct00.var_1_13 - WrapperStruct00.var_1_19)))) - (WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_5) < 0 ) ? -(WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_5))))))) : (WrapperStruct00.var_1_12 == ((signed long int) (WrapperStruct00.var_1_6 + (((((WrapperStruct00.var_1_19) < (WrapperStruct00.var_1_19)) ? (WrapperStruct00.var_1_19) : (WrapperStruct00.var_1_19))) - WrapperStruct00.var_1_19)))))) && (WrapperStruct00.var_1_18 == ((signed short int) WrapperStruct00.var_1_5))) && (WrapperStruct00.var_1_19 == ((unsigned short int) WrapperStruct00.var_1_6)) ; [L117] RET, EXPR property() [L117] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 123 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.0s, OverallIterations: 8, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 455 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 455 mSDsluCounter, 3331 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2148 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1218 IncrementalHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 1183 mSDtfsCounter, 1218 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=372occurred in iteration=5, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 95 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 1182 NumberOfCodeBlocks, 1182 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1040 ConstructedInterpolants, 0 QuantifiedInterpolants, 1469 SizeOfPredicates, 0 NumberOfNonLiveVariables, 515 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 2886/2912 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 [2024-11-28 03:50:10,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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_58608986-5cd4-4843-843a-b0f1b3ebe748/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 e1d78d248c74132bd311292745f8a4e0496a51de00b4b221480ef3ff016a6c65 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:50:13,640 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:50:13,791 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 03:50:13,800 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:50:13,801 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:50:13,836 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:50:13,839 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:50:13,839 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:50:13,840 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:50:13,840 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:50:13,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:50:13,842 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:50:13,843 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:50:13,843 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:50:13,843 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:50:13,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:50:13,844 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:50:13,845 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:50:13,845 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:50:13,845 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:50:13,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:50:13,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:50:13,846 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:50:13,846 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:50:13,846 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:50:13,846 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:50:13,846 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:50:13,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:50:13,847 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:50:13,847 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:50:13,847 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:50:13,848 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:50:13,848 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:50:13,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:50:13,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:50:13,849 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:50:13,849 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:50:13,849 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:50:13,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:50:13,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:50:13,849 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:50:13,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:50:13,850 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:50:13,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:50:13,851 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:50:13,852 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:50:13,852 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:50:13,852 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:50:13,852 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:50:13,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:50:13,852 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_58608986-5cd4-4843-843a-b0f1b3ebe748/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 -> e1d78d248c74132bd311292745f8a4e0496a51de00b4b221480ef3ff016a6c65 [2024-11-28 03:50:14,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:50:14,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:50:14,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:50:14,206 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:50:14,207 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:50:14,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i [2024-11-28 03:50:17,334 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/data/fb9014e4c/f25dac38ccf141e187dd97e426aa0d3b/FLAG3f7c5d64a [2024-11-28 03:50:17,641 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:50:17,643 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i [2024-11-28 03:50:17,656 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/data/fb9014e4c/f25dac38ccf141e187dd97e426aa0d3b/FLAG3f7c5d64a [2024-11-28 03:50:17,683 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/data/fb9014e4c/f25dac38ccf141e187dd97e426aa0d3b [2024-11-28 03:50:17,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:50:17,691 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:50:17,694 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:50:17,694 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:50:17,699 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:50:17,700 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:50:17" (1/1) ... [2024-11-28 03:50:17,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fdf27e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:50:17, skipping insertion in model container [2024-11-28 03:50:17,703 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:50:17" (1/1) ... [2024-11-28 03:50:17,727 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:50:17,916 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_58608986-5cd4-4843-843a-b0f1b3ebe748/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i[916,929] [2024-11-28 03:50:18,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:50:18,049 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:50:18,066 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_58608986-5cd4-4843-843a-b0f1b3ebe748/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i[916,929] [2024-11-28 03:50:18,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:50:18,211 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:50:18,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:50:18 WrapperNode [2024-11-28 03:50:18,213 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:50:18,214 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:50:18,214 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:50:18,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:50:18,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:50:18" (1/1) ... [2024-11-28 03:50:18,261 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:50:18" (1/1) ... [2024-11-28 03:50:18,326 INFO L138 Inliner]: procedures = 37, calls = 178, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 551 [2024-11-28 03:50:18,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:50:18,333 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:50:18,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:50:18,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:50:18,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:50:18" (1/1) ... [2024-11-28 03:50:18,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:50:18" (1/1) ... [2024-11-28 03:50:18,357 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:50:18" (1/1) ... [2024-11-28 03:50:18,402 INFO L175 MemorySlicer]: Split 153 memory accesses to 2 slices as follows [2, 151]. 99 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]. [2024-11-28 03:50:18,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:50:18" (1/1) ... [2024-11-28 03:50:18,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:50:18" (1/1) ... [2024-11-28 03:50:18,451 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:50:18" (1/1) ... [2024-11-28 03:50:18,456 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:50:18" (1/1) ... [2024-11-28 03:50:18,465 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:50:18" (1/1) ... [2024-11-28 03:50:18,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:50:18" (1/1) ... [2024-11-28 03:50:18,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:50:18" (1/1) ... [2024-11-28 03:50:18,490 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:50:18,491 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:50:18,491 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:50:18,492 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:50:18,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:50:18" (1/1) ... [2024-11-28 03:50:18,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:50:18,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:50:18,544 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:50:18,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:50:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:50:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 03:50:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 03:50:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:50:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 03:50:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-28 03:50:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-28 03:50:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 03:50:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 03:50:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-28 03:50:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-28 03:50:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-28 03:50:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-28 03:50:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-28 03:50:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-28 03:50:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-28 03:50:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-28 03:50:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-28 03:50:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-28 03:50:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:50:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:50:18,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-28 03:50:18,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-28 03:50:18,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:50:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:50:18,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-28 03:50:18,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-28 03:50:18,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-28 03:50:18,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-28 03:50:18,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 03:50:18,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 03:50:18,815 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:50:18,817 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:50:21,815 INFO L? ?]: Removed 174 outVars from TransFormulas that were not future-live. [2024-11-28 03:50:21,815 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:50:21,833 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:50:21,833 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:50:21,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:50:21 BoogieIcfgContainer [2024-11-28 03:50:21,834 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:50:21,836 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:50:21,836 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:50:21,841 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:50:21,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:50:17" (1/3) ... [2024-11-28 03:50:21,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e51d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:50:21, skipping insertion in model container [2024-11-28 03:50:21,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:50:18" (2/3) ... [2024-11-28 03:50:21,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e51d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:50:21, skipping insertion in model container [2024-11-28 03:50:21,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:50:21" (3/3) ... [2024-11-28 03:50:21,846 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-28.i [2024-11-28 03:50:21,862 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:50:21,865 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-28.i that has 2 procedures, 115 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:50:21,961 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:50:21,983 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;@a107f7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:50:21,983 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:50:21,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 98 states have (on average 1.4285714285714286) internal successors, (140), 99 states have internal predecessors, (140), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 03:50:22,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 03:50:22,004 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:22,005 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:50:22,005 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:22,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:22,013 INFO L85 PathProgramCache]: Analyzing trace with hash 2114448736, now seen corresponding path program 1 times [2024-11-28 03:50:22,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:50:22,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819602528] [2024-11-28 03:50:22,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:22,029 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 [2024-11-28 03:50:22,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:50:22,033 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:50:22,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:22,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:50:22,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:50:22,602 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-28 03:50:22,603 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:50:22,603 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:50:22,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819602528] [2024-11-28 03:50:22,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819602528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:22,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:22,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:50:22,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701951681] [2024-11-28 03:50:22,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:22,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:50:22,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:50:22,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:50:22,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:50:22,630 INFO L87 Difference]: Start difference. First operand has 115 states, 98 states have (on average 1.4285714285714286) internal successors, (140), 99 states have internal predecessors, (140), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 03:50:22,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:22,658 INFO L93 Difference]: Finished difference Result 223 states and 344 transitions. [2024-11-28 03:50:22,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:50:22,660 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2024-11-28 03:50:22,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:22,666 INFO L225 Difference]: With dead ends: 223 [2024-11-28 03:50:22,667 INFO L226 Difference]: Without dead ends: 111 [2024-11-28 03:50:22,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:50:22,673 INFO L435 NwaCegarLoop]: 161 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, 161 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:22,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:50:22,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-28 03:50:22,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-28 03:50:22,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 95 states have (on average 1.4) internal successors, (133), 95 states have internal predecessors, (133), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 03:50:22,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 161 transitions. [2024-11-28 03:50:22,725 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 161 transitions. Word has length 128 [2024-11-28 03:50:22,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:22,726 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 161 transitions. [2024-11-28 03:50:22,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 03:50:22,727 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 161 transitions. [2024-11-28 03:50:22,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 03:50:22,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:22,734 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:50:22,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:22,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:22,935 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:22,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:22,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1153224588, now seen corresponding path program 1 times [2024-11-28 03:50:22,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:50:22,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817268492] [2024-11-28 03:50:22,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:22,937 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 [2024-11-28 03:50:22,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:50:22,942 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:50:22,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:23,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:50:23,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:50:23,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:50:23,543 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:50:23,545 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:50:23,545 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:50:23,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817268492] [2024-11-28 03:50:23,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817268492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:23,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:23,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:50:23,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779405726] [2024-11-28 03:50:23,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:23,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:50:23,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:50:23,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:50:23,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:50:23,550 INFO L87 Difference]: Start difference. First operand 111 states and 161 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:23,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:23,604 INFO L93 Difference]: Finished difference Result 219 states and 319 transitions. [2024-11-28 03:50:23,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:50:23,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 128 [2024-11-28 03:50:23,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:23,609 INFO L225 Difference]: With dead ends: 219 [2024-11-28 03:50:23,610 INFO L226 Difference]: Without dead ends: 111 [2024-11-28 03:50:23,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:50:23,613 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:23,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 314 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:50:23,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-28 03:50:23,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-28 03:50:23,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 95 states have (on average 1.3894736842105264) internal successors, (132), 95 states have internal predecessors, (132), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 03:50:23,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 160 transitions. [2024-11-28 03:50:23,629 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 160 transitions. Word has length 128 [2024-11-28 03:50:23,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:23,634 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 160 transitions. [2024-11-28 03:50:23,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:23,635 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 160 transitions. [2024-11-28 03:50:23,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 03:50:23,636 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:23,636 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:50:23,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:23,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:23,837 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:23,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:23,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1147598002, now seen corresponding path program 1 times [2024-11-28 03:50:23,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:50:23,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1748211287] [2024-11-28 03:50:23,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:23,839 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 [2024-11-28 03:50:23,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:50:23,842 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:50:23,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:24,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:50:24,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:50:24,350 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:50:24,350 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:50:24,351 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:50:24,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1748211287] [2024-11-28 03:50:24,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1748211287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:24,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:24,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:50:24,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111209787] [2024-11-28 03:50:24,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:24,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:50:24,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:50:24,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:50:24,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:50:24,355 INFO L87 Difference]: Start difference. First operand 111 states and 160 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:24,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:24,491 INFO L93 Difference]: Finished difference Result 226 states and 327 transitions. [2024-11-28 03:50:24,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:50:24,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 128 [2024-11-28 03:50:24,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:24,493 INFO L225 Difference]: With dead ends: 226 [2024-11-28 03:50:24,496 INFO L226 Difference]: Without dead ends: 118 [2024-11-28 03:50:24,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:50:24,497 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 1 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:24,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 744 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:50:24,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-28 03:50:24,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-11-28 03:50:24,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 101 states have internal predecessors, (138), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 03:50:24,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 166 transitions. [2024-11-28 03:50:24,513 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 166 transitions. Word has length 128 [2024-11-28 03:50:24,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:24,514 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 166 transitions. [2024-11-28 03:50:24,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:24,514 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 166 transitions. [2024-11-28 03:50:24,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 03:50:24,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:24,522 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:50:24,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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)] Forceful destruction successful, exit code 0 [2024-11-28 03:50:24,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:24,723 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:24,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:24,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1372361932, now seen corresponding path program 1 times [2024-11-28 03:50:24,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:50:24,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902568274] [2024-11-28 03:50:24,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:24,724 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 [2024-11-28 03:50:24,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:50:24,728 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:50:24,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:25,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:50:25,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:50:25,267 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 95 treesize of output 41 [2024-11-28 03:50:25,309 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:50:25,310 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:50:25,310 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:50:25,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902568274] [2024-11-28 03:50:25,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902568274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:25,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:25,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:50:25,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831404429] [2024-11-28 03:50:25,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:25,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:50:25,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:50:25,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:50:25,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:50:25,312 INFO L87 Difference]: Start difference. First operand 117 states and 166 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:27,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:27,210 INFO L93 Difference]: Finished difference Result 232 states and 330 transitions. [2024-11-28 03:50:27,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:50:27,210 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 128 [2024-11-28 03:50:27,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:27,211 INFO L225 Difference]: With dead ends: 232 [2024-11-28 03:50:27,212 INFO L226 Difference]: Without dead ends: 118 [2024-11-28 03:50:27,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:50:27,213 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 154 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:27,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 458 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 03:50:27,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-28 03:50:27,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-11-28 03:50:27,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 101 states have (on average 1.3564356435643565) internal successors, (137), 101 states have internal predecessors, (137), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 03:50:27,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 165 transitions. [2024-11-28 03:50:27,225 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 165 transitions. Word has length 128 [2024-11-28 03:50:27,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:27,226 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 165 transitions. [2024-11-28 03:50:27,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:27,228 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 165 transitions. [2024-11-28 03:50:27,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:50:27,232 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:27,233 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:50:27,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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)] Ended with exit code 0 [2024-11-28 03:50:27,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:27,433 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:27,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:27,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1025550586, now seen corresponding path program 1 times [2024-11-28 03:50:27,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:50:27,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123517200] [2024-11-28 03:50:27,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:27,435 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 [2024-11-28 03:50:27,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:50:27,439 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:50:27,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:27,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:50:27,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:50:27,979 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 95 treesize of output 41 [2024-11-28 03:50:28,027 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:50:28,027 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:50:28,027 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:50:28,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123517200] [2024-11-28 03:50:28,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123517200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:28,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:28,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:50:28,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422438724] [2024-11-28 03:50:28,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:28,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:50:28,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:50:28,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:50:28,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:50:28,030 INFO L87 Difference]: Start difference. First operand 117 states and 165 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 03:50:29,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:29,647 INFO L93 Difference]: Finished difference Result 232 states and 328 transitions. [2024-11-28 03:50:29,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:50:29,649 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2024-11-28 03:50:29,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:29,650 INFO L225 Difference]: With dead ends: 232 [2024-11-28 03:50:29,650 INFO L226 Difference]: Without dead ends: 118 [2024-11-28 03:50:29,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:50:29,651 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 142 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:29,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 453 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 03:50:29,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-28 03:50:29,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-11-28 03:50:29,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 101 states have (on average 1.3465346534653466) internal successors, (136), 101 states have internal predecessors, (136), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 03:50:29,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 164 transitions. [2024-11-28 03:50:29,661 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 164 transitions. Word has length 130 [2024-11-28 03:50:29,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:29,662 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 164 transitions. [2024-11-28 03:50:29,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 03:50:29,662 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 164 transitions. [2024-11-28 03:50:29,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 03:50:29,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:29,664 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:50:29,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:29,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:29,865 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:29,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:29,865 INFO L85 PathProgramCache]: Analyzing trace with hash -727615500, now seen corresponding path program 1 times [2024-11-28 03:50:29,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:50:29,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732498402] [2024-11-28 03:50:29,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:29,866 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 [2024-11-28 03:50:29,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:50:29,868 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:50:29,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:30,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 03:50:30,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:50:30,427 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 [2024-11-28 03:50:30,766 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 [2024-11-28 03:50:31,113 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:50:31,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 32 [2024-11-28 03:50:31,308 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:50:31,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 32 [2024-11-28 03:50:31,491 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:50:31,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 32 [2024-11-28 03:50:31,747 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:50:31,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 32 [2024-11-28 03:50:32,073 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:50:32,074 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 42 treesize of output 18 [2024-11-28 03:50:32,131 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 201 proven. 27 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:50:32,134 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:50:32,634 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-28 03:50:32,634 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:50:32,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732498402] [2024-11-28 03:50:32,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732498402] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:50:32,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:50:32,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 14 [2024-11-28 03:50:32,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572482440] [2024-11-28 03:50:32,635 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:50:32,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:50:32,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:50:32,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:50:32,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:50:32,637 INFO L87 Difference]: Start difference. First operand 117 states and 164 transitions. Second operand has 14 states, 12 states have (on average 8.0) internal successors, (96), 13 states have internal predecessors, (96), 6 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-28 03:50:36,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:50:39,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:39,273 INFO L93 Difference]: Finished difference Result 239 states and 331 transitions. [2024-11-28 03:50:39,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:50:39,274 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.0) internal successors, (96), 13 states have internal predecessors, (96), 6 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) Word has length 132 [2024-11-28 03:50:39,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:39,275 INFO L225 Difference]: With dead ends: 239 [2024-11-28 03:50:39,275 INFO L226 Difference]: Without dead ends: 125 [2024-11-28 03:50:39,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 249 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:50:39,277 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 301 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:39,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 330 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-28 03:50:39,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-28 03:50:39,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-28 03:50:39,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 107 states have (on average 1.3177570093457944) internal successors, (141), 107 states have internal predecessors, (141), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 03:50:39,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 169 transitions. [2024-11-28 03:50:39,297 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 169 transitions. Word has length 132 [2024-11-28 03:50:39,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:39,297 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 169 transitions. [2024-11-28 03:50:39,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.0) internal successors, (96), 13 states have internal predecessors, (96), 6 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-28 03:50:39,298 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 169 transitions. [2024-11-28 03:50:39,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 03:50:39,300 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:39,300 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:50:39,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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)] Forceful destruction successful, exit code 0 [2024-11-28 03:50:39,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:39,501 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:39,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:39,502 INFO L85 PathProgramCache]: Analyzing trace with hash 57038841, now seen corresponding path program 1 times [2024-11-28 03:50:39,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:50:39,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350832802] [2024-11-28 03:50:39,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:39,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:50:39,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:50:39,504 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:50:39,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:40,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 03:50:40,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:50:40,178 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 [2024-11-28 03:50:40,293 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 [2024-11-28 03:50:40,519 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:50:40,520 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 [2024-11-28 03:50:40,857 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:50:40,857 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 [2024-11-28 03:50:41,087 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:50:41,087 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 [2024-11-28 03:50:41,299 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:50:41,299 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 [2024-11-28 03:50:41,569 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:50:41,570 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 [2024-11-28 03:50:41,895 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:50:41,895 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 [2024-11-28 03:50:41,976 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:50:41,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 53 [2024-11-28 03:50:42,112 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:50:42,112 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 69 treesize of output 65 [2024-11-28 03:50:42,448 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:50:42,449 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 84 treesize of output 68 [2024-11-28 03:50:42,555 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:50:42,556 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 109 treesize of output 49 [2024-11-28 03:50:42,659 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 209 proven. 33 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-28 03:50:42,660 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:50:42,934 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:50:42,934 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:50:42,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350832802] [2024-11-28 03:50:42,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350832802] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:50:42,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:50:42,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 14 [2024-11-28 03:50:42,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676154109] [2024-11-28 03:50:42,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:42,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:50:42,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:50:42,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:50:42,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:50:42,937 INFO L87 Difference]: Start difference. First operand 125 states and 169 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:44,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:44,753 INFO L93 Difference]: Finished difference Result 319 states and 432 transitions. [2024-11-28 03:50:44,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:50:44,754 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 134 [2024-11-28 03:50:44,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:44,756 INFO L225 Difference]: With dead ends: 319 [2024-11-28 03:50:44,756 INFO L226 Difference]: Without dead ends: 197 [2024-11-28 03:50:44,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:50:44,758 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 80 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:44,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 464 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:50:44,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-28 03:50:44,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2024-11-28 03:50:44,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 173 states have (on average 1.3352601156069364) internal successors, (231), 174 states have internal predecessors, (231), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 03:50:44,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 263 transitions. [2024-11-28 03:50:44,779 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 263 transitions. Word has length 134 [2024-11-28 03:50:44,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:44,779 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 263 transitions. [2024-11-28 03:50:44,780 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:44,780 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 263 transitions. [2024-11-28 03:50:44,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 03:50:44,781 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:44,782 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:50:44,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:44,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:44,983 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:44,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:44,983 INFO L85 PathProgramCache]: Analyzing trace with hash 712789963, now seen corresponding path program 1 times [2024-11-28 03:50:44,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:50:44,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100188533] [2024-11-28 03:50:44,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:44,985 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:50:44,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:50:44,987 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:50:44,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:50:45,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:50:45,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:50:45,522 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:50:45,523 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:50:45,523 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:50:45,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100188533] [2024-11-28 03:50:45,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100188533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:50:45,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:50:45,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:50:45,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607479827] [2024-11-28 03:50:45,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:50:45,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:50:45,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:50:45,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:50:45,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:50:45,524 INFO L87 Difference]: Start difference. First operand 194 states and 263 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:45,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:50:45,610 INFO L93 Difference]: Finished difference Result 391 states and 531 transitions. [2024-11-28 03:50:45,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:50:45,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 136 [2024-11-28 03:50:45,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:50:45,614 INFO L225 Difference]: With dead ends: 391 [2024-11-28 03:50:45,615 INFO L226 Difference]: Without dead ends: 200 [2024-11-28 03:50:45,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:50:45,616 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:50:45,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 599 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:50:45,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-28 03:50:45,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2024-11-28 03:50:45,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 179 states have (on average 1.324022346368715) internal successors, (237), 180 states have internal predecessors, (237), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 03:50:45,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 269 transitions. [2024-11-28 03:50:45,645 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 269 transitions. Word has length 136 [2024-11-28 03:50:45,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:50:45,647 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 269 transitions. [2024-11-28 03:50:45,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:50:45,647 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 269 transitions. [2024-11-28 03:50:45,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 03:50:45,649 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:50:45,649 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:50:45,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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)] Forceful destruction successful, exit code 0 [2024-11-28 03:50:45,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:50:45,849 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:50:45,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:50:45,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1945888692, now seen corresponding path program 1 times [2024-11-28 03:50:45,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:50:45,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523713498] [2024-11-28 03:50:45,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:50:45,850 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:50:45,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:50:45,852 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:50:45,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:51:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:51:16,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-28 03:51:16,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:51:16,718 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 [2024-11-28 03:51:17,309 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 78 treesize of output 32 [2024-11-28 03:51:19,093 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:51:19,093 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 136 treesize of output 63 [2024-11-28 03:51:19,662 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:51:19,663 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 136 treesize of output 63 [2024-11-28 03:51:20,148 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:51:20,148 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 131 treesize of output 73 [2024-11-28 03:51:21,014 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 146 treesize of output 76 [2024-11-28 03:51:22,976 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:51:22,976 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 206 treesize of output 109 [2024-11-28 03:51:23,578 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:51:23,579 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 206 treesize of output 109 [2024-11-28 03:51:24,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:51:24,418 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 206 treesize of output 109 [2024-11-28 03:51:26,203 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:51:26,203 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 284 treesize of output 151 [2024-11-28 03:51:26,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 45 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 312 treesize of output 184 [2024-11-28 03:51:27,687 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:51:27,687 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 396 treesize of output 216 [2024-11-28 03:51:43,576 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:51:43,576 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 312 treesize of output 182 [2024-11-28 03:51:44,987 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:51:44,987 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 374 treesize of output 128 [2024-11-28 03:51:47,943 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 204 proven. 72 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 03:51:47,943 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:52:07,249 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:52:07,249 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:52:07,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523713498] [2024-11-28 03:52:07,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523713498] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:52:07,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:52:07,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [29] total 33 [2024-11-28 03:52:07,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923368796] [2024-11-28 03:52:07,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:52:07,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:52:07,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:52:07,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:52:07,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=858, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:52:07,251 INFO L87 Difference]: Start difference. First operand 200 states and 269 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:52:08,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:52:09,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:52:37,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:52:41,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:53:03,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:53:03,906 INFO L93 Difference]: Finished difference Result 439 states and 590 transitions. [2024-11-28 03:53:03,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:53:03,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 136 [2024-11-28 03:53:03,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:53:03,914 INFO L225 Difference]: With dead ends: 439 [2024-11-28 03:53:03,914 INFO L226 Difference]: Without dead ends: 242 [2024-11-28 03:53:03,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 33.6s TimeCoverageRelationStatistics Valid=203, Invalid=919, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:53:03,916 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 106 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:53:03,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 322 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 2 Unknown, 0 Unchecked, 54.4s Time] [2024-11-28 03:53:03,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-28 03:53:03,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 202. [2024-11-28 03:53:03,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 181 states have (on average 1.3204419889502763) internal successors, (239), 182 states have internal predecessors, (239), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 03:53:03,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 271 transitions. [2024-11-28 03:53:03,932 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 271 transitions. Word has length 136 [2024-11-28 03:53:03,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:53:03,933 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 271 transitions. [2024-11-28 03:53:03,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:53:03,933 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 271 transitions. [2024-11-28 03:53:03,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 03:53:03,937 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:53:03,937 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:53:03,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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)] Forceful destruction successful, exit code 0 [2024-11-28 03:53:04,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:53:04,138 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:53:04,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:04,138 INFO L85 PathProgramCache]: Analyzing trace with hash 348225118, now seen corresponding path program 1 times [2024-11-28 03:53:04,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:53:04,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321017739] [2024-11-28 03:53:04,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:04,139 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 [2024-11-28 03:53:04,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:53:04,141 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:53:04,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:53:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:42,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-28 03:53:42,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:53:42,053 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 [2024-11-28 03:53:42,632 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 78 treesize of output 32 [2024-11-28 03:53:44,202 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:53:44,203 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 131 treesize of output 73 [2024-11-28 03:53:44,853 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:53:44,853 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 141 treesize of output 86 [2024-11-28 03:53:45,689 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:53:45,689 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 151 treesize of output 99 [2024-11-28 03:53:46,640 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 0 case distinctions, treesize of input 166 treesize of output 102 [2024-11-28 03:53:48,892 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:53:48,893 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 226 treesize of output 135 [2024-11-28 03:53:49,722 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:53:49,722 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 226 treesize of output 135 [2024-11-28 03:53:50,663 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:53:50,663 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 226 treesize of output 135 [2024-11-28 03:53:52,852 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:53:52,852 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 304 treesize of output 177 [2024-11-28 03:53:53,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 45 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 180 [2024-11-28 03:54:02,745 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:54:02,746 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 390 treesize of output 218 [2024-11-28 03:54:16,312 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:54:16,312 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 405 treesize of output 221 [2024-11-28 03:54:18,043 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:54:18,044 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 467 treesize of output 169 [2024-11-28 03:54:21,502 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 220 proven. 72 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-28 03:54:21,502 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:54:39,043 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:54:39,044 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:54:39,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321017739] [2024-11-28 03:54:39,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [321017739] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:54:39,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:54:39,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [32] total 36 [2024-11-28 03:54:39,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873634136] [2024-11-28 03:54:39,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:54:39,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:54:39,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:54:39,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:54:39,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=1009, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 03:54:39,045 INFO L87 Difference]: Start difference. First operand 202 states and 271 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:55:11,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:55:25,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:25,809 INFO L93 Difference]: Finished difference Result 447 states and 600 transitions. [2024-11-28 03:55:25,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:55:25,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 136 [2024-11-28 03:55:25,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:25,819 INFO L225 Difference]: With dead ends: 447 [2024-11-28 03:55:25,819 INFO L226 Difference]: Without dead ends: 248 [2024-11-28 03:55:25,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 36.4s TimeCoverageRelationStatistics Valid=256, Invalid=1076, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 03:55:25,821 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 120 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:25,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 400 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 189 Invalid, 1 Unknown, 0 Unchecked, 44.6s Time] [2024-11-28 03:55:25,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-28 03:55:25,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 204. [2024-11-28 03:55:25,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 183 states have (on average 1.3169398907103824) internal successors, (241), 184 states have internal predecessors, (241), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 03:55:25,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 273 transitions. [2024-11-28 03:55:25,835 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 273 transitions. Word has length 136 [2024-11-28 03:55:25,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:25,835 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 273 transitions. [2024-11-28 03:55:25,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:55:25,835 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 273 transitions. [2024-11-28 03:55:25,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 03:55:25,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:25,837 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:25,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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)] Forceful destruction successful, exit code 0 [2024-11-28 03:55:26,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:55:26,038 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:26,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:26,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1735913610, now seen corresponding path program 1 times [2024-11-28 03:55:26,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:55:26,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632512168] [2024-11-28 03:55:26,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:26,039 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 [2024-11-28 03:55:26,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:55:26,040 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:55:26,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:55:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:52,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-28 03:55:52,359 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:55:52,379 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 [2024-11-28 03:55:52,864 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 78 treesize of output 32 [2024-11-28 03:55:54,337 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:55:54,338 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 131 treesize of output 73 [2024-11-28 03:55:55,076 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:55:55,076 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 146 treesize of output 76 [2024-11-28 03:55:55,621 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:55:55,622 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 141 treesize of output 86 [2024-11-28 03:55:56,538 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 156 treesize of output 89 [2024-11-28 03:55:58,639 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:55:58,639 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 216 treesize of output 122 [2024-11-28 03:55:59,340 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:55:59,341 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 216 treesize of output 122 [2024-11-28 03:56:00,255 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:56:00,255 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 216 treesize of output 122 [2024-11-28 03:56:02,274 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:56:02,275 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 294 treesize of output 164 [2024-11-28 03:56:03,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 36 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 155 [2024-11-28 03:56:04,043 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:56:04,044 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 370 treesize of output 181 [2024-11-28 03:56:21,931 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:56:21,932 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 286 treesize of output 147 [2024-11-28 03:56:22,885 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:56:22,885 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 348 treesize of output 120 [2024-11-28 03:56:25,819 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 204 proven. 72 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 03:56:25,819 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:56:43,087 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:56:43,087 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:56:43,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632512168] [2024-11-28 03:56:43,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632512168] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:43,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:56:43,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [30] total 34 [2024-11-28 03:56:43,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261295921] [2024-11-28 03:56:43,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:43,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:56:43,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:56:43,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:56:43,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=906, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:56:43,089 INFO L87 Difference]: Start difference. First operand 204 states and 273 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:56:44,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:56:45,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:57:08,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:57:12,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:57:35,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:57:35,184 INFO L93 Difference]: Finished difference Result 439 states and 587 transitions. [2024-11-28 03:57:35,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:57:35,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-11-28 03:57:35,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:57:35,195 INFO L225 Difference]: With dead ends: 439 [2024-11-28 03:57:35,195 INFO L226 Difference]: Without dead ends: 238 [2024-11-28 03:57:35,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 32.8s TimeCoverageRelationStatistics Valid=221, Invalid=969, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 03:57:35,196 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 102 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:57:35,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 382 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 2 Unknown, 0 Unchecked, 50.3s Time] [2024-11-28 03:57:35,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-28 03:57:35,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 196. [2024-11-28 03:57:35,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 175 states have (on average 1.3142857142857143) internal successors, (230), 176 states have internal predecessors, (230), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 03:57:35,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 262 transitions. [2024-11-28 03:57:35,213 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 262 transitions. Word has length 138 [2024-11-28 03:57:35,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:57:35,215 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 262 transitions. [2024-11-28 03:57:35,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:57:35,215 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 262 transitions. [2024-11-28 03:57:35,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 03:57:35,217 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:35,217 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:57:35,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:57:35,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:57:35,420 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:57:35,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:35,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1456644390, now seen corresponding path program 1 times [2024-11-28 03:57:35,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:57:35,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401181083] [2024-11-28 03:57:35,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:35,421 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 [2024-11-28 03:57:35,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:57:35,423 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:57:35,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:57:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:35,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 03:57:35,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:57:36,200 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 [2024-11-28 03:57:36,446 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 80 treesize of output 34 [2024-11-28 03:57:36,533 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 80 treesize of output 34 [2024-11-28 03:57:36,646 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 80 treesize of output 34 [2024-11-28 03:57:36,894 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 80 treesize of output 34 [2024-11-28 03:57:37,072 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:57:37,073 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 186 treesize of output 118 [2024-11-28 03:57:37,254 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:57:37,254 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 190 treesize of output 115 [2024-11-28 03:57:37,494 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:57:37,494 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 194 treesize of output 115 [2024-11-28 03:57:38,073 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:57:38,073 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 256 treesize of output 88 [2024-11-28 03:57:38,398 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 03:57:38,398 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:57:39,418 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:57:39,418 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:57:39,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401181083] [2024-11-28 03:57:39,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401181083] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:57:39,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:57:39,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2024-11-28 03:57:39,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791824184] [2024-11-28 03:57:39,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:57:39,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:57:39,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:57:39,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:57:39,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:57:39,420 INFO L87 Difference]: Start difference. First operand 196 states and 262 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:57:40,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-28 03:57:47,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:57:47,870 INFO L93 Difference]: Finished difference Result 560 states and 746 transitions. [2024-11-28 03:57:47,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:57:47,871 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-11-28 03:57:47,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:57:47,873 INFO L225 Difference]: With dead ends: 560 [2024-11-28 03:57:47,873 INFO L226 Difference]: Without dead ends: 367 [2024-11-28 03:57:47,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 255 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:57:47,875 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 93 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:57:47,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 783 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-11-28 03:57:47,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-28 03:57:47,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 364. [2024-11-28 03:57:47,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 329 states have (on average 1.3100303951367782) internal successors, (431), 332 states have internal predecessors, (431), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 03:57:47,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 483 transitions. [2024-11-28 03:57:47,900 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 483 transitions. Word has length 138 [2024-11-28 03:57:47,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:57:47,900 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 483 transitions. [2024-11-28 03:57:47,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:57:47,900 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 483 transitions. [2024-11-28 03:57:47,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 03:57:47,902 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:47,902 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:57:47,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:57:48,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:57:48,103 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:57:48,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:48,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1714809828, now seen corresponding path program 1 times [2024-11-28 03:57:48,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:57:48,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966460060] [2024-11-28 03:57:48,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:48,104 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 [2024-11-28 03:57:48,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:57:48,108 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:57:48,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:57:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:48,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-28 03:57:48,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:57:48,999 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 [2024-11-28 03:57:49,363 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 80 treesize of output 34 [2024-11-28 03:57:49,886 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:57:49,887 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 140 treesize of output 67 [2024-11-28 03:57:50,180 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:57:50,180 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 140 treesize of output 67 [2024-11-28 03:57:50,743 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:57:50,743 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 131 treesize of output 58 [2024-11-28 03:57:50,924 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 32 proven. 180 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-28 03:57:50,924 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:57:51,412 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:57:51,413 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:57:51,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966460060] [2024-11-28 03:57:51,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1966460060] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:57:51,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:57:51,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 17 [2024-11-28 03:57:51,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289942496] [2024-11-28 03:57:51,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:57:51,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:57:51,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:57:51,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:57:51,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:57:51,414 INFO L87 Difference]: Start difference. First operand 364 states and 483 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:57:54,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:57:54,462 INFO L93 Difference]: Finished difference Result 722 states and 957 transitions. [2024-11-28 03:57:54,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:57:54,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-11-28 03:57:54,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:57:54,466 INFO L225 Difference]: With dead ends: 722 [2024-11-28 03:57:54,466 INFO L226 Difference]: Without dead ends: 361 [2024-11-28 03:57:54,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:57:54,467 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 162 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:57:54,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 349 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 03:57:54,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-28 03:57:54,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 358. [2024-11-28 03:57:54,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 323 states have (on average 1.303405572755418) internal successors, (421), 326 states have internal predecessors, (421), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 03:57:54,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 473 transitions. [2024-11-28 03:57:54,491 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 473 transitions. Word has length 138 [2024-11-28 03:57:54,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:57:54,492 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 473 transitions. [2024-11-28 03:57:54,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:57:54,492 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 473 transitions. [2024-11-28 03:57:54,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 03:57:54,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:54,494 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:57:54,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:57:54,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:57:54,695 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:57:54,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:54,695 INFO L85 PathProgramCache]: Analyzing trace with hash 15895824, now seen corresponding path program 1 times [2024-11-28 03:57:54,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:57:54,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704397578] [2024-11-28 03:57:54,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:54,696 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 [2024-11-28 03:57:54,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:57:54,698 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:57:54,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:57:55,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:55,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-28 03:57:55,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:57:55,507 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 [2024-11-28 03:57:55,758 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 80 treesize of output 34 [2024-11-28 03:57:55,848 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 80 treesize of output 34 [2024-11-28 03:57:55,973 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 80 treesize of output 34 [2024-11-28 03:57:56,179 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 131 treesize of output 67 [2024-11-28 03:57:56,293 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:57:56,293 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 159 treesize of output 100 [2024-11-28 03:57:56,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:57:56,438 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 163 treesize of output 106 [2024-11-28 03:57:56,625 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:57:56,626 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 167 treesize of output 106 [2024-11-28 03:57:56,951 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:57:56,951 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 202 treesize of output 70 [2024-11-28 03:57:57,261 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 03:57:57,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:57:57,956 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:57:57,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704397578] [2024-11-28 03:57:57,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1704397578] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:57:57,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1430503568] [2024-11-28 03:57:57,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:57,956 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:57:57,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:57:57,966 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:57:57,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-28 03:58:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:02,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-28 03:58:02,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:03,034 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 [2024-11-28 03:58:03,958 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 64 treesize of output 32 [2024-11-28 03:58:04,879 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:04,880 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 112 treesize of output 63 [2024-11-28 03:58:05,295 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:05,296 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 112 treesize of output 63 [2024-11-28 03:58:06,146 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:06,146 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 103 treesize of output 54 [2024-11-28 03:58:06,475 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 32 proven. 180 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-28 03:58:06,475 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:58:07,333 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:58:07,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1430503568] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:58:07,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:58:07,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14, 13] total 30 [2024-11-28 03:58:07,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506348711] [2024-11-28 03:58:07,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:07,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:58:07,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:58:07,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:58:07,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1127, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 03:58:07,335 INFO L87 Difference]: Start difference. First operand 358 states and 473 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:58:10,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:10,258 INFO L93 Difference]: Finished difference Result 716 states and 945 transitions. [2024-11-28 03:58:10,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:58:10,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-11-28 03:58:10,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:10,262 INFO L225 Difference]: With dead ends: 716 [2024-11-28 03:58:10,262 INFO L226 Difference]: Without dead ends: 361 [2024-11-28 03:58:10,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 411 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=138, Invalid=1194, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 03:58:10,264 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 166 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:10,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 351 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 03:58:10,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-28 03:58:10,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 358. [2024-11-28 03:58:10,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 323 states have (on average 1.2972136222910218) internal successors, (419), 326 states have internal predecessors, (419), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 03:58:10,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 471 transitions. [2024-11-28 03:58:10,288 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 471 transitions. Word has length 138 [2024-11-28 03:58:10,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:10,289 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 471 transitions. [2024-11-28 03:58:10,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:58:10,289 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 471 transitions. [2024-11-28 03:58:10,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 03:58:10,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:10,291 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:10,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-28 03:58:10,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:58:10,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:58:10,692 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:10,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:10,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1263967854, now seen corresponding path program 1 times [2024-11-28 03:58:10,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:10,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545955982] [2024-11-28 03:58:10,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:10,693 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 [2024-11-28 03:58:10,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:58:10,695 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:58:10,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:58:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:11,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 03:58:11,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:11,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:58:11,694 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 [2024-11-28 03:58:11,950 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 80 treesize of output 34 [2024-11-28 03:58:12,089 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 80 treesize of output 34 [2024-11-28 03:58:12,402 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:12,402 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 131 treesize of output 58 [2024-11-28 03:58:12,439 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:12,439 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 166 treesize of output 58 [2024-11-28 03:58:12,597 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-28 03:58:12,597 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:58:12,992 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:58:12,993 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:58:12,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545955982] [2024-11-28 03:58:12,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1545955982] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:58:12,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:58:12,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-28 03:58:12,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843687191] [2024-11-28 03:58:12,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:12,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:58:12,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:58:12,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:58:12,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:58:12,994 INFO L87 Difference]: Start difference. First operand 358 states and 471 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:58:15,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:15,643 INFO L93 Difference]: Finished difference Result 881 states and 1160 transitions. [2024-11-28 03:58:15,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:58:15,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-11-28 03:58:15,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:15,648 INFO L225 Difference]: With dead ends: 881 [2024-11-28 03:58:15,648 INFO L226 Difference]: Without dead ends: 526 [2024-11-28 03:58:15,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:58:15,650 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 105 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:15,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 328 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 03:58:15,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-28 03:58:15,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 421. [2024-11-28 03:58:15,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 386 states have (on average 1.3082901554404145) internal successors, (505), 389 states have internal predecessors, (505), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 03:58:15,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 557 transitions. [2024-11-28 03:58:15,678 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 557 transitions. Word has length 138 [2024-11-28 03:58:15,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:15,679 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 557 transitions. [2024-11-28 03:58:15,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:58:15,679 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 557 transitions. [2024-11-28 03:58:15,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 03:58:15,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:15,681 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:15,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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)] Forceful destruction successful, exit code 0 [2024-11-28 03:58:15,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:58:15,881 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:15,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:15,882 INFO L85 PathProgramCache]: Analyzing trace with hash 947171300, now seen corresponding path program 1 times [2024-11-28 03:58:15,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:15,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608048514] [2024-11-28 03:58:15,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:15,883 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 [2024-11-28 03:58:15,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:58:15,884 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:58:15,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:58:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:16,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 03:58:16,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:16,771 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 [2024-11-28 03:58:17,032 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 80 treesize of output 34 [2024-11-28 03:58:17,159 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 80 treesize of output 34 [2024-11-28 03:58:17,482 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:17,482 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 131 treesize of output 58 [2024-11-28 03:58:17,678 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:17,678 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 159 treesize of output 100 [2024-11-28 03:58:17,849 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:17,849 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 163 treesize of output 106 [2024-11-28 03:58:18,081 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:18,081 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 167 treesize of output 106 [2024-11-28 03:58:18,433 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:18,433 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 202 treesize of output 70 [2024-11-28 03:58:18,570 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-28 03:58:18,571 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:58:19,058 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:58:19,058 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:58:19,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608048514] [2024-11-28 03:58:19,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608048514] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:58:19,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:58:19,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2024-11-28 03:58:19,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966767479] [2024-11-28 03:58:19,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:19,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:58:19,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:58:19,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:58:19,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:58:19,060 INFO L87 Difference]: Start difference. First operand 421 states and 557 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:58:21,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:21,659 INFO L93 Difference]: Finished difference Result 948 states and 1248 transitions. [2024-11-28 03:58:21,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:58:21,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-11-28 03:58:21,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:21,663 INFO L225 Difference]: With dead ends: 948 [2024-11-28 03:58:21,663 INFO L226 Difference]: Without dead ends: 530 [2024-11-28 03:58:21,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:58:21,665 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 166 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:21,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 261 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 03:58:21,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-28 03:58:21,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 263. [2024-11-28 03:58:21,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 241 states have (on average 1.2904564315352698) internal successors, (311), 242 states have internal predecessors, (311), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 03:58:21,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 343 transitions. [2024-11-28 03:58:21,690 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 343 transitions. Word has length 138 [2024-11-28 03:58:21,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:21,690 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 343 transitions. [2024-11-28 03:58:21,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:58:21,691 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 343 transitions. [2024-11-28 03:58:21,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 03:58:21,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:21,692 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:21,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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)] Ended with exit code 0 [2024-11-28 03:58:21,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:58:21,893 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:21,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:21,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1205336738, now seen corresponding path program 1 times [2024-11-28 03:58:21,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:21,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315153633] [2024-11-28 03:58:21,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:21,893 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 [2024-11-28 03:58:21,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:58:21,895 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:58:21,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:58:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:22,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 03:58:22,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:22,718 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 [2024-11-28 03:58:22,970 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 80 treesize of output 34 [2024-11-28 03:58:23,087 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 80 treesize of output 34 [2024-11-28 03:58:23,242 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 80 treesize of output 34 [2024-11-28 03:58:23,331 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:23,331 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 159 treesize of output 109 [2024-11-28 03:58:23,455 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:23,455 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 163 treesize of output 106 [2024-11-28 03:58:23,662 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:23,663 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 167 treesize of output 106 [2024-11-28 03:58:24,096 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:24,096 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 202 treesize of output 70 [2024-11-28 03:58:24,312 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-28 03:58:24,313 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:58:24,847 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:58:24,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315153633] [2024-11-28 03:58:24,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315153633] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:58:24,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [668726308] [2024-11-28 03:58:24,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:24,848 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:58:24,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:58:24,849 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:58:24,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-28 03:58:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:26,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 03:58:26,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:27,040 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 [2024-11-28 03:58:27,625 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 [2024-11-28 03:58:27,907 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:27,907 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 41 treesize of output 28 [2024-11-28 03:58:28,146 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:28,147 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 41 treesize of output 28 [2024-11-28 03:58:28,379 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:28,380 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 41 treesize of output 28 [2024-11-28 03:58:28,557 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:28,558 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 41 treesize of output 28 [2024-11-28 03:58:28,804 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:28,804 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 41 treesize of output 28 [2024-11-28 03:58:28,854 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:28,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 28 [2024-11-28 03:58:28,876 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:28,876 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 41 treesize of output 28 [2024-11-28 03:58:29,057 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:29,058 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 41 treesize of output 28 [2024-11-28 03:58:29,252 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:29,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 18 [2024-11-28 03:58:29,331 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 201 proven. 27 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:58:29,331 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:58:30,026 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-28 03:58:30,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [668726308] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:58:30,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:58:30,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 7] total 26 [2024-11-28 03:58:30,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764248232] [2024-11-28 03:58:30,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:58:30,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 03:58:30,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:58:30,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 03:58:30,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=823, Unknown=0, NotChecked=0, Total=930 [2024-11-28 03:58:30,028 INFO L87 Difference]: Start difference. First operand 263 states and 343 transitions. Second operand has 26 states, 24 states have (on average 8.541666666666666) internal successors, (205), 25 states have internal predecessors, (205), 9 states have call successors, (42), 7 states have call predecessors, (42), 8 states have return successors, (42), 7 states have call predecessors, (42), 9 states have call successors, (42) [2024-11-28 03:58:31,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:58:35,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:58:48,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:58:58,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:58,891 INFO L93 Difference]: Finished difference Result 843 states and 1106 transitions. [2024-11-28 03:58:58,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-28 03:58:58,893 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 8.541666666666666) internal successors, (205), 25 states have internal predecessors, (205), 9 states have call successors, (42), 7 states have call predecessors, (42), 8 states have return successors, (42), 7 states have call predecessors, (42), 9 states have call successors, (42) Word has length 138 [2024-11-28 03:58:58,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:58,896 INFO L225 Difference]: With dead ends: 843 [2024-11-28 03:58:58,896 INFO L226 Difference]: Without dead ends: 583 [2024-11-28 03:58:58,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 418 SyntacticMatches, 4 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 979 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=787, Invalid=3905, Unknown=0, NotChecked=0, Total=4692 [2024-11-28 03:58:58,900 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 1786 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 2092 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 2092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:58,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1786 Valid, 945 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 2092 Invalid, 0 Unknown, 0 Unchecked, 21.9s Time] [2024-11-28 03:58:58,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-28 03:58:58,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 482. [2024-11-28 03:58:58,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 439 states have (on average 1.287015945330296) internal successors, (565), 442 states have internal predecessors, (565), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 29 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-28 03:58:58,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 629 transitions. [2024-11-28 03:58:58,962 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 629 transitions. Word has length 138 [2024-11-28 03:58:58,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:58,963 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 629 transitions. [2024-11-28 03:58:58,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 8.541666666666666) internal successors, (205), 25 states have internal predecessors, (205), 9 states have call successors, (42), 7 states have call predecessors, (42), 8 states have return successors, (42), 7 states have call predecessors, (42), 9 states have call successors, (42) [2024-11-28 03:58:58,963 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 629 transitions. [2024-11-28 03:58:58,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 03:58:58,965 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:58,966 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:58,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-28 03:58:59,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:58:59,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:58:59,367 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:59,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:59,368 INFO L85 PathProgramCache]: Analyzing trace with hash -493577266, now seen corresponding path program 1 times [2024-11-28 03:58:59,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:59,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651776003] [2024-11-28 03:58:59,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:59,368 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 [2024-11-28 03:58:59,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:58:59,370 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:58:59,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:58:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:59,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 03:58:59,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:00,243 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 [2024-11-28 03:59:00,591 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 80 treesize of output 34 [2024-11-28 03:59:00,715 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 80 treesize of output 34 [2024-11-28 03:59:00,884 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 80 treesize of output 34 [2024-11-28 03:59:01,280 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 158 treesize of output 76 [2024-11-28 03:59:01,499 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:01,500 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 180 treesize of output 67 [2024-11-28 03:59:01,543 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:01,543 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 154 treesize of output 67 [2024-11-28 03:59:01,714 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:01,714 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 158 treesize of output 67 [2024-11-28 03:59:02,048 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:02,048 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 220 treesize of output 76 [2024-11-28 03:59:02,491 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 03:59:02,491 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:59:04,062 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:59:04,062 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:59:04,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651776003] [2024-11-28 03:59:04,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651776003] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:04,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:59:04,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 20 [2024-11-28 03:59:04,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522653868] [2024-11-28 03:59:04,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:04,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:59:04,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:59:04,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:59:04,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:59:04,065 INFO L87 Difference]: Start difference. First operand 482 states and 629 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:59:05,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-28 03:59:06,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-28 03:59:15,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:15,289 INFO L93 Difference]: Finished difference Result 1243 states and 1619 transitions. [2024-11-28 03:59:15,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:59:15,290 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-11-28 03:59:15,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:15,294 INFO L225 Difference]: With dead ends: 1243 [2024-11-28 03:59:15,294 INFO L226 Difference]: Without dead ends: 764 [2024-11-28 03:59:15,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 255 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:59:15,295 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 95 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:15,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 893 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2024-11-28 03:59:15,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-11-28 03:59:15,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 642. [2024-11-28 03:59:15,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 587 states have (on average 1.2862010221465077) internal successors, (755), 591 states have internal predecessors, (755), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 36 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 03:59:15,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 835 transitions. [2024-11-28 03:59:15,375 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 835 transitions. Word has length 138 [2024-11-28 03:59:15,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:15,375 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 835 transitions. [2024-11-28 03:59:15,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:59:15,376 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 835 transitions. [2024-11-28 03:59:15,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 03:59:15,378 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:15,378 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:15,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:59:15,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:59:15,579 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:15,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:15,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1773440944, now seen corresponding path program 1 times [2024-11-28 03:59:15,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:59:15,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481462827] [2024-11-28 03:59:15,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:15,580 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 [2024-11-28 03:59:15,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:59:15,581 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:59:15,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:59:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:16,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-28 03:59:16,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:16,583 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 [2024-11-28 03:59:17,002 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 80 treesize of output 34 [2024-11-28 03:59:17,623 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:17,623 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 140 treesize of output 67 [2024-11-28 03:59:17,941 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:17,941 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 140 treesize of output 67 [2024-11-28 03:59:18,618 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:18,618 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 131 treesize of output 58 [2024-11-28 03:59:18,929 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:18,929 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 156 treesize of output 79 [2024-11-28 03:59:19,135 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:19,135 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 145 treesize of output 82 [2024-11-28 03:59:19,338 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:19,338 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 149 treesize of output 82 [2024-11-28 03:59:19,546 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:19,546 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 184 treesize of output 64 [2024-11-28 03:59:19,729 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 32 proven. 180 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-28 03:59:19,729 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:59:20,778 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:59:20,778 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:59:20,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481462827] [2024-11-28 03:59:20,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481462827] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:20,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:59:20,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15] total 21 [2024-11-28 03:59:20,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032082591] [2024-11-28 03:59:20,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:20,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:59:20,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:59:20,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:59:20,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:59:20,779 INFO L87 Difference]: Start difference. First operand 642 states and 835 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:59:24,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:24,986 INFO L93 Difference]: Finished difference Result 1389 states and 1805 transitions. [2024-11-28 03:59:24,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:59:24,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-11-28 03:59:24,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:24,990 INFO L225 Difference]: With dead ends: 1389 [2024-11-28 03:59:24,990 INFO L226 Difference]: Without dead ends: 750 [2024-11-28 03:59:24,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:59:24,992 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 245 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:24,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 400 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-28 03:59:24,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-28 03:59:25,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 638. [2024-11-28 03:59:25,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 583 states have (on average 1.281303602058319) internal successors, (747), 587 states have internal predecessors, (747), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 36 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-28 03:59:25,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 827 transitions. [2024-11-28 03:59:25,073 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 827 transitions. Word has length 138 [2024-11-28 03:59:25,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:25,074 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 827 transitions. [2024-11-28 03:59:25,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 03:59:25,074 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 827 transitions. [2024-11-28 03:59:25,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 03:59:25,076 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:25,076 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:25,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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)] Forceful destruction successful, exit code 0 [2024-11-28 03:59:25,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:59:25,276 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:25,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:25,277 INFO L85 PathProgramCache]: Analyzing trace with hash 195546674, now seen corresponding path program 1 times [2024-11-28 03:59:25,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:59:25,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883696473] [2024-11-28 03:59:25,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:25,277 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 [2024-11-28 03:59:25,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:59:25,279 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:59:25,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:59:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:25,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 03:59:25,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:25,890 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 [2024-11-28 03:59:26,115 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 [2024-11-28 03:59:26,430 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:26,430 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 [2024-11-28 03:59:26,601 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:26,601 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 [2024-11-28 03:59:26,772 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:26,772 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 [2024-11-28 03:59:26,990 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:26,990 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 [2024-11-28 03:59:27,272 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:27,273 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 [2024-11-28 03:59:27,335 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:27,336 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 62 treesize of output 27 [2024-11-28 03:59:27,400 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:27,400 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 34 treesize of output 36 [2024-11-28 03:59:27,885 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:59:27,885 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 61 treesize of output 27 [2024-11-28 03:59:28,620 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 201 proven. 27 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:59:28,620 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:59:30,184 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-28 03:59:30,184 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:59:30,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883696473] [2024-11-28 03:59:30,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883696473] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:59:30,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:59:30,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2024-11-28 03:59:30,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969999100] [2024-11-28 03:59:30,185 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:59:30,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 03:59:30,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:59:30,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 03:59:30,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:59:30,186 INFO L87 Difference]: Start difference. First operand 638 states and 827 transitions. Second operand has 21 states, 19 states have (on average 6.105263157894737) internal successors, (116), 20 states have internal predecessors, (116), 6 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-28 03:59:34,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:59:35,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:59:43,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:43,583 INFO L93 Difference]: Finished difference Result 1707 states and 2212 transitions. [2024-11-28 03:59:43,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 03:59:43,584 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 6.105263157894737) internal successors, (116), 20 states have internal predecessors, (116), 6 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) Word has length 138 [2024-11-28 03:59:43,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:43,594 INFO L225 Difference]: With dead ends: 1707 [2024-11-28 03:59:43,594 INFO L226 Difference]: Without dead ends: 1072 [2024-11-28 03:59:43,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=233, Invalid=697, Unknown=0, NotChecked=0, Total=930 [2024-11-28 03:59:43,596 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 634 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:43,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 456 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2024-11-28 03:59:43,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2024-11-28 03:59:43,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 708. [2024-11-28 03:59:43,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 657 states have (on average 1.30441400304414) internal successors, (857), 661 states have internal predecessors, (857), 36 states have call successors, (36), 14 states have call predecessors, (36), 14 states have return successors, (36), 32 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 03:59:43,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 929 transitions. [2024-11-28 03:59:43,675 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 929 transitions. Word has length 138 [2024-11-28 03:59:43,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:43,675 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 929 transitions. [2024-11-28 03:59:43,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 6.105263157894737) internal successors, (116), 20 states have internal predecessors, (116), 6 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-28 03:59:43,676 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 929 transitions. [2024-11-28 03:59:43,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 03:59:43,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:43,679 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:43,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:59:43,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 03:59:43,881 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:43,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:43,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1798598032, now seen corresponding path program 1 times [2024-11-28 03:59:43,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:59:43,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897588910] [2024-11-28 03:59:43,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:43,883 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 [2024-11-28 03:59:43,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:59:43,885 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 03:59:43,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 04:00:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:27,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-11-28 04:00:27,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:27,745 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 [2024-11-28 04:00:28,338 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 78 treesize of output 32 [2024-11-28 04:00:30,221 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:30,221 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 131 treesize of output 73 [2024-11-28 04:00:31,049 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:31,049 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 146 treesize of output 76 [2024-11-28 04:00:31,691 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:31,691 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 146 treesize of output 76 [2024-11-28 04:00:32,329 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 146 treesize of output 76 [2024-11-28 04:00:34,276 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:34,277 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 206 treesize of output 109 [2024-11-28 04:00:34,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:34,973 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 206 treesize of output 109 [2024-11-28 04:00:35,907 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:35,907 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 206 treesize of output 109 [2024-11-28 04:00:37,932 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:37,932 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 284 treesize of output 151 [2024-11-28 04:00:38,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 154 [2024-11-28 04:00:48,589 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:00:48,589 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 370 treesize of output 192 [2024-11-28 04:01:07,671 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:01:07,672 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 385 treesize of output 195 [2024-11-28 04:01:09,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:01:09,322 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 447 treesize of output 161 [2024-11-28 04:01:13,512 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 172 proven. 72 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-28 04:01:13,512 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:33,675 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:01:33,676 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:01:33,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897588910] [2024-11-28 04:01:33,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897588910] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:33,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:01:33,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [30] total 34 [2024-11-28 04:01:33,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629828758] [2024-11-28 04:01:33,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:33,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:01:33,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:01:33,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:01:33,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=910, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:01:33,678 INFO L87 Difference]: Start difference. First operand 708 states and 929 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 04:01:34,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:02:07,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:02:11,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:02:37,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:37,366 INFO L93 Difference]: Finished difference Result 1651 states and 2156 transitions. [2024-11-28 04:02:37,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:02:37,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-11-28 04:02:37,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:37,380 INFO L225 Difference]: With dead ends: 1651 [2024-11-28 04:02:37,380 INFO L226 Difference]: Without dead ends: 946 [2024-11-28 04:02:37,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 38.2s TimeCoverageRelationStatistics Valid=217, Invalid=973, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 04:02:37,383 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 57 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:37,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 468 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 262 Invalid, 2 Unknown, 0 Unchecked, 61.7s Time] [2024-11-28 04:02:37,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2024-11-28 04:02:37,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 696. [2024-11-28 04:02:37,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 645 states have (on average 1.2945736434108528) internal successors, (835), 649 states have internal predecessors, (835), 36 states have call successors, (36), 14 states have call predecessors, (36), 14 states have return successors, (36), 32 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:02:37,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 907 transitions. [2024-11-28 04:02:37,463 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 907 transitions. Word has length 138 [2024-11-28 04:02:37,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:37,464 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 907 transitions. [2024-11-28 04:02:37,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 04:02:37,464 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 907 transitions. [2024-11-28 04:02:37,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 04:02:37,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:37,466 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:02:37,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 04:02:37,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 04:02:37,667 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:02:37,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:37,668 INFO L85 PathProgramCache]: Analyzing trace with hash 2093553559, now seen corresponding path program 1 times [2024-11-28 04:02:37,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:02:37,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277620156] [2024-11-28 04:02:37,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:37,669 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 [2024-11-28 04:02:37,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:02:37,671 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 04:02:37,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 04:02:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:38,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-28 04:02:38,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:02:38,420 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 [2024-11-28 04:02:38,542 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 15 [2024-11-28 04:02:38,815 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:02:38,815 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 42 treesize of output 29 [2024-11-28 04:02:38,953 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:02:38,953 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 42 treesize of output 29 [2024-11-28 04:02:39,057 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:02:39,057 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 42 treesize of output 29 [2024-11-28 04:02:39,157 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:02:39,157 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 42 treesize of output 29 [2024-11-28 04:02:39,287 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:02:39,287 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 42 treesize of output 29 [2024-11-28 04:02:39,456 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:02:39,456 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 42 treesize of output 29 [2024-11-28 04:02:39,496 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:02:39,496 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 67 treesize of output 41 [2024-11-28 04:02:39,700 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:02:39,700 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 73 treesize of output 60 [2024-11-28 04:02:40,217 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:02:40,217 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 99 treesize of output 68 [2024-11-28 04:02:40,431 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:02:40,431 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 110 treesize of output 48 [2024-11-28 04:02:57,467 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 156 proven. 57 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-11-28 04:02:57,467 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:03:06,987 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:03:06,987 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:03:06,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [277620156] [2024-11-28 04:03:06,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [277620156] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:06,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:06,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [20] total 28 [2024-11-28 04:03:06,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566323908] [2024-11-28 04:03:06,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:06,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:03:06,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:03:06,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:03:06,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:03:06,989 INFO L87 Difference]: Start difference. First operand 696 states and 907 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 04:03:20,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:20,500 INFO L93 Difference]: Finished difference Result 2152 states and 2788 transitions. [2024-11-28 04:03:20,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:03:20,502 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-11-28 04:03:20,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:20,506 INFO L225 Difference]: With dead ends: 2152 [2024-11-28 04:03:20,506 INFO L226 Difference]: Without dead ends: 1459 [2024-11-28 04:03:20,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 34.4s TimeCoverageRelationStatistics Valid=177, Invalid=1013, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 04:03:20,508 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 262 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:20,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 1018 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-28 04:03:20,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2024-11-28 04:03:20,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 780. [2024-11-28 04:03:20,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 729 states have (on average 1.3017832647462277) internal successors, (949), 733 states have internal predecessors, (949), 36 states have call successors, (36), 14 states have call predecessors, (36), 14 states have return successors, (36), 32 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:03:20,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1021 transitions. [2024-11-28 04:03:20,583 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1021 transitions. Word has length 138 [2024-11-28 04:03:20,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:20,584 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 1021 transitions. [2024-11-28 04:03:20,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 04:03:20,584 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1021 transitions. [2024-11-28 04:03:20,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 04:03:20,586 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:20,586 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:20,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 04:03:20,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 04:03:20,787 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:03:20,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:20,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1072485205, now seen corresponding path program 1 times [2024-11-28 04:03:20,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:03:20,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859045955] [2024-11-28 04:03:20,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:20,789 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 [2024-11-28 04:03:20,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:03:20,791 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 04:03:20,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 04:03:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:21,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-28 04:03:21,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:21,443 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 [2024-11-28 04:03:21,581 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 26 treesize of output 25 [2024-11-28 04:03:22,019 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:22,020 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 [2024-11-28 04:03:22,375 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:22,375 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 [2024-11-28 04:03:22,603 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:22,603 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 [2024-11-28 04:03:22,824 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:22,824 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 [2024-11-28 04:03:23,166 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:23,167 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 [2024-11-28 04:03:23,516 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:23,517 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 [2024-11-28 04:03:23,594 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:23,594 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 84 treesize of output 46 [2024-11-28 04:03:23,994 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:23,994 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 86 treesize of output 67 [2024-11-28 04:03:24,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:24,993 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 126 treesize of output 83 [2024-11-28 04:03:25,248 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:25,248 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 137 treesize of output 61 [2024-11-28 04:03:25,506 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 189 proven. 57 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 04:03:25,506 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:03:26,737 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:03:26,738 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:03:26,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859045955] [2024-11-28 04:03:26,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [859045955] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:26,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:26,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 25 [2024-11-28 04:03:26,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315971288] [2024-11-28 04:03:26,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:26,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:03:26,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:03:26,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:03:26,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:03:26,740 INFO L87 Difference]: Start difference. First operand 780 states and 1021 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 04:03:33,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:33,854 INFO L93 Difference]: Finished difference Result 1999 states and 2595 transitions. [2024-11-28 04:03:33,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:03:33,856 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-11-28 04:03:33,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:33,858 INFO L225 Difference]: With dead ends: 1999 [2024-11-28 04:03:33,858 INFO L226 Difference]: Without dead ends: 1222 [2024-11-28 04:03:33,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 248 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:03:33,860 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 291 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:33,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 614 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-11-28 04:03:33,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2024-11-28 04:03:33,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 780. [2024-11-28 04:03:33,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 729 states have (on average 1.2935528120713307) internal successors, (943), 733 states have internal predecessors, (943), 36 states have call successors, (36), 14 states have call predecessors, (36), 14 states have return successors, (36), 32 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:03:33,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1015 transitions. [2024-11-28 04:03:33,950 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1015 transitions. Word has length 138 [2024-11-28 04:03:33,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:33,951 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 1015 transitions. [2024-11-28 04:03:33,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 04:03:33,951 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1015 transitions. [2024-11-28 04:03:33,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 04:03:33,953 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:33,953 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:33,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 04:03:34,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 04:03:34,154 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:03:34,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:34,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1982559019, now seen corresponding path program 1 times [2024-11-28 04:03:34,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:03:34,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999096776] [2024-11-28 04:03:34,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:34,155 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 [2024-11-28 04:03:34,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:03:34,157 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 04:03:34,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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)] Waiting until timeout for monitored process [2024-11-28 04:03:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:34,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-28 04:03:34,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:34,870 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 [2024-11-28 04:03:34,877 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 [2024-11-28 04:03:34,969 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 [2024-11-28 04:03:35,042 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 [2024-11-28 04:03:35,099 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 [2024-11-28 04:03:35,164 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 [2024-11-28 04:03:35,258 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 [2024-11-28 04:03:35,349 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 [2024-11-28 04:03:35,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:35,377 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 58 treesize of output 47 [2024-11-28 04:03:35,533 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:35,533 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 74 treesize of output 70 [2024-11-28 04:03:35,742 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:35,742 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 89 treesize of output 73 [2024-11-28 04:03:35,915 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:35,915 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 100 treesize of output 44 [2024-11-28 04:03:36,500 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-28 04:03:36,500 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:36,500 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:03:36,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999096776] [2024-11-28 04:03:36,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [999096776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:36,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:36,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:03:36,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615567610] [2024-11-28 04:03:36,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:36,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:03:36,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:03:36,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:03:36,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:03:36,503 INFO L87 Difference]: Start difference. First operand 780 states and 1015 transitions. Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 04:03:37,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:38,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:40,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:53,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:53,691 INFO L93 Difference]: Finished difference Result 1871 states and 2419 transitions. [2024-11-28 04:03:53,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:03:53,692 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2024-11-28 04:03:53,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:53,695 INFO L225 Difference]: With dead ends: 1871 [2024-11-28 04:03:53,695 INFO L226 Difference]: Without dead ends: 1094 [2024-11-28 04:03:53,696 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:03:53,697 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 314 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:53,697 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 535 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 16.7s Time] [2024-11-28 04:03:53,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2024-11-28 04:03:53,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 640. [2024-11-28 04:03:53,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 599 states have (on average 1.3055091819699498) internal successors, (782), 600 states have internal predecessors, (782), 28 states have call successors, (28), 12 states have call predecessors, (28), 12 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 04:03:53,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 838 transitions. [2024-11-28 04:03:53,779 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 838 transitions. Word has length 138 [2024-11-28 04:03:53,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:53,780 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 838 transitions. [2024-11-28 04:03:53,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 04:03:53,780 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 838 transitions. [2024-11-28 04:03:53,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 04:03:53,782 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:53,782 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:53,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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)] Ended with exit code 0 [2024-11-28 04:03:53,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 04:03:53,983 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:03:53,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:53,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1291339923, now seen corresponding path program 1 times [2024-11-28 04:03:53,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:03:53,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497409780] [2024-11-28 04:03:53,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:53,984 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 [2024-11-28 04:03:53,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:03:53,986 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 04:03:53,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 04:03:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:54,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-28 04:03:54,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:54,655 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 [2024-11-28 04:03:54,777 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 26 treesize of output 25 [2024-11-28 04:03:55,307 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:55,307 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 [2024-11-28 04:03:55,518 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:55,518 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 [2024-11-28 04:03:55,666 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:55,666 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 [2024-11-28 04:03:55,817 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:55,818 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 [2024-11-28 04:03:56,034 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:56,034 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 [2024-11-28 04:03:56,355 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:56,355 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 [2024-11-28 04:03:56,465 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:56,466 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 80 treesize of output 57 [2024-11-28 04:03:56,997 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:56,997 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 96 treesize of output 89 [2024-11-28 04:03:58,362 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:58,362 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 148 treesize of output 111 [2024-11-28 04:03:58,704 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:03:58,705 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 159 treesize of output 71 [2024-11-28 04:04:04,148 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 157 proven. 57 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-28 04:04:04,148 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:06,858 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:04:06,858 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:06,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497409780] [2024-11-28 04:04:06,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497409780] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:06,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:06,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 25 [2024-11-28 04:04:06,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088850410] [2024-11-28 04:04:06,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:06,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:04:06,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:06,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:04:06,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:04:06,860 INFO L87 Difference]: Start difference. First operand 640 states and 838 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 04:04:08,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:04:09,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:04:10,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:04:16,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:16,333 INFO L93 Difference]: Finished difference Result 1613 states and 2085 transitions. [2024-11-28 04:04:16,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:04:16,335 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-11-28 04:04:16,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:16,337 INFO L225 Difference]: With dead ends: 1613 [2024-11-28 04:04:16,337 INFO L226 Difference]: Without dead ends: 976 [2024-11-28 04:04:16,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 248 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:04:16,338 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 229 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:16,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 685 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-11-28 04:04:16,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2024-11-28 04:04:16,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 628. [2024-11-28 04:04:16,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 587 states have (on average 1.31175468483816) internal successors, (770), 588 states have internal predecessors, (770), 28 states have call successors, (28), 12 states have call predecessors, (28), 12 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 04:04:16,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 826 transitions. [2024-11-28 04:04:16,420 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 826 transitions. Word has length 138 [2024-11-28 04:04:16,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:16,421 INFO L471 AbstractCegarLoop]: Abstraction has 628 states and 826 transitions. [2024-11-28 04:04:16,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 04:04:16,422 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 826 transitions. [2024-11-28 04:04:16,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 04:04:16,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:16,425 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:16,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 04:04:16,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 04:04:16,625 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:04:16,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:16,626 INFO L85 PathProgramCache]: Analyzing trace with hash -2060865127, now seen corresponding path program 1 times [2024-11-28 04:04:16,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:16,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911414874] [2024-11-28 04:04:16,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:16,626 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 [2024-11-28 04:04:16,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:04:16,628 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 04:04:16,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 04:04:17,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:17,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-28 04:04:17,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:17,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:04:17,481 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 26 treesize of output 25 [2024-11-28 04:04:17,966 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:17,967 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 [2024-11-28 04:04:18,337 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:18,338 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 [2024-11-28 04:04:18,546 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:18,547 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 [2024-11-28 04:04:18,756 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:18,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 41 [2024-11-28 04:04:19,076 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:19,076 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 [2024-11-28 04:04:19,481 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:19,481 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 [2024-11-28 04:04:19,567 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:19,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 53 [2024-11-28 04:04:20,082 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:20,083 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 89 treesize of output 79 [2024-11-28 04:04:21,332 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:21,332 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 145 treesize of output 99 [2024-11-28 04:04:21,655 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:21,655 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 156 treesize of output 68 [2024-11-28 04:04:21,909 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 189 proven. 57 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 04:04:21,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:23,170 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:04:23,171 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:23,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911414874] [2024-11-28 04:04:23,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911414874] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:23,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:23,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [20] total 26 [2024-11-28 04:04:23,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367032699] [2024-11-28 04:04:23,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:23,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:04:23,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:23,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:04:23,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=514, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:04:23,173 INFO L87 Difference]: Start difference. First operand 628 states and 826 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 04:04:28,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:28,034 INFO L93 Difference]: Finished difference Result 1593 states and 2071 transitions. [2024-11-28 04:04:28,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:04:28,036 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-11-28 04:04:28,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:28,040 INFO L225 Difference]: With dead ends: 1593 [2024-11-28 04:04:28,040 INFO L226 Difference]: Without dead ends: 968 [2024-11-28 04:04:28,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 249 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:04:28,042 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 494 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:28,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 530 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 04:04:28,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2024-11-28 04:04:28,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 658. [2024-11-28 04:04:28,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 617 states have (on average 1.2965964343598055) internal successors, (800), 618 states have internal predecessors, (800), 28 states have call successors, (28), 12 states have call predecessors, (28), 12 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 04:04:28,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 856 transitions. [2024-11-28 04:04:28,110 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 856 transitions. Word has length 138 [2024-11-28 04:04:28,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:28,111 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 856 transitions. [2024-11-28 04:04:28,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 04:04:28,111 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 856 transitions. [2024-11-28 04:04:28,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 04:04:28,113 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:28,113 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:28,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:28,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 04:04:28,313 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:04:28,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:28,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1213033815, now seen corresponding path program 1 times [2024-11-28 04:04:28,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:28,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127564614] [2024-11-28 04:04:28,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:28,314 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 [2024-11-28 04:04:28,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:04:28,316 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 04:04:28,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 (30)] Waiting until timeout for monitored process [2024-11-28 04:04:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:28,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 04:04:29,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:29,005 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 [2024-11-28 04:04:29,009 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 [2024-11-28 04:04:29,014 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 [2024-11-28 04:04:29,018 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 [2024-11-28 04:04:29,022 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 [2024-11-28 04:04:29,030 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 [2024-11-28 04:04:29,039 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 41 treesize of output 1 [2024-11-28 04:04:29,064 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 21 treesize of output 21 [2024-11-28 04:04:29,113 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:29,113 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 24 [2024-11-28 04:04:29,166 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:29,166 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 [2024-11-28 04:04:29,269 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:04:29,269 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:29,269 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:29,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127564614] [2024-11-28 04:04:29,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127564614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:29,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:29,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:04:29,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862936474] [2024-11-28 04:04:29,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:29,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:04:29,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:29,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:04:29,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:04:29,271 INFO L87 Difference]: Start difference. First operand 658 states and 856 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 04:04:30,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:04:34,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:34,730 INFO L93 Difference]: Finished difference Result 1526 states and 1968 transitions. [2024-11-28 04:04:34,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:04:34,731 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-11-28 04:04:34,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:34,733 INFO L225 Difference]: With dead ends: 1526 [2024-11-28 04:04:34,733 INFO L226 Difference]: Without dead ends: 871 [2024-11-28 04:04:34,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:04:34,734 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 88 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:34,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 972 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-28 04:04:34,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-11-28 04:04:34,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 658. [2024-11-28 04:04:34,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 617 states have (on average 1.2965964343598055) internal successors, (800), 618 states have internal predecessors, (800), 28 states have call successors, (28), 12 states have call predecessors, (28), 12 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 04:04:34,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 856 transitions. [2024-11-28 04:04:34,812 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 856 transitions. Word has length 138 [2024-11-28 04:04:34,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:34,812 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 856 transitions. [2024-11-28 04:04:34,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-28 04:04:34,813 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 856 transitions. [2024-11-28 04:04:34,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 04:04:34,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:34,815 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:34,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 (30)] Ended with exit code 0 [2024-11-28 04:04:35,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 04:04:35,015 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:04:35,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:35,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1842010409, now seen corresponding path program 1 times [2024-11-28 04:04:35,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:04:35,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269674466] [2024-11-28 04:04:35,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:35,016 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 [2024-11-28 04:04:35,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:04:35,018 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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) [2024-11-28 04:04:35,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58608986-5cd4-4843-843a-b0f1b3ebe748/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 [2024-11-28 04:04:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:35,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-28 04:04:35,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:35,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:04:35,759 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 [2024-11-28 04:04:35,950 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:35,950 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 [2024-11-28 04:04:36,211 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:36,211 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 [2024-11-28 04:04:36,356 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:36,357 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 [2024-11-28 04:04:36,510 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:36,510 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 [2024-11-28 04:04:36,738 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:36,739 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 [2024-11-28 04:04:37,016 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:37,016 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 [2024-11-28 04:04:37,075 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:37,075 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 79 treesize of output 65 [2024-11-28 04:04:37,602 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:37,602 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 115 treesize of output 96 [2024-11-28 04:04:38,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:04:38,910 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 172 treesize of output 117 [2024-11-28 04:04:39,728 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 209 proven. 33 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-28 04:04:39,728 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:41,619 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:04:41,619 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:04:41,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269674466] [2024-11-28 04:04:41,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269674466] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:41,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:41,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [16] total 26 [2024-11-28 04:04:41,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009563577] [2024-11-28 04:04:41,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:41,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:04:41,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:04:41,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:04:41,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=521, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:04:41,621 INFO L87 Difference]: Start difference. First operand 658 states and 856 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14)