./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-57.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_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-57.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3555ba030faa46cc93354bed1e80ecee9aa6a6bf15f1b98ede8c01390cd3073e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 13:19:05,322 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 13:19:05,377 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-01 13:19:05,382 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 13:19:05,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 13:19:05,404 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 13:19:05,405 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 13:19:05,405 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 13:19:05,406 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 13:19:05,406 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 13:19:05,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 13:19:05,406 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 13:19:05,406 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 13:19:05,406 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 13:19:05,407 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 13:19:05,407 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 13:19:05,407 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 13:19:05,407 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 13:19:05,407 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 13:19:05,407 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 13:19:05,407 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 13:19:05,407 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 13:19:05,407 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 13:19:05,408 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 13:19:05,408 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 13:19:05,408 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 13:19:05,408 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 13:19:05,408 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 13:19:05,408 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 13:19:05,408 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:19:05,409 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:19:05,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:19:05,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:19:05,409 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 13:19:05,409 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:19:05,409 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:19:05,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:19:05,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:19:05,409 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 13:19:05,410 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 13:19:05,410 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 13:19:05,410 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 13:19:05,410 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 13:19:05,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 13:19:05,410 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 13:19:05,410 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 13:19:05,410 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 13:19:05,410 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 13:19:05,410 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_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3555ba030faa46cc93354bed1e80ecee9aa6a6bf15f1b98ede8c01390cd3073e [2024-12-01 13:19:05,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 13:19:05,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 13:19:05,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 13:19:05,647 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 13:19:05,648 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 13:19:05,649 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-57.i [2024-12-01 13:19:08,339 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/data/8de0daccc/a0c734f93a8741899b85c320155e60b5/FLAGa88ed016a [2024-12-01 13:19:08,553 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 13:19:08,554 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-57.i [2024-12-01 13:19:08,562 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/data/8de0daccc/a0c734f93a8741899b85c320155e60b5/FLAGa88ed016a [2024-12-01 13:19:08,915 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/data/8de0daccc/a0c734f93a8741899b85c320155e60b5 [2024-12-01 13:19:08,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 13:19:08,919 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 13:19:08,919 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 13:19:08,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 13:19:08,923 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 13:19:08,923 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:19:08" (1/1) ... [2024-12-01 13:19:08,924 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77fa213f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:08, skipping insertion in model container [2024-12-01 13:19:08,924 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:19:08" (1/1) ... [2024-12-01 13:19:08,937 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 13:19:09,075 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_1ceeff57-7260-4bab-87c6-84442d52f7e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-57.i[916,929] [2024-12-01 13:19:09,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:19:09,141 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 13:19:09,153 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_1ceeff57-7260-4bab-87c6-84442d52f7e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-57.i[916,929] [2024-12-01 13:19:09,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:19:09,207 INFO L204 MainTranslator]: Completed translation [2024-12-01 13:19:09,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:09 WrapperNode [2024-12-01 13:19:09,208 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 13:19:09,209 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 13:19:09,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 13:19:09,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 13:19:09,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:09" (1/1) ... [2024-12-01 13:19:09,228 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:09" (1/1) ... [2024-12-01 13:19:09,261 INFO L138 Inliner]: procedures = 30, calls = 140, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 413 [2024-12-01 13:19:09,262 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 13:19:09,262 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 13:19:09,262 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 13:19:09,262 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 13:19:09,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:09" (1/1) ... [2024-12-01 13:19:09,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:09" (1/1) ... [2024-12-01 13:19:09,277 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:09" (1/1) ... [2024-12-01 13:19:09,285 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-12-01 13:19:09,285 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:09" (1/1) ... [2024-12-01 13:19:09,285 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:09" (1/1) ... [2024-12-01 13:19:09,301 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:09" (1/1) ... [2024-12-01 13:19:09,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:09" (1/1) ... [2024-12-01 13:19:09,306 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:09" (1/1) ... [2024-12-01 13:19:09,308 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:09" (1/1) ... [2024-12-01 13:19:09,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:09" (1/1) ... [2024-12-01 13:19:09,314 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 13:19:09,315 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 13:19:09,315 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 13:19:09,315 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 13:19:09,316 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:09" (1/1) ... [2024-12-01 13:19:09,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:19:09,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:19:09,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 13:19:09,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 13:19:09,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 13:19:09,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-12-01 13:19:09,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-12-01 13:19:09,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-12-01 13:19:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-01 13:19:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-12-01 13:19:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-01 13:19:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-01 13:19:09,375 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-01 13:19:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-01 13:19:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 13:19:09,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 13:19:09,474 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 13:19:09,475 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 13:19:09,972 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-12-01 13:19:09,973 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 13:19:09,985 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 13:19:09,985 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-01 13:19:09,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:19:09 BoogieIcfgContainer [2024-12-01 13:19:09,986 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 13:19:09,988 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 13:19:09,988 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 13:19:09,993 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 13:19:09,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:19:08" (1/3) ... [2024-12-01 13:19:09,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c17f6cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:19:09, skipping insertion in model container [2024-12-01 13:19:09,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:19:09" (2/3) ... [2024-12-01 13:19:09,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c17f6cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:19:09, skipping insertion in model container [2024-12-01 13:19:09,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:19:09" (3/3) ... [2024-12-01 13:19:09,996 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-57.i [2024-12-01 13:19:10,013 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 13:19:10,014 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-57.i that has 2 procedures, 97 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-01 13:19:10,078 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 13:19:10,090 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;@39629d13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 13:19:10,090 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-01 13:19:10,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 76 states have (on average 1.394736842105263) internal successors, (106), 77 states have internal predecessors, (106), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-01 13:19:10,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-01 13:19:10,106 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:19:10,107 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:19:10,107 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:19:10,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:10,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1864968781, now seen corresponding path program 1 times [2024-12-01 13:19:10,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:19:10,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790279291] [2024-12-01 13:19:10,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:19:10,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:10,438 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-12-01 13:19:10,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:19:10,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790279291] [2024-12-01 13:19:10,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790279291] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:19:10,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046862789] [2024-12-01 13:19:10,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:19:10,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:19:10,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:19:10,443 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:19:10,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-01 13:19:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:10,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-01 13:19:10,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:19:10,693 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-12-01 13:19:10,693 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:19:10,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046862789] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:19:10,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:19:10,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-01 13:19:10,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826776216] [2024-12-01 13:19:10,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:19:10,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-01 13:19:10,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:19:10,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-01 13:19:10,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 13:19:10,717 INFO L87 Difference]: Start difference. First operand has 97 states, 76 states have (on average 1.394736842105263) internal successors, (106), 77 states have internal predecessors, (106), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-01 13:19:10,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:19:10,757 INFO L93 Difference]: Finished difference Result 187 states and 296 transitions. [2024-12-01 13:19:10,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-01 13:19:10,758 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 134 [2024-12-01 13:19:10,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:19:10,763 INFO L225 Difference]: With dead ends: 187 [2024-12-01 13:19:10,763 INFO L226 Difference]: Without dead ends: 93 [2024-12-01 13:19:10,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 13:19:10,769 INFO L435 NwaCegarLoop]: 135 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, 135 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:19:10,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:19:10,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-12-01 13:19:10,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-12-01 13:19:10,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 73 states have (on average 1.356164383561644) internal successors, (99), 73 states have internal predecessors, (99), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-01 13:19:10,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2024-12-01 13:19:10,810 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 134 [2024-12-01 13:19:10,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:19:10,810 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2024-12-01 13:19:10,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-01 13:19:10,811 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2024-12-01 13:19:10,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-01 13:19:10,813 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:19:10,814 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:19:10,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-01 13:19:11,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:19:11,015 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:19:11,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:11,015 INFO L85 PathProgramCache]: Analyzing trace with hash -367330217, now seen corresponding path program 1 times [2024-12-01 13:19:11,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:19:11,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548584685] [2024-12-01 13:19:11,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:19:11,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:11,954 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:19:11,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:19:11,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548584685] [2024-12-01 13:19:11,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548584685] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:19:11,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:19:11,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 13:19:11,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733961167] [2024-12-01 13:19:11,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:19:11,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 13:19:11,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:19:11,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 13:19:11,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:19:11,957 INFO L87 Difference]: Start difference. First operand 93 states and 135 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:19:12,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:19:12,362 INFO L93 Difference]: Finished difference Result 274 states and 400 transitions. [2024-12-01 13:19:12,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 13:19:12,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 134 [2024-12-01 13:19:12,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:19:12,365 INFO L225 Difference]: With dead ends: 274 [2024-12-01 13:19:12,365 INFO L226 Difference]: Without dead ends: 184 [2024-12-01 13:19:12,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:19:12,367 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 100 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:19:12,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 293 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 13:19:12,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-12-01 13:19:12,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 153. [2024-12-01 13:19:12,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 114 states have (on average 1.3070175438596492) internal successors, (149), 114 states have internal predecessors, (149), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-01 13:19:12,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 221 transitions. [2024-12-01 13:19:12,397 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 221 transitions. Word has length 134 [2024-12-01 13:19:12,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:19:12,398 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 221 transitions. [2024-12-01 13:19:12,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:19:12,398 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 221 transitions. [2024-12-01 13:19:12,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-01 13:19:12,400 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:19:12,400 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:19:12,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 13:19:12,400 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:19:12,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:12,401 INFO L85 PathProgramCache]: Analyzing trace with hash 686354215, now seen corresponding path program 1 times [2024-12-01 13:19:12,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:19:12,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712042469] [2024-12-01 13:19:12,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:19:12,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:12,600 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:19:12,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:19:12,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712042469] [2024-12-01 13:19:12,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712042469] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:19:12,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:19:12,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 13:19:12,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283043481] [2024-12-01 13:19:12,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:19:12,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 13:19:12,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:19:12,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 13:19:12,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:19:12,602 INFO L87 Difference]: Start difference. First operand 153 states and 221 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:19:12,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:19:12,637 INFO L93 Difference]: Finished difference Result 246 states and 357 transitions. [2024-12-01 13:19:12,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 13:19:12,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-12-01 13:19:12,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:19:12,639 INFO L225 Difference]: With dead ends: 246 [2024-12-01 13:19:12,639 INFO L226 Difference]: Without dead ends: 156 [2024-12-01 13:19:12,640 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 [2024-12-01 13:19:12,641 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 1 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:19:12,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 387 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:19:12,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-12-01 13:19:12,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 155. [2024-12-01 13:19:12,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 116 states have (on average 1.3017241379310345) internal successors, (151), 116 states have internal predecessors, (151), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-01 13:19:12,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 223 transitions. [2024-12-01 13:19:12,664 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 223 transitions. Word has length 141 [2024-12-01 13:19:12,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:19:12,664 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 223 transitions. [2024-12-01 13:19:12,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:19:12,665 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 223 transitions. [2024-12-01 13:19:12,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-01 13:19:12,667 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:19:12,667 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:19:12,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 13:19:12,668 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:19:12,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:12,668 INFO L85 PathProgramCache]: Analyzing trace with hash 688201257, now seen corresponding path program 1 times [2024-12-01 13:19:12,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:19:12,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965005993] [2024-12-01 13:19:12,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:19:12,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:13,316 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:19:13,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:19:13,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965005993] [2024-12-01 13:19:13,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965005993] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:19:13,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:19:13,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 13:19:13,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501136706] [2024-12-01 13:19:13,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:19:13,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:19:13,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:19:13,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:19:13,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:19:13,319 INFO L87 Difference]: Start difference. First operand 155 states and 223 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:19:13,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:19:13,732 INFO L93 Difference]: Finished difference Result 311 states and 451 transitions. [2024-12-01 13:19:13,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:19:13,733 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-12-01 13:19:13,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:19:13,735 INFO L225 Difference]: With dead ends: 311 [2024-12-01 13:19:13,735 INFO L226 Difference]: Without dead ends: 219 [2024-12-01 13:19:13,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-01 13:19:13,737 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 55 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:19:13,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 447 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 13:19:13,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-12-01 13:19:13,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 190. [2024-12-01 13:19:13,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 151 states have (on average 1.3509933774834437) internal successors, (204), 151 states have internal predecessors, (204), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-01 13:19:13,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 276 transitions. [2024-12-01 13:19:13,762 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 276 transitions. Word has length 141 [2024-12-01 13:19:13,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:19:13,763 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 276 transitions. [2024-12-01 13:19:13,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:19:13,763 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 276 transitions. [2024-12-01 13:19:13,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-01 13:19:13,765 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:19:13,766 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:19:13,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 13:19:13,766 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:19:13,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:13,767 INFO L85 PathProgramCache]: Analyzing trace with hash 946366695, now seen corresponding path program 1 times [2024-12-01 13:19:13,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:19:13,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215823246] [2024-12-01 13:19:13,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:19:13,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:14,771 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:19:14,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:19:14,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215823246] [2024-12-01 13:19:14,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215823246] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:19:14,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:19:14,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-01 13:19:14,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628555629] [2024-12-01 13:19:14,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:19:14,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 13:19:14,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:19:14,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 13:19:14,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 13:19:14,773 INFO L87 Difference]: Start difference. First operand 190 states and 276 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:19:15,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:19:15,584 INFO L93 Difference]: Finished difference Result 375 states and 543 transitions. [2024-12-01 13:19:15,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-01 13:19:15,585 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-12-01 13:19:15,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:19:15,587 INFO L225 Difference]: With dead ends: 375 [2024-12-01 13:19:15,588 INFO L226 Difference]: Without dead ends: 262 [2024-12-01 13:19:15,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:19:15,589 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 201 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-01 13:19:15,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 494 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-01 13:19:15,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-12-01 13:19:15,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 180. [2024-12-01 13:19:15,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 141 states have (on average 1.3475177304964538) internal successors, (190), 141 states have internal predecessors, (190), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-01 13:19:15,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 262 transitions. [2024-12-01 13:19:15,612 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 262 transitions. Word has length 141 [2024-12-01 13:19:15,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:19:15,613 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 262 transitions. [2024-12-01 13:19:15,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:19:15,613 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 262 transitions. [2024-12-01 13:19:15,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-01 13:19:15,615 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:19:15,615 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:19:15,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-01 13:19:15,615 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:19:15,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:15,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1170047832, now seen corresponding path program 1 times [2024-12-01 13:19:15,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:19:15,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999078877] [2024-12-01 13:19:15,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:19:15,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:16,149 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:19:16,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:19:16,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999078877] [2024-12-01 13:19:16,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999078877] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:19:16,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:19:16,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:19:16,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460043888] [2024-12-01 13:19:16,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:19:16,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:19:16,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:19:16,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:19:16,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:19:16,151 INFO L87 Difference]: Start difference. First operand 180 states and 262 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:19:16,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:19:16,600 INFO L93 Difference]: Finished difference Result 336 states and 489 transitions. [2024-12-01 13:19:16,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:19:16,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-12-01 13:19:16,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:19:16,604 INFO L225 Difference]: With dead ends: 336 [2024-12-01 13:19:16,604 INFO L226 Difference]: Without dead ends: 223 [2024-12-01 13:19:16,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:19:16,605 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 38 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:19:16,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 366 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 13:19:16,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-12-01 13:19:16,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 197. [2024-12-01 13:19:16,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 158 states have (on average 1.360759493670886) internal successors, (215), 158 states have internal predecessors, (215), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-01 13:19:16,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 287 transitions. [2024-12-01 13:19:16,633 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 287 transitions. Word has length 144 [2024-12-01 13:19:16,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:19:16,634 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 287 transitions. [2024-12-01 13:19:16,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:19:16,634 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 287 transitions. [2024-12-01 13:19:16,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-01 13:19:16,636 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:19:16,637 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:19:16,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-01 13:19:16,637 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:19:16,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:16,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1871112410, now seen corresponding path program 1 times [2024-12-01 13:19:16,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:19:16,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771004543] [2024-12-01 13:19:16,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:19:16,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:18,283 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:19:18,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:19:18,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771004543] [2024-12-01 13:19:18,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771004543] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:19:18,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:19:18,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 13:19:18,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157856040] [2024-12-01 13:19:18,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:19:18,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:19:18,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:19:18,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:19:18,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:19:18,286 INFO L87 Difference]: Start difference. First operand 197 states and 287 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-01 13:19:18,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:19:18,808 INFO L93 Difference]: Finished difference Result 442 states and 652 transitions. [2024-12-01 13:19:18,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:19:18,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2024-12-01 13:19:18,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:19:18,811 INFO L225 Difference]: With dead ends: 442 [2024-12-01 13:19:18,811 INFO L226 Difference]: Without dead ends: 306 [2024-12-01 13:19:18,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-01 13:19:18,812 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 60 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-01 13:19:18,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 391 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-01 13:19:18,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-12-01 13:19:18,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 226. [2024-12-01 13:19:18,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 187 states have (on average 1.3796791443850267) internal successors, (258), 187 states have internal predecessors, (258), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-01 13:19:18,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 330 transitions. [2024-12-01 13:19:18,832 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 330 transitions. Word has length 144 [2024-12-01 13:19:18,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:19:18,833 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 330 transitions. [2024-12-01 13:19:18,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-01 13:19:18,833 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 330 transitions. [2024-12-01 13:19:18,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-01 13:19:18,835 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:19:18,835 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:19:18,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-01 13:19:18,835 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:19:18,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:18,836 INFO L85 PathProgramCache]: Analyzing trace with hash 2089967128, now seen corresponding path program 1 times [2024-12-01 13:19:18,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:19:18,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783076771] [2024-12-01 13:19:18,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:19:18,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:51,688 WARN L286 SmtUtils]: Spent 5.39s on a formula simplification that was a NOOP. DAG size: 786 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-01 13:19:51,758 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:19:51,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:19:51,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783076771] [2024-12-01 13:19:51,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783076771] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:19:51,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:19:51,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 13:19:51,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200089523] [2024-12-01 13:19:51,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:19:51,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:19:51,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:19:51,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:19:51,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:19:51,761 INFO L87 Difference]: Start difference. First operand 226 states and 330 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:19:57,887 WARN L286 SmtUtils]: Spent 5.40s on a formula simplification that was a NOOP. DAG size: 790 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-01 13:20:03,352 WARN L286 SmtUtils]: Spent 5.37s on a formula simplification that was a NOOP. DAG size: 788 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-01 13:20:08,847 WARN L286 SmtUtils]: Spent 5.42s on a formula simplification that was a NOOP. DAG size: 788 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-01 13:20:09,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:09,982 INFO L93 Difference]: Finished difference Result 467 states and 679 transitions. [2024-12-01 13:20:09,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:20:09,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-12-01 13:20:09,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:09,985 INFO L225 Difference]: With dead ends: 467 [2024-12-01 13:20:09,985 INFO L226 Difference]: Without dead ends: 321 [2024-12-01 13:20:09,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 21.8s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-01 13:20:09,986 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 69 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:09,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 625 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-01 13:20:09,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-12-01 13:20:10,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 318. [2024-12-01 13:20:10,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 268 states have (on average 1.3805970149253732) internal successors, (370), 269 states have internal predecessors, (370), 46 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-01 13:20:10,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 462 transitions. [2024-12-01 13:20:10,061 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 462 transitions. Word has length 144 [2024-12-01 13:20:10,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:10,061 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 462 transitions. [2024-12-01 13:20:10,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:10,062 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 462 transitions. [2024-12-01 13:20:10,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-01 13:20:10,063 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:10,064 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:10,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-01 13:20:10,064 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:10,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:10,065 INFO L85 PathProgramCache]: Analyzing trace with hash 565862395, now seen corresponding path program 1 times [2024-12-01 13:20:10,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:10,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760598934] [2024-12-01 13:20:10,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:10,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:10,292 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:10,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:10,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760598934] [2024-12-01 13:20:10,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760598934] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:10,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:10,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:20:10,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858862911] [2024-12-01 13:20:10,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:10,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:20:10,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:10,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:20:10,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:10,294 INFO L87 Difference]: Start difference. First operand 318 states and 462 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:10,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:10,658 INFO L93 Difference]: Finished difference Result 639 states and 931 transitions. [2024-12-01 13:20:10,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:20:10,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-12-01 13:20:10,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:10,661 INFO L225 Difference]: With dead ends: 639 [2024-12-01 13:20:10,662 INFO L226 Difference]: Without dead ends: 410 [2024-12-01 13:20:10,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:20:10,663 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 56 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:10,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 471 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 13:20:10,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-12-01 13:20:10,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 396. [2024-12-01 13:20:10,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 341 states have (on average 1.3636363636363635) internal successors, (465), 343 states have internal predecessors, (465), 50 states have call successors, (50), 4 states have call predecessors, (50), 4 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-01 13:20:10,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 565 transitions. [2024-12-01 13:20:10,749 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 565 transitions. Word has length 145 [2024-12-01 13:20:10,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:10,749 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 565 transitions. [2024-12-01 13:20:10,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:10,749 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 565 transitions. [2024-12-01 13:20:10,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-01 13:20:10,750 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:10,751 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:10,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-01 13:20:10,751 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:10,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:10,751 INFO L85 PathProgramCache]: Analyzing trace with hash -714001283, now seen corresponding path program 1 times [2024-12-01 13:20:10,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:10,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660649358] [2024-12-01 13:20:10,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:10,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:10,945 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:10,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:10,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660649358] [2024-12-01 13:20:10,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660649358] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:10,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:10,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:20:10,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085639002] [2024-12-01 13:20:10,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:10,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:20:10,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:10,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:20:10,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:10,947 INFO L87 Difference]: Start difference. First operand 396 states and 565 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:11,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:11,403 INFO L93 Difference]: Finished difference Result 795 states and 1124 transitions. [2024-12-01 13:20:11,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:20:11,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-12-01 13:20:11,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:11,407 INFO L225 Difference]: With dead ends: 795 [2024-12-01 13:20:11,407 INFO L226 Difference]: Without dead ends: 490 [2024-12-01 13:20:11,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:20:11,409 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 51 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:11,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 428 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 13:20:11,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-12-01 13:20:11,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 487. [2024-12-01 13:20:11,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 427 states have (on average 1.3559718969555035) internal successors, (579), 430 states have internal predecessors, (579), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-01 13:20:11,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 683 transitions. [2024-12-01 13:20:11,545 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 683 transitions. Word has length 145 [2024-12-01 13:20:11,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:11,546 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 683 transitions. [2024-12-01 13:20:11,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:11,546 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 683 transitions. [2024-12-01 13:20:11,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-01 13:20:11,547 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:11,547 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:11,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-01 13:20:11,548 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:11,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:11,548 INFO L85 PathProgramCache]: Analyzing trace with hash 885756729, now seen corresponding path program 1 times [2024-12-01 13:20:11,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:11,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827798894] [2024-12-01 13:20:11,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:11,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:11,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:11,833 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:11,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:11,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827798894] [2024-12-01 13:20:11,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827798894] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:11,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:11,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:20:11,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191439293] [2024-12-01 13:20:11,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:11,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:20:11,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:11,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:20:11,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:11,834 INFO L87 Difference]: Start difference. First operand 487 states and 683 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:12,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:12,149 INFO L93 Difference]: Finished difference Result 857 states and 1195 transitions. [2024-12-01 13:20:12,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:20:12,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-12-01 13:20:12,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:12,152 INFO L225 Difference]: With dead ends: 857 [2024-12-01 13:20:12,152 INFO L226 Difference]: Without dead ends: 468 [2024-12-01 13:20:12,153 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:20:12,153 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 96 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:12,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 362 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 13:20:12,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-12-01 13:20:12,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 466. [2024-12-01 13:20:12,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 406 states have (on average 1.3423645320197044) internal successors, (545), 409 states have internal predecessors, (545), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-01 13:20:12,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 649 transitions. [2024-12-01 13:20:12,249 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 649 transitions. Word has length 145 [2024-12-01 13:20:12,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:12,250 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 649 transitions. [2024-12-01 13:20:12,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:12,250 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 649 transitions. [2024-12-01 13:20:12,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-01 13:20:12,251 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:12,251 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:12,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-01 13:20:12,251 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:12,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:12,252 INFO L85 PathProgramCache]: Analyzing trace with hash 2109166017, now seen corresponding path program 1 times [2024-12-01 13:20:12,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:12,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424639039] [2024-12-01 13:20:12,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:12,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:12,315 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:12,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:12,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424639039] [2024-12-01 13:20:12,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424639039] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:12,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:12,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:20:12,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196844545] [2024-12-01 13:20:12,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:12,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:20:12,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:12,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:20:12,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:12,317 INFO L87 Difference]: Start difference. First operand 466 states and 649 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:12,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:12,412 INFO L93 Difference]: Finished difference Result 838 states and 1164 transitions. [2024-12-01 13:20:12,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:20:12,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-12-01 13:20:12,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:12,415 INFO L225 Difference]: With dead ends: 838 [2024-12-01 13:20:12,415 INFO L226 Difference]: Without dead ends: 470 [2024-12-01 13:20:12,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:12,416 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:12,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 261 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:20:12,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-12-01 13:20:12,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2024-12-01 13:20:12,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 410 states have (on average 1.3390243902439025) internal successors, (549), 413 states have internal predecessors, (549), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-01 13:20:12,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 653 transitions. [2024-12-01 13:20:12,514 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 653 transitions. Word has length 147 [2024-12-01 13:20:12,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:12,514 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 653 transitions. [2024-12-01 13:20:12,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:12,514 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 653 transitions. [2024-12-01 13:20:12,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-01 13:20:12,515 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:12,515 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:12,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-01 13:20:12,515 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:12,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:12,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1927635841, now seen corresponding path program 1 times [2024-12-01 13:20:12,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:12,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020505267] [2024-12-01 13:20:12,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:12,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:12,676 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-01 13:20:12,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:12,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020505267] [2024-12-01 13:20:12,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020505267] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:20:12,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95664661] [2024-12-01 13:20:12,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:12,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:20:12,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:20:12,679 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:20:12,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-01 13:20:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:12,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-01 13:20:12,891 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:12,933 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:12,933 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:20:12,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95664661] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:12,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:20:12,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-12-01 13:20:12,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128755856] [2024-12-01 13:20:12,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:12,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:20:12,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:12,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:20:12,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:20:12,935 INFO L87 Difference]: Start difference. First operand 470 states and 653 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:13,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:13,087 INFO L93 Difference]: Finished difference Result 858 states and 1184 transitions. [2024-12-01 13:20:13,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:20:13,087 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-12-01 13:20:13,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:13,090 INFO L225 Difference]: With dead ends: 858 [2024-12-01 13:20:13,090 INFO L226 Difference]: Without dead ends: 486 [2024-12-01 13:20:13,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:20:13,091 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:13,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 644 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:20:13,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-12-01 13:20:13,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 480. [2024-12-01 13:20:13,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 420 states have (on average 1.3309523809523809) internal successors, (559), 423 states have internal predecessors, (559), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-01 13:20:13,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 663 transitions. [2024-12-01 13:20:13,200 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 663 transitions. Word has length 147 [2024-12-01 13:20:13,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:13,201 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 663 transitions. [2024-12-01 13:20:13,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:13,201 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 663 transitions. [2024-12-01 13:20:13,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-01 13:20:13,202 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:13,202 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:13,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-01 13:20:13,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-01 13:20:13,403 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:13,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:13,403 INFO L85 PathProgramCache]: Analyzing trace with hash -240080967, now seen corresponding path program 1 times [2024-12-01 13:20:13,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:13,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326860729] [2024-12-01 13:20:13,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:13,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 13:20:13,472 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-01 13:20:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 13:20:13,561 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-01 13:20:13,561 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-01 13:20:13,562 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-01 13:20:13,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-01 13:20:13,566 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:13,622 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-01 13:20:13,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 01:20:13 BoogieIcfgContainer [2024-12-01 13:20:13,625 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-01 13:20:13,625 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-01 13:20:13,625 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-01 13:20:13,625 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-01 13:20:13,626 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:19:09" (3/4) ... [2024-12-01 13:20:13,628 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-01 13:20:13,628 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-01 13:20:13,629 INFO L158 Benchmark]: Toolchain (without parser) took 64710.42ms. Allocated memory was 117.4MB in the beginning and 570.4MB in the end (delta: 453.0MB). Free memory was 92.9MB in the beginning and 481.2MB in the end (delta: -388.3MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. [2024-12-01 13:20:13,629 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:20:13,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.81ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 77.0MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-01 13:20:13,630 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.72ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 74.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:20:13,630 INFO L158 Benchmark]: Boogie Preprocessor took 52.00ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 71.1MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 13:20:13,630 INFO L158 Benchmark]: RCFGBuilder took 670.89ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 42.8MB in the end (delta: 28.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-01 13:20:13,630 INFO L158 Benchmark]: TraceAbstraction took 63636.90ms. Allocated memory was 117.4MB in the beginning and 570.4MB in the end (delta: 453.0MB). Free memory was 42.3MB in the beginning and 481.3MB in the end (delta: -439.0MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2024-12-01 13:20:13,631 INFO L158 Benchmark]: Witness Printer took 3.20ms. Allocated memory is still 570.4MB. Free memory was 481.3MB in the beginning and 481.2MB in the end (delta: 76.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 13:20:13,633 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.81ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 77.0MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.72ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 74.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.00ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 71.1MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 670.89ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 42.8MB in the end (delta: 28.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 63636.90ms. Allocated memory was 117.4MB in the beginning and 570.4MB in the end (delta: 453.0MB). Free memory was 42.3MB in the beginning and 481.3MB in the end (delta: -439.0MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Witness Printer took 3.20ms. Allocated memory is still 570.4MB. Free memory was 481.3MB in the beginning and 481.2MB in the end (delta: 76.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 119. Possible FailurePath: [L37] unsigned char isInitial = 0; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 1, 0, 0, 1, 64, 4, -4, 32, 32, -64, 50, 16, 63.5 }; [L53] signed char last_1_WrapperStruct00_var_1_9 = 64; [L54] signed char last_1_WrapperStruct00_var_1_14 = -64; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L123] isInitial = 1 [L124] FCALL initially() [L126] CALL updateLastVariables() [L115] EXPR WrapperStruct00.var_1_9 [L115] last_1_WrapperStruct00_var_1_9 = WrapperStruct00.var_1_9 [L116] EXPR WrapperStruct00.var_1_14 [L116] last_1_WrapperStruct00_var_1_14 = WrapperStruct00.var_1_14 [L126] RET updateLastVariables() [L127] CALL updateVariables() [L86] WrapperStruct00.var_1_4 = __VERIFIER_nondet_uchar() [L87] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L87] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L87] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L88] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L88] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L88] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L89] WrapperStruct00.var_1_5 = __VERIFIER_nondet_uchar() [L90] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L90] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L90] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L91] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L92] WrapperStruct00.var_1_6 = __VERIFIER_nondet_uchar() [L93] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L93] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L94] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L94] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L95] WrapperStruct00.var_1_10 = __VERIFIER_nondet_char() [L96] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= -127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= -127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L97] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L97] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L98] WrapperStruct00.var_1_11 = __VERIFIER_nondet_char() [L99] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_11 >= -127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L99] RET assume_abort_if_not(WrapperStruct00.var_1_11 >= -127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L100] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L100] CALL assume_abort_if_not(WrapperStruct00.var_1_11 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L100] RET assume_abort_if_not(WrapperStruct00.var_1_11 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L101] WrapperStruct00.var_1_12 = __VERIFIER_nondet_char() [L102] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= -1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L102] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= -1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L103] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L103] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L104] WrapperStruct00.var_1_13 = __VERIFIER_nondet_char() [L105] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_13 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L105] RET assume_abort_if_not(WrapperStruct00.var_1_13 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L106] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L106] CALL assume_abort_if_not(WrapperStruct00.var_1_13 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L106] RET assume_abort_if_not(WrapperStruct00.var_1_13 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L107] WrapperStruct00.var_1_15 = __VERIFIER_nondet_char() [L108] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_15 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L108] RET assume_abort_if_not(WrapperStruct00.var_1_15 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L109] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L109] CALL assume_abort_if_not(WrapperStruct00.var_1_15 <= 64) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L109] RET assume_abort_if_not(WrapperStruct00.var_1_15 <= 64) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L110] WrapperStruct00.var_1_16 = __VERIFIER_nondet_char() [L111] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L111] CALL assume_abort_if_not(WrapperStruct00.var_1_16 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L111] RET assume_abort_if_not(WrapperStruct00.var_1_16 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L112] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L112] CALL assume_abort_if_not(WrapperStruct00.var_1_16 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L112] RET assume_abort_if_not(WrapperStruct00.var_1_16 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L127] RET updateVariables() [L128] CALL step() [L58] EXPR WrapperStruct00.var_1_6 [L58] unsigned char stepLocal_0 = WrapperStruct00.var_1_6; [L59] COND TRUE ! (last_1_WrapperStruct00_var_1_14 >= last_1_WrapperStruct00_var_1_9) [L60] EXPR WrapperStruct00.var_1_4 [L60] EXPR WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64, stepLocal_0=513] [L60] COND TRUE (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5) && stepLocal_0 [L61] WrapperStruct00.var_1_1 = ((((last_1_WrapperStruct00_var_1_9) < (last_1_WrapperStruct00_var_1_14)) ? (last_1_WrapperStruct00_var_1_9) : (last_1_WrapperStruct00_var_1_14))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L68] EXPR WrapperStruct00.var_1_15 [L68] EXPR WrapperStruct00.var_1_16 [L68] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L68] EXPR ((64) > (WrapperStruct00.var_1_13)) ? (64) : (WrapperStruct00.var_1_13) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L68] signed long int stepLocal_3 = (WrapperStruct00.var_1_15 + WrapperStruct00.var_1_16) - ((((64) > (WrapperStruct00.var_1_13)) ? (64) : (WrapperStruct00.var_1_13))); [L69] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64, stepLocal_3=0] [L69] COND TRUE WrapperStruct00.var_1_12 < stepLocal_3 [L70] EXPR WrapperStruct00.var_1_16 [L70] EXPR WrapperStruct00.var_1_13 [L70] WrapperStruct00.var_1_14 = ((64 - WrapperStruct00.var_1_16) - WrapperStruct00.var_1_13) [L74] WrapperStruct00.var_1_17 = 128.91f [L75] EXPR WrapperStruct00.var_1_14 [L75] EXPR WrapperStruct00.var_1_1 [L75] unsigned char stepLocal_2 = WrapperStruct00.var_1_14 == WrapperStruct00.var_1_1; [L76] EXPR WrapperStruct00.var_1_5 [L76] unsigned char stepLocal_1 = WrapperStruct00.var_1_5; [L77] stepLocal_1 && WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64, stepLocal_2=0] [L77] COND FALSE !(stepLocal_1 && WrapperStruct00.var_1_4) [L82] EXPR WrapperStruct00.var_1_12 [L82] EXPR WrapperStruct00.var_1_13 [L82] WrapperStruct00.var_1_9 = (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_13) [L128] RET step() [L129] CALL, EXPR property() [L119] EXPR (! (last_1_WrapperStruct00_var_1_14 >= last_1_WrapperStruct00_var_1_9)) ? (((WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5) && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_1 == ((signed long int) ((((last_1_WrapperStruct00_var_1_9) < (last_1_WrapperStruct00_var_1_14)) ? (last_1_WrapperStruct00_var_1_9) : (last_1_WrapperStruct00_var_1_14))))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14)) [L119] EXPR WrapperStruct00.var_1_4 [L119] EXPR WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L119] EXPR (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5) && WrapperStruct00.var_1_6 [L119] EXPR WrapperStruct00.var_1_6 [L119] EXPR (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5) && WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L119] EXPR ((WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5) && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_1 == ((signed long int) ((((last_1_WrapperStruct00_var_1_9) < (last_1_WrapperStruct00_var_1_14)) ? (last_1_WrapperStruct00_var_1_9) : (last_1_WrapperStruct00_var_1_14))))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14)) [L119] EXPR WrapperStruct00.var_1_1 [L119] EXPR ((WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5) && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_1 == ((signed long int) ((((last_1_WrapperStruct00_var_1_9) < (last_1_WrapperStruct00_var_1_14)) ? (last_1_WrapperStruct00_var_1_9) : (last_1_WrapperStruct00_var_1_14))))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L119] EXPR (! (last_1_WrapperStruct00_var_1_14 >= last_1_WrapperStruct00_var_1_9)) ? (((WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5) && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_1 == ((signed long int) ((((last_1_WrapperStruct00_var_1_9) < (last_1_WrapperStruct00_var_1_14)) ? (last_1_WrapperStruct00_var_1_9) : (last_1_WrapperStruct00_var_1_14))))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L119] EXPR ((! (last_1_WrapperStruct00_var_1_14 >= last_1_WrapperStruct00_var_1_9)) ? (((WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5) && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_1 == ((signed long int) ((((last_1_WrapperStruct00_var_1_9) < (last_1_WrapperStruct00_var_1_14)) ? (last_1_WrapperStruct00_var_1_9) : (last_1_WrapperStruct00_var_1_14))))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14))) && ((WrapperStruct00.var_1_5 && WrapperStruct00.var_1_4) ? ((WrapperStruct00.var_1_6 || (WrapperStruct00.var_1_14 == WrapperStruct00.var_1_1)) ? (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : 1) : (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_13)))) [L119] EXPR WrapperStruct00.var_1_5 [L119] EXPR WrapperStruct00.var_1_5 && WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L119] EXPR (WrapperStruct00.var_1_5 && WrapperStruct00.var_1_4) ? ((WrapperStruct00.var_1_6 || (WrapperStruct00.var_1_14 == WrapperStruct00.var_1_1)) ? (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : 1) : (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_13))) [L119] EXPR WrapperStruct00.var_1_9 [L119] EXPR WrapperStruct00.var_1_12 [L119] EXPR WrapperStruct00.var_1_13 [L119] EXPR (WrapperStruct00.var_1_5 && WrapperStruct00.var_1_4) ? ((WrapperStruct00.var_1_6 || (WrapperStruct00.var_1_14 == WrapperStruct00.var_1_1)) ? (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : 1) : (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_13))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L119] EXPR ((! (last_1_WrapperStruct00_var_1_14 >= last_1_WrapperStruct00_var_1_9)) ? (((WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5) && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_1 == ((signed long int) ((((last_1_WrapperStruct00_var_1_9) < (last_1_WrapperStruct00_var_1_14)) ? (last_1_WrapperStruct00_var_1_9) : (last_1_WrapperStruct00_var_1_14))))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14))) && ((WrapperStruct00.var_1_5 && WrapperStruct00.var_1_4) ? ((WrapperStruct00.var_1_6 || (WrapperStruct00.var_1_14 == WrapperStruct00.var_1_1)) ? (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : 1) : (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_13)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L119] EXPR (((! (last_1_WrapperStruct00_var_1_14 >= last_1_WrapperStruct00_var_1_9)) ? (((WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5) && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_1 == ((signed long int) ((((last_1_WrapperStruct00_var_1_9) < (last_1_WrapperStruct00_var_1_14)) ? (last_1_WrapperStruct00_var_1_9) : (last_1_WrapperStruct00_var_1_14))))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14))) && ((WrapperStruct00.var_1_5 && WrapperStruct00.var_1_4) ? ((WrapperStruct00.var_1_6 || (WrapperStruct00.var_1_14 == WrapperStruct00.var_1_1)) ? (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : 1) : (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_13))))) && ((WrapperStruct00.var_1_12 < ((WrapperStruct00.var_1_15 + WrapperStruct00.var_1_16) - ((((64) > (WrapperStruct00.var_1_13)) ? (64) : (WrapperStruct00.var_1_13))))) ? (WrapperStruct00.var_1_14 == ((signed char) ((64 - WrapperStruct00.var_1_16) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_14 == ((signed char) ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11)))))) [L119] EXPR WrapperStruct00.var_1_12 [L119] EXPR WrapperStruct00.var_1_15 [L119] EXPR WrapperStruct00.var_1_16 [L119] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L119] EXPR ((64) > (WrapperStruct00.var_1_13)) ? (64) : (WrapperStruct00.var_1_13) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L119] EXPR (WrapperStruct00.var_1_12 < ((WrapperStruct00.var_1_15 + WrapperStruct00.var_1_16) - ((((64) > (WrapperStruct00.var_1_13)) ? (64) : (WrapperStruct00.var_1_13))))) ? (WrapperStruct00.var_1_14 == ((signed char) ((64 - WrapperStruct00.var_1_16) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_14 == ((signed char) ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) [L119] EXPR WrapperStruct00.var_1_14 [L119] EXPR WrapperStruct00.var_1_16 [L119] EXPR WrapperStruct00.var_1_13 [L119] EXPR (WrapperStruct00.var_1_12 < ((WrapperStruct00.var_1_15 + WrapperStruct00.var_1_16) - ((((64) > (WrapperStruct00.var_1_13)) ? (64) : (WrapperStruct00.var_1_13))))) ? (WrapperStruct00.var_1_14 == ((signed char) ((64 - WrapperStruct00.var_1_16) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_14 == ((signed char) ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L119] EXPR (((! (last_1_WrapperStruct00_var_1_14 >= last_1_WrapperStruct00_var_1_9)) ? (((WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5) && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_1 == ((signed long int) ((((last_1_WrapperStruct00_var_1_9) < (last_1_WrapperStruct00_var_1_14)) ? (last_1_WrapperStruct00_var_1_9) : (last_1_WrapperStruct00_var_1_14))))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14))) && ((WrapperStruct00.var_1_5 && WrapperStruct00.var_1_4) ? ((WrapperStruct00.var_1_6 || (WrapperStruct00.var_1_14 == WrapperStruct00.var_1_1)) ? (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : 1) : (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_13))))) && ((WrapperStruct00.var_1_12 < ((WrapperStruct00.var_1_15 + WrapperStruct00.var_1_16) - ((((64) > (WrapperStruct00.var_1_13)) ? (64) : (WrapperStruct00.var_1_13))))) ? (WrapperStruct00.var_1_14 == ((signed char) ((64 - WrapperStruct00.var_1_16) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_14 == ((signed char) ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11)))))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L119] EXPR ((((! (last_1_WrapperStruct00_var_1_14 >= last_1_WrapperStruct00_var_1_9)) ? (((WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5) && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_1 == ((signed long int) ((((last_1_WrapperStruct00_var_1_9) < (last_1_WrapperStruct00_var_1_14)) ? (last_1_WrapperStruct00_var_1_9) : (last_1_WrapperStruct00_var_1_14))))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14))) && ((WrapperStruct00.var_1_5 && WrapperStruct00.var_1_4) ? ((WrapperStruct00.var_1_6 || (WrapperStruct00.var_1_14 == WrapperStruct00.var_1_1)) ? (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : 1) : (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_13))))) && ((WrapperStruct00.var_1_12 < ((WrapperStruct00.var_1_15 + WrapperStruct00.var_1_16) - ((((64) > (WrapperStruct00.var_1_13)) ? (64) : (WrapperStruct00.var_1_13))))) ? (WrapperStruct00.var_1_14 == ((signed char) ((64 - WrapperStruct00.var_1_16) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_14 == ((signed char) ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))))) && (WrapperStruct00.var_1_17 == ((float) 128.91f)) [L119] EXPR WrapperStruct00.var_1_17 [L119] EXPR ((((! (last_1_WrapperStruct00_var_1_14 >= last_1_WrapperStruct00_var_1_9)) ? (((WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5) && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_1 == ((signed long int) ((((last_1_WrapperStruct00_var_1_9) < (last_1_WrapperStruct00_var_1_14)) ? (last_1_WrapperStruct00_var_1_9) : (last_1_WrapperStruct00_var_1_14))))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14))) && ((WrapperStruct00.var_1_5 && WrapperStruct00.var_1_4) ? ((WrapperStruct00.var_1_6 || (WrapperStruct00.var_1_14 == WrapperStruct00.var_1_1)) ? (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : 1) : (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_13))))) && ((WrapperStruct00.var_1_12 < ((WrapperStruct00.var_1_15 + WrapperStruct00.var_1_16) - ((((64) > (WrapperStruct00.var_1_13)) ? (64) : (WrapperStruct00.var_1_13))))) ? (WrapperStruct00.var_1_14 == ((signed char) ((64 - WrapperStruct00.var_1_16) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_14 == ((signed char) ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))))) && (WrapperStruct00.var_1_17 == ((float) 128.91f)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L119-L120] return ((((! (last_1_WrapperStruct00_var_1_14 >= last_1_WrapperStruct00_var_1_9)) ? (((WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5) && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_1 == ((signed long int) ((((last_1_WrapperStruct00_var_1_9) < (last_1_WrapperStruct00_var_1_14)) ? (last_1_WrapperStruct00_var_1_9) : (last_1_WrapperStruct00_var_1_14))))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14))) : (WrapperStruct00.var_1_1 == ((signed long int) last_1_WrapperStruct00_var_1_14))) && ((WrapperStruct00.var_1_5 && WrapperStruct00.var_1_4) ? ((WrapperStruct00.var_1_6 || (WrapperStruct00.var_1_14 == WrapperStruct00.var_1_1)) ? (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : 1) : (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_13))))) && ((WrapperStruct00.var_1_12 < ((WrapperStruct00.var_1_15 + WrapperStruct00.var_1_16) - ((((64) > (WrapperStruct00.var_1_13)) ? (64) : (WrapperStruct00.var_1_13))))) ? (WrapperStruct00.var_1_14 == ((signed char) ((64 - WrapperStruct00.var_1_16) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_14 == ((signed char) ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))))) && (WrapperStruct00.var_1_17 == ((float) 128.91f)) ; [L129] RET, EXPR property() [L129] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=-64, last_1_WrapperStruct00_var_1_9=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 63.5s, OverallIterations: 14, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 22.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 728 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 727 mSDsluCounter, 5304 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3684 mSDsCounter, 165 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2135 IncrementalHoareTripleChecker+Invalid, 2300 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 165 mSolverCounterUnsat, 1620 mSDtfsCounter, 2135 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 403 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 22.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=487occurred in iteration=10, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 277 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 38.2s InterpolantComputationTime, 2280 NumberOfCodeBlocks, 2280 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2118 ConstructedInterpolants, 0 QuantifiedInterpolants, 79908 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1018 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 9095/9180 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 [2024-12-01 13:20:13,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/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_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-57.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3555ba030faa46cc93354bed1e80ecee9aa6a6bf15f1b98ede8c01390cd3073e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 13:20:15,715 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 13:20:15,809 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-01 13:20:15,816 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 13:20:15,816 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 13:20:15,839 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 13:20:15,840 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 13:20:15,840 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 13:20:15,841 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 13:20:15,841 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 13:20:15,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 13:20:15,841 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 13:20:15,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 13:20:15,842 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 13:20:15,842 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 13:20:15,842 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 13:20:15,842 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 13:20:15,842 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 13:20:15,842 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 13:20:15,843 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 13:20:15,843 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 13:20:15,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 13:20:15,843 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 13:20:15,843 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-01 13:20:15,843 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-01 13:20:15,843 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-01 13:20:15,843 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 13:20:15,843 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 13:20:15,843 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 13:20:15,843 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 13:20:15,843 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 13:20:15,843 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:20:15,844 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:20:15,844 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:20:15,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:20:15,844 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 13:20:15,844 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:20:15,844 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:20:15,844 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:20:15,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:20:15,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 13:20:15,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 13:20:15,844 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 13:20:15,845 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 13:20:15,845 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-01 13:20:15,845 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-01 13:20:15,845 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 13:20:15,845 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 13:20:15,845 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 13:20:15,845 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 13:20:15,845 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_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3555ba030faa46cc93354bed1e80ecee9aa6a6bf15f1b98ede8c01390cd3073e [2024-12-01 13:20:16,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 13:20:16,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 13:20:16,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 13:20:16,126 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 13:20:16,126 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 13:20:16,127 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-57.i [2024-12-01 13:20:18,979 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/data/5e96d1e8d/214ff5fb31ab4ac8a7112753b026520d/FLAGec00e8a2a [2024-12-01 13:20:19,182 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 13:20:19,182 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-57.i [2024-12-01 13:20:19,191 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/data/5e96d1e8d/214ff5fb31ab4ac8a7112753b026520d/FLAGec00e8a2a [2024-12-01 13:20:19,207 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/data/5e96d1e8d/214ff5fb31ab4ac8a7112753b026520d [2024-12-01 13:20:19,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 13:20:19,211 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 13:20:19,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 13:20:19,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 13:20:19,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 13:20:19,219 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:20:19" (1/1) ... [2024-12-01 13:20:19,220 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374abc1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:19, skipping insertion in model container [2024-12-01 13:20:19,220 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:20:19" (1/1) ... [2024-12-01 13:20:19,238 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 13:20:19,375 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_1ceeff57-7260-4bab-87c6-84442d52f7e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-57.i[916,929] [2024-12-01 13:20:19,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:20:19,438 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 13:20:19,446 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_1ceeff57-7260-4bab-87c6-84442d52f7e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-57.i[916,929] [2024-12-01 13:20:19,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:20:19,512 INFO L204 MainTranslator]: Completed translation [2024-12-01 13:20:19,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:19 WrapperNode [2024-12-01 13:20:19,513 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 13:20:19,514 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 13:20:19,514 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 13:20:19,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 13:20:19,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:19" (1/1) ... [2024-12-01 13:20:19,537 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:19" (1/1) ... [2024-12-01 13:20:19,573 INFO L138 Inliner]: procedures = 34, calls = 140, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 406 [2024-12-01 13:20:19,573 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 13:20:19,574 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 13:20:19,574 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 13:20:19,574 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 13:20:19,582 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:19" (1/1) ... [2024-12-01 13:20:19,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:19" (1/1) ... [2024-12-01 13:20:19,588 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:19" (1/1) ... [2024-12-01 13:20:19,608 INFO L175 MemorySlicer]: Split 111 memory accesses to 2 slices as follows [2, 109]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 31 writes are split as follows [0, 31]. [2024-12-01 13:20:19,608 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:19" (1/1) ... [2024-12-01 13:20:19,608 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:19" (1/1) ... [2024-12-01 13:20:19,628 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:19" (1/1) ... [2024-12-01 13:20:19,629 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:19" (1/1) ... [2024-12-01 13:20:19,633 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:19" (1/1) ... [2024-12-01 13:20:19,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:19" (1/1) ... [2024-12-01 13:20:19,638 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:19" (1/1) ... [2024-12-01 13:20:19,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 13:20:19,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 13:20:19,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 13:20:19,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 13:20:19,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:19" (1/1) ... [2024-12-01 13:20:19,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:20:19,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:20:19,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 13:20:19,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 13:20:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 13:20:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-01 13:20:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-01 13:20:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-01 13:20:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-01 13:20:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-01 13:20:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-01 13:20:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-01 13:20:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-01 13:20:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-12-01 13:20:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-12-01 13:20:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-12-01 13:20:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-12-01 13:20:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-12-01 13:20:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-12-01 13:20:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-01 13:20:19,703 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-01 13:20:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-12-01 13:20:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-12-01 13:20:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 13:20:19,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 13:20:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-01 13:20:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-01 13:20:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-01 13:20:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-01 13:20:19,825 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 13:20:19,827 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 13:20:20,328 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-12-01 13:20:20,328 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 13:20:20,339 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 13:20:20,339 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-01 13:20:20,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:20:20 BoogieIcfgContainer [2024-12-01 13:20:20,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 13:20:20,341 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 13:20:20,341 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 13:20:20,345 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 13:20:20,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:20:19" (1/3) ... [2024-12-01 13:20:20,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b33d45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:20:20, skipping insertion in model container [2024-12-01 13:20:20,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:19" (2/3) ... [2024-12-01 13:20:20,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b33d45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:20:20, skipping insertion in model container [2024-12-01 13:20:20,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:20:20" (3/3) ... [2024-12-01 13:20:20,347 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-57.i [2024-12-01 13:20:20,359 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 13:20:20,360 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-57.i that has 2 procedures, 97 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-01 13:20:20,404 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 13:20:20,415 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;@2c3c0636, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 13:20:20,415 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-01 13:20:20,419 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 76 states have (on average 1.394736842105263) internal successors, (106), 77 states have internal predecessors, (106), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-01 13:20:20,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-01 13:20:20,429 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:20,429 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:20,430 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:20,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:20,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1840313941, now seen corresponding path program 1 times [2024-12-01 13:20:20,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:20:20,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962402848] [2024-12-01 13:20:20,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:20,445 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 [2024-12-01 13:20:20,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:20:20,447 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:20:20,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:20,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-01 13:20:20,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:20,737 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-12-01 13:20:20,737 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:20:20,738 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:20:20,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962402848] [2024-12-01 13:20:20,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962402848] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:20,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:20,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 13:20:20,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723113450] [2024-12-01 13:20:20,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:20,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-01 13:20:20,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:20:20,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-01 13:20:20,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 13:20:20,762 INFO L87 Difference]: Start difference. First operand has 97 states, 76 states have (on average 1.394736842105263) internal successors, (106), 77 states have internal predecessors, (106), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-01 13:20:20,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:20,789 INFO L93 Difference]: Finished difference Result 187 states and 296 transitions. [2024-12-01 13:20:20,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-01 13:20:20,791 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 134 [2024-12-01 13:20:20,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:20,797 INFO L225 Difference]: With dead ends: 187 [2024-12-01 13:20:20,797 INFO L226 Difference]: Without dead ends: 93 [2024-12-01 13:20:20,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 13:20:20,803 INFO L435 NwaCegarLoop]: 135 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, 135 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:20,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:20:20,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-12-01 13:20:20,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-12-01 13:20:20,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 73 states have (on average 1.356164383561644) internal successors, (99), 73 states have internal predecessors, (99), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-01 13:20:20,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2024-12-01 13:20:20,842 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 134 [2024-12-01 13:20:20,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:20,843 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2024-12-01 13:20:20,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-01 13:20:20,843 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2024-12-01 13:20:20,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-01 13:20:20,847 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:20,848 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:20,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:21,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:20:21,049 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:21,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:21,049 INFO L85 PathProgramCache]: Analyzing trace with hash -957014791, now seen corresponding path program 1 times [2024-12-01 13:20:21,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:20:21,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526586821] [2024-12-01 13:20:21,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:21,050 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 [2024-12-01 13:20:21,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:20:21,052 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:20:21,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:21,249 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-01 13:20:21,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:21,312 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:21,312 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:20:21,312 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:20:21,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526586821] [2024-12-01 13:20:21,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526586821] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:21,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:21,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:20:21,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232019060] [2024-12-01 13:20:21,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:21,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:20:21,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:20:21,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:20:21,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:21,316 INFO L87 Difference]: Start difference. First operand 93 states and 135 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:21,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:21,381 INFO L93 Difference]: Finished difference Result 188 states and 274 transitions. [2024-12-01 13:20:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:20:21,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 134 [2024-12-01 13:20:21,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:21,383 INFO L225 Difference]: With dead ends: 188 [2024-12-01 13:20:21,383 INFO L226 Difference]: Without dead ends: 98 [2024-12-01 13:20:21,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:21,384 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 1 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:21,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 507 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:20:21,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-12-01 13:20:21,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2024-12-01 13:20:21,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 77 states have (on average 1.3376623376623376) internal successors, (103), 77 states have internal predecessors, (103), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-01 13:20:21,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 139 transitions. [2024-12-01 13:20:21,393 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 139 transitions. Word has length 134 [2024-12-01 13:20:21,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:21,394 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 139 transitions. [2024-12-01 13:20:21,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:21,394 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 139 transitions. [2024-12-01 13:20:21,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-01 13:20:21,395 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:21,396 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:21,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:21,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:20:21,596 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:21,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:21,597 INFO L85 PathProgramCache]: Analyzing trace with hash -955167749, now seen corresponding path program 1 times [2024-12-01 13:20:21,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:20:21,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942677838] [2024-12-01 13:20:21,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:21,598 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 [2024-12-01 13:20:21,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:20:21,599 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:20:21,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:21,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-01 13:20:21,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:21,983 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 72 treesize of output 71 [2024-12-01 13:20:22,202 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 156 treesize of output 128 [2024-12-01 13:20:23,008 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:23,008 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:20:23,008 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:20:23,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942677838] [2024-12-01 13:20:23,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942677838] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:23,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:23,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:20:23,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302301839] [2024-12-01 13:20:23,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:23,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 13:20:23,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:20:23,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 13:20:23,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:20:23,010 INFO L87 Difference]: Start difference. First operand 97 states and 139 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:25,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:25,082 INFO L93 Difference]: Finished difference Result 286 states and 412 transitions. [2024-12-01 13:20:25,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 13:20:25,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 134 [2024-12-01 13:20:25,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:25,084 INFO L225 Difference]: With dead ends: 286 [2024-12-01 13:20:25,084 INFO L226 Difference]: Without dead ends: 192 [2024-12-01 13:20:25,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:25,085 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 89 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:25,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 293 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-01 13:20:25,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-12-01 13:20:25,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 157. [2024-12-01 13:20:25,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 118 states have (on average 1.2966101694915255) internal successors, (153), 118 states have internal predecessors, (153), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-01 13:20:25,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 225 transitions. [2024-12-01 13:20:25,117 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 225 transitions. Word has length 134 [2024-12-01 13:20:25,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:25,117 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 225 transitions. [2024-12-01 13:20:25,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:25,118 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 225 transitions. [2024-12-01 13:20:25,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-01 13:20:25,120 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:25,120 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:25,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-01 13:20:25,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:20:25,321 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:25,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:25,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1705869233, now seen corresponding path program 1 times [2024-12-01 13:20:25,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:20:25,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948012352] [2024-12-01 13:20:25,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:25,322 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 [2024-12-01 13:20:25,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:20:25,324 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:20:25,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:25,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-01 13:20:25,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:25,574 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 [2024-12-01 13:20:25,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-01 13:20:25,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-01 13:20:25,710 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 [2024-12-01 13:20:25,867 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:25,867 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 [2024-12-01 13:20:26,087 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:26,087 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 [2024-12-01 13:20:26,276 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:26,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 51 [2024-12-01 13:20:26,562 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:26,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 54 [2024-12-01 13:20:26,773 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:26,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 64 [2024-12-01 13:20:27,376 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 107 treesize of output 83 [2024-12-01 13:20:27,388 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:27,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 83 treesize of output 141 [2024-12-01 13:20:27,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 63 [2024-12-01 13:20:28,177 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:28,178 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 174 treesize of output 127 [2024-12-01 13:20:28,396 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:28,396 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 174 treesize of output 127 [2024-12-01 13:20:28,655 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 483 proven. 48 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-12-01 13:20:28,655 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:20:28,894 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:28,894 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:20:28,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948012352] [2024-12-01 13:20:28,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1948012352] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:20:28,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:20:28,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 16 [2024-12-01 13:20:28,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598752053] [2024-12-01 13:20:28,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:28,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:20:28,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:20:28,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:20:28,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:20:28,896 INFO L87 Difference]: Start difference. First operand 157 states and 225 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:29,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:29,254 INFO L93 Difference]: Finished difference Result 321 states and 464 transitions. [2024-12-01 13:20:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:20:29,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-12-01 13:20:29,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:29,256 INFO L225 Difference]: With dead ends: 321 [2024-12-01 13:20:29,257 INFO L226 Difference]: Without dead ends: 225 [2024-12-01 13:20:29,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 264 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:20:29,258 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 120 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:29,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 257 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 13:20:29,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-12-01 13:20:29,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 177. [2024-12-01 13:20:29,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 138 states have (on average 1.326086956521739) internal successors, (183), 138 states have internal predecessors, (183), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-01 13:20:29,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 255 transitions. [2024-12-01 13:20:29,297 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 255 transitions. Word has length 141 [2024-12-01 13:20:29,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:29,297 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 255 transitions. [2024-12-01 13:20:29,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:29,297 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 255 transitions. [2024-12-01 13:20:29,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-01 13:20:29,300 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:29,300 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:29,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:29,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:20:29,501 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:29,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:29,501 INFO L85 PathProgramCache]: Analyzing trace with hash 900154321, now seen corresponding path program 1 times [2024-12-01 13:20:29,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:20:29,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899945627] [2024-12-01 13:20:29,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:29,502 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 [2024-12-01 13:20:29,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:20:29,504 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:20:29,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:29,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-01 13:20:29,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:29,743 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 73 treesize of output 72 [2024-12-01 13:20:29,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 125 [2024-12-01 13:20:30,353 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 45 treesize of output 32 [2024-12-01 13:20:30,356 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-12-01 13:20:30,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 8 [2024-12-01 13:20:30,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2024-12-01 13:20:30,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2024-12-01 13:20:30,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2024-12-01 13:20:30,512 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 66 treesize of output 54 [2024-12-01 13:20:30,627 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:30,627 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:20:30,627 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:20:30,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899945627] [2024-12-01 13:20:30,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899945627] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:30,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:30,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-01 13:20:30,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541513753] [2024-12-01 13:20:30,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:30,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 13:20:30,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:20:30,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 13:20:30,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-01 13:20:30,628 INFO L87 Difference]: Start difference. First operand 177 states and 255 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:32,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:32,394 INFO L93 Difference]: Finished difference Result 318 states and 456 transitions. [2024-12-01 13:20:32,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 13:20:32,394 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-12-01 13:20:32,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:32,396 INFO L225 Difference]: With dead ends: 318 [2024-12-01 13:20:32,396 INFO L226 Difference]: Without dead ends: 214 [2024-12-01 13:20:32,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-12-01 13:20:32,397 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 111 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:32,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 545 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-01 13:20:32,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-12-01 13:20:32,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 188. [2024-12-01 13:20:32,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 148 states have (on average 1.3243243243243243) internal successors, (196), 148 states have internal predecessors, (196), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-01 13:20:32,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 268 transitions. [2024-12-01 13:20:32,423 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 268 transitions. Word has length 141 [2024-12-01 13:20:32,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:32,423 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 268 transitions. [2024-12-01 13:20:32,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:32,423 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 268 transitions. [2024-12-01 13:20:32,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-01 13:20:32,425 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:32,425 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:32,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-12-01 13:20:32,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:20:32,626 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:32,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:32,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1861860280, now seen corresponding path program 1 times [2024-12-01 13:20:32,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:20:32,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562301970] [2024-12-01 13:20:32,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:32,627 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 [2024-12-01 13:20:32,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:20:32,628 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:20:32,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:32,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-01 13:20:32,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:32,863 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:32,863 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:20:32,863 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:20:32,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562301970] [2024-12-01 13:20:32,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562301970] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:32,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:32,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:20:32,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991681254] [2024-12-01 13:20:32,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:32,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:20:32,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:20:32,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:20:32,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:32,865 INFO L87 Difference]: Start difference. First operand 188 states and 268 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:33,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:33,239 INFO L93 Difference]: Finished difference Result 334 states and 477 transitions. [2024-12-01 13:20:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:20:33,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-12-01 13:20:33,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:33,242 INFO L225 Difference]: With dead ends: 334 [2024-12-01 13:20:33,242 INFO L226 Difference]: Without dead ends: 230 [2024-12-01 13:20:33,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-01 13:20:33,243 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 39 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:33,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 365 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 13:20:33,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-12-01 13:20:33,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 202. [2024-12-01 13:20:33,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 162 states have (on average 1.3333333333333333) internal successors, (216), 162 states have internal predecessors, (216), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-01 13:20:33,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 288 transitions. [2024-12-01 13:20:33,267 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 288 transitions. Word has length 144 [2024-12-01 13:20:33,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:33,268 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 288 transitions. [2024-12-01 13:20:33,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:33,268 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 288 transitions. [2024-12-01 13:20:33,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-01 13:20:33,270 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:33,270 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:33,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:33,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:20:33,471 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:33,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:33,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1732042438, now seen corresponding path program 1 times [2024-12-01 13:20:33,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:20:33,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777934714] [2024-12-01 13:20:33,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:33,472 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 [2024-12-01 13:20:33,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:20:33,473 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:20:33,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:33,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-01 13:20:33,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:33,714 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 [2024-12-01 13:20:33,863 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 41 treesize of output 19 [2024-12-01 13:20:34,178 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:34,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 47 [2024-12-01 13:20:34,492 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:34,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 51 [2024-12-01 13:20:34,899 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 86 treesize of output 66 [2024-12-01 13:20:34,909 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:34,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 118 [2024-12-01 13:20:34,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 50 [2024-12-01 13:20:35,947 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:35,947 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 165 treesize of output 127 [2024-12-01 13:20:36,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:36,201 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 165 treesize of output 127 [2024-12-01 13:20:36,569 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:36,569 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 180 treesize of output 145 [2024-12-01 13:20:37,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:37,916 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 250 treesize of output 134 [2024-12-01 13:20:38,123 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 390 proven. 33 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-12-01 13:20:38,124 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:20:38,372 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:38,372 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:20:38,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777934714] [2024-12-01 13:20:38,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777934714] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:20:38,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:20:38,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [20] total 22 [2024-12-01 13:20:38,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941043591] [2024-12-01 13:20:38,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:38,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:20:38,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:20:38,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:20:38,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2024-12-01 13:20:38,374 INFO L87 Difference]: Start difference. First operand 202 states and 288 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:38,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:38,992 INFO L93 Difference]: Finished difference Result 402 states and 573 transitions. [2024-12-01 13:20:38,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:20:38,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-12-01 13:20:38,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:38,994 INFO L225 Difference]: With dead ends: 402 [2024-12-01 13:20:38,994 INFO L226 Difference]: Without dead ends: 290 [2024-12-01 13:20:38,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 263 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=100, Invalid=500, Unknown=0, NotChecked=0, Total=600 [2024-12-01 13:20:38,996 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 69 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:38,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 625 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-01 13:20:38,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-12-01 13:20:39,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 287. [2024-12-01 13:20:39,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 236 states have (on average 1.3347457627118644) internal successors, (315), 237 states have internal predecessors, (315), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-01 13:20:39,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 407 transitions. [2024-12-01 13:20:39,016 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 407 transitions. Word has length 144 [2024-12-01 13:20:39,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:39,016 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 407 transitions. [2024-12-01 13:20:39,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:39,016 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 407 transitions. [2024-12-01 13:20:39,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-01 13:20:39,018 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:39,018 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:39,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:39,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:20:39,218 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:39,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:39,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1952317151, now seen corresponding path program 1 times [2024-12-01 13:20:39,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:20:39,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155927214] [2024-12-01 13:20:39,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:39,219 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 [2024-12-01 13:20:39,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:20:39,221 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:20:39,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:39,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-01 13:20:39,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:39,441 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:20:39,441 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:20:39,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155927214] [2024-12-01 13:20:39,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1155927214] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:39,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:39,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:20:39,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637114166] [2024-12-01 13:20:39,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:39,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:20:39,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:20:39,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:20:39,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:39,442 INFO L87 Difference]: Start difference. First operand 287 states and 407 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:39,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:39,836 INFO L93 Difference]: Finished difference Result 562 states and 797 transitions. [2024-12-01 13:20:39,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:20:39,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-12-01 13:20:39,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:39,840 INFO L225 Difference]: With dead ends: 562 [2024-12-01 13:20:39,840 INFO L226 Difference]: Without dead ends: 368 [2024-12-01 13:20:39,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:20:39,841 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 56 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:39,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 471 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 13:20:39,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-12-01 13:20:39,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 365. [2024-12-01 13:20:39,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 309 states have (on average 1.3236245954692556) internal successors, (409), 311 states have internal predecessors, (409), 50 states have call successors, (50), 5 states have call predecessors, (50), 5 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-01 13:20:39,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 509 transitions. [2024-12-01 13:20:39,858 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 509 transitions. Word has length 145 [2024-12-01 13:20:39,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:39,858 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 509 transitions. [2024-12-01 13:20:39,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:39,859 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 509 transitions. [2024-12-01 13:20:39,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-01 13:20:39,860 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:39,860 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:39,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-12-01 13:20:40,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:20:40,061 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:40,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:40,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1062786467, now seen corresponding path program 1 times [2024-12-01 13:20:40,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:20:40,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584210753] [2024-12-01 13:20:40,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:40,062 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 [2024-12-01 13:20:40,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:20:40,063 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:20:40,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:40,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-01 13:20:40,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:40,292 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:40,293 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:20:40,293 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:20:40,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584210753] [2024-12-01 13:20:40,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584210753] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:40,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:40,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:20:40,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852962029] [2024-12-01 13:20:40,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:40,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:20:40,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:20:40,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:20:40,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:40,294 INFO L87 Difference]: Start difference. First operand 365 states and 509 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:40,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:40,744 INFO L93 Difference]: Finished difference Result 692 states and 962 transitions. [2024-12-01 13:20:40,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:20:40,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-12-01 13:20:40,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:40,748 INFO L225 Difference]: With dead ends: 692 [2024-12-01 13:20:40,748 INFO L226 Difference]: Without dead ends: 451 [2024-12-01 13:20:40,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:20:40,749 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 51 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:40,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 444 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 13:20:40,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-12-01 13:20:40,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 448. [2024-12-01 13:20:40,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 387 states have (on average 1.3126614987080103) internal successors, (508), 390 states have internal predecessors, (508), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-01 13:20:40,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 612 transitions. [2024-12-01 13:20:40,772 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 612 transitions. Word has length 145 [2024-12-01 13:20:40,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:40,772 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 612 transitions. [2024-12-01 13:20:40,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:40,772 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 612 transitions. [2024-12-01 13:20:40,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-01 13:20:40,774 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:40,774 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:40,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-12-01 13:20:40,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:20:40,975 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:40,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:40,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1632422817, now seen corresponding path program 1 times [2024-12-01 13:20:40,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:20:40,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454337137] [2024-12-01 13:20:40,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:40,976 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 [2024-12-01 13:20:40,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:20:40,978 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:20:40,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:41,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-01 13:20:41,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:41,197 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:41,197 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:20:41,197 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:20:41,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454337137] [2024-12-01 13:20:41,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454337137] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:41,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:41,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:20:41,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603551594] [2024-12-01 13:20:41,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:41,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:20:41,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:20:41,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:20:41,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:41,199 INFO L87 Difference]: Start difference. First operand 448 states and 612 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:41,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:41,610 INFO L93 Difference]: Finished difference Result 875 states and 1196 transitions. [2024-12-01 13:20:41,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:20:41,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-12-01 13:20:41,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:41,614 INFO L225 Difference]: With dead ends: 875 [2024-12-01 13:20:41,614 INFO L226 Difference]: Without dead ends: 556 [2024-12-01 13:20:41,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:20:41,615 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 48 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:41,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 457 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 13:20:41,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-12-01 13:20:41,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 466. [2024-12-01 13:20:41,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 405 states have (on average 1.3135802469135802) internal successors, (532), 408 states have internal predecessors, (532), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-01 13:20:41,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 636 transitions. [2024-12-01 13:20:41,653 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 636 transitions. Word has length 145 [2024-12-01 13:20:41,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:41,654 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 636 transitions. [2024-12-01 13:20:41,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:41,654 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 636 transitions. [2024-12-01 13:20:41,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-01 13:20:41,655 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:41,655 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:41,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:41,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:20:41,856 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:41,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:41,856 INFO L85 PathProgramCache]: Analyzing trace with hash 857106145, now seen corresponding path program 1 times [2024-12-01 13:20:41,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:20:41,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812575205] [2024-12-01 13:20:41,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:41,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:20:41,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:20:41,859 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:20:41,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:42,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-01 13:20:42,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:42,042 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:42,043 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:20:42,043 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:20:42,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812575205] [2024-12-01 13:20:42,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812575205] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:42,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:42,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:20:42,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047258248] [2024-12-01 13:20:42,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:42,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:20:42,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:20:42,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:20:42,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:42,044 INFO L87 Difference]: Start difference. First operand 466 states and 636 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:42,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:42,080 INFO L93 Difference]: Finished difference Result 776 states and 1059 transitions. [2024-12-01 13:20:42,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:20:42,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-12-01 13:20:42,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:42,082 INFO L225 Difference]: With dead ends: 776 [2024-12-01 13:20:42,082 INFO L226 Difference]: Without dead ends: 426 [2024-12-01 13:20:42,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:42,084 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:42,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 262 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:20:42,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-12-01 13:20:42,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2024-12-01 13:20:42,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 365 states have (on average 1.2986301369863014) internal successors, (474), 368 states have internal predecessors, (474), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-01 13:20:42,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 578 transitions. [2024-12-01 13:20:42,105 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 578 transitions. Word has length 145 [2024-12-01 13:20:42,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:42,105 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 578 transitions. [2024-12-01 13:20:42,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:42,105 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 578 transitions. [2024-12-01 13:20:42,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-01 13:20:42,106 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:42,106 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:42,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:42,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:20:42,307 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:42,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:42,307 INFO L85 PathProgramCache]: Analyzing trace with hash 205210215, now seen corresponding path program 1 times [2024-12-01 13:20:42,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:20:42,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522779805] [2024-12-01 13:20:42,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:42,308 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 [2024-12-01 13:20:42,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:20:42,310 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:20:42,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:42,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-01 13:20:42,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:42,527 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:42,527 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:20:42,528 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:20:42,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522779805] [2024-12-01 13:20:42,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [522779805] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:42,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:42,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:20:42,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335589129] [2024-12-01 13:20:42,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:42,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:20:42,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:20:42,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:20:42,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:42,529 INFO L87 Difference]: Start difference. First operand 426 states and 578 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:42,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:42,936 INFO L93 Difference]: Finished difference Result 891 states and 1196 transitions. [2024-12-01 13:20:42,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:20:42,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-12-01 13:20:42,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:42,938 INFO L225 Difference]: With dead ends: 891 [2024-12-01 13:20:42,939 INFO L226 Difference]: Without dead ends: 594 [2024-12-01 13:20:42,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:20:42,939 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 47 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:42,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 356 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 13:20:42,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-12-01 13:20:42,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 549. [2024-12-01 13:20:42,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 479 states have (on average 1.2755741127348643) internal successors, (611), 484 states have internal predecessors, (611), 58 states have call successors, (58), 11 states have call predecessors, (58), 11 states have return successors, (58), 53 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-01 13:20:42,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 727 transitions. [2024-12-01 13:20:42,964 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 727 transitions. Word has length 147 [2024-12-01 13:20:42,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:42,964 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 727 transitions. [2024-12-01 13:20:42,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:42,964 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 727 transitions. [2024-12-01 13:20:42,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-01 13:20:42,965 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:42,965 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:42,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-12-01 13:20:43,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:20:43,166 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:43,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:43,166 INFO L85 PathProgramCache]: Analyzing trace with hash -2144036769, now seen corresponding path program 1 times [2024-12-01 13:20:43,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:20:43,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978069690] [2024-12-01 13:20:43,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:43,167 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 [2024-12-01 13:20:43,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:20:43,168 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:20:43,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:43,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-01 13:20:43,457 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:43,676 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 [2024-12-01 13:20:43,702 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 49 treesize of output 21 [2024-12-01 13:20:43,841 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 [2024-12-01 13:20:43,870 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:43,870 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:20:43,870 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:20:43,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978069690] [2024-12-01 13:20:43,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978069690] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:43,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:43,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 13:20:43,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197416410] [2024-12-01 13:20:43,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:43,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-01 13:20:43,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:20:43,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-01 13:20:43,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-01 13:20:43,872 INFO L87 Difference]: Start difference. First operand 549 states and 727 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:44,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:44,548 INFO L93 Difference]: Finished difference Result 569 states and 752 transitions. [2024-12-01 13:20:44,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-01 13:20:44,549 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-12-01 13:20:44,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:44,551 INFO L225 Difference]: With dead ends: 569 [2024-12-01 13:20:44,551 INFO L226 Difference]: Without dead ends: 567 [2024-12-01 13:20:44,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:20:44,552 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 106 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:44,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 578 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-01 13:20:44,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-12-01 13:20:44,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2024-12-01 13:20:44,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 497 states have (on average 1.2655935613682092) internal successors, (629), 502 states have internal predecessors, (629), 58 states have call successors, (58), 11 states have call predecessors, (58), 11 states have return successors, (58), 53 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-01 13:20:44,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 745 transitions. [2024-12-01 13:20:44,597 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 745 transitions. Word has length 147 [2024-12-01 13:20:44,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:44,597 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 745 transitions. [2024-12-01 13:20:44,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:44,597 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 745 transitions. [2024-12-01 13:20:44,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-01 13:20:44,598 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:44,599 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:44,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:44,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:20:44,799 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:44,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:44,800 INFO L85 PathProgramCache]: Analyzing trace with hash -2142189727, now seen corresponding path program 1 times [2024-12-01 13:20:44,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:20:44,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495872104] [2024-12-01 13:20:44,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:44,800 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 [2024-12-01 13:20:44,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:20:44,802 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:20:44,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:45,105 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-12-01 13:20:45,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:45,121 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 [2024-12-01 13:20:45,245 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 [2024-12-01 13:20:45,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 42 [2024-12-01 13:20:46,162 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 97 treesize of output 75 [2024-12-01 13:20:46,170 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:46,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 109 [2024-12-01 13:20:46,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 44 [2024-12-01 13:20:47,235 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:47,235 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 184 treesize of output 140 [2024-12-01 13:20:47,706 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:47,706 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 199 treesize of output 143 [2024-12-01 13:20:47,894 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:47,894 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 199 treesize of output 143 [2024-12-01 13:20:49,368 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:49,368 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 258 treesize of output 142 [2024-12-01 13:20:49,569 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 335 proven. 9 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-12-01 13:20:49,570 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:20:49,867 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:49,867 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:20:49,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495872104] [2024-12-01 13:20:49,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495872104] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:20:49,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:20:49,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [24] total 26 [2024-12-01 13:20:49,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121114394] [2024-12-01 13:20:49,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:49,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:20:49,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:20:49,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:20:49,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=520, Unknown=0, NotChecked=0, Total=650 [2024-12-01 13:20:49,869 INFO L87 Difference]: Start difference. First operand 567 states and 745 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:50,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:50,739 INFO L93 Difference]: Finished difference Result 1472 states and 1930 transitions. [2024-12-01 13:20:50,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:20:50,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-12-01 13:20:50,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:50,743 INFO L225 Difference]: With dead ends: 1472 [2024-12-01 13:20:50,743 INFO L226 Difference]: Without dead ends: 1053 [2024-12-01 13:20:50,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=142, Invalid=670, Unknown=0, NotChecked=0, Total=812 [2024-12-01 13:20:50,745 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 75 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:50,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 583 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-01 13:20:50,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2024-12-01 13:20:50,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 1050. [2024-12-01 13:20:50,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 938 states have (on average 1.2611940298507462) internal successors, (1183), 949 states have internal predecessors, (1183), 92 states have call successors, (92), 19 states have call predecessors, (92), 19 states have return successors, (92), 81 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-01 13:20:50,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1367 transitions. [2024-12-01 13:20:50,814 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1367 transitions. Word has length 147 [2024-12-01 13:20:50,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:50,814 INFO L471 AbstractCegarLoop]: Abstraction has 1050 states and 1367 transitions. [2024-12-01 13:20:50,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:50,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1367 transitions. [2024-12-01 13:20:50,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-01 13:20:50,816 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:50,816 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:50,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:51,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:20:51,016 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:51,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:51,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1530769053, now seen corresponding path program 1 times [2024-12-01 13:20:51,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:20:51,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744311356] [2024-12-01 13:20:51,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:51,017 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 [2024-12-01 13:20:51,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:20:51,019 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:20:51,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-12-01 13:20:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:51,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-01 13:20:51,182 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:51,210 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:51,210 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:20:51,210 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:20:51,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744311356] [2024-12-01 13:20:51,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1744311356] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:51,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:51,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 13:20:51,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935538286] [2024-12-01 13:20:51,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:51,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:20:51,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:20:51,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:20:51,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:20:51,212 INFO L87 Difference]: Start difference. First operand 1050 states and 1367 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:51,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:51,289 INFO L93 Difference]: Finished difference Result 1906 states and 2488 transitions. [2024-12-01 13:20:51,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:20:51,289 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-12-01 13:20:51,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:51,292 INFO L225 Difference]: With dead ends: 1906 [2024-12-01 13:20:51,292 INFO L226 Difference]: Without dead ends: 1082 [2024-12-01 13:20:51,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:20:51,294 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:51,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 644 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:20:51,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2024-12-01 13:20:51,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1070. [2024-12-01 13:20:51,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 958 states have (on average 1.255741127348643) internal successors, (1203), 969 states have internal predecessors, (1203), 92 states have call successors, (92), 19 states have call predecessors, (92), 19 states have return successors, (92), 81 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-01 13:20:51,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1387 transitions. [2024-12-01 13:20:51,341 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1387 transitions. Word has length 147 [2024-12-01 13:20:51,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:51,341 INFO L471 AbstractCegarLoop]: Abstraction has 1070 states and 1387 transitions. [2024-12-01 13:20:51,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:51,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1387 transitions. [2024-12-01 13:20:51,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-01 13:20:51,342 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:51,342 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:51,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-12-01 13:20:51,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:20:51,543 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:51,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:51,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1042133790, now seen corresponding path program 1 times [2024-12-01 13:20:51,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:20:51,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354262099] [2024-12-01 13:20:51,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:51,544 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 [2024-12-01 13:20:51,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:20:51,546 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:20:51,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:51,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-01 13:20:51,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:51,819 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 [2024-12-01 13:20:51,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-01 13:20:52,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-01 13:20:52,099 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 36 treesize of output 29 [2024-12-01 13:20:52,243 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:52,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 42 [2024-12-01 13:20:52,442 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:52,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-12-01 13:20:52,682 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:52,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2024-12-01 13:20:53,023 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:53,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 76 [2024-12-01 13:20:53,468 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 105 treesize of output 81 [2024-12-01 13:20:53,477 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:53,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 153 [2024-12-01 13:20:53,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 70 [2024-12-01 13:20:54,233 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:54,234 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 182 treesize of output 144 [2024-12-01 13:20:54,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 144 [2024-12-01 13:20:55,066 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:55,066 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 192 treesize of output 148 [2024-12-01 13:20:56,097 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 521 proven. 42 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-01 13:20:56,097 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:20:56,271 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:20:56,272 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:20:56,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354262099] [2024-12-01 13:20:56,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1354262099] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:20:56,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:20:56,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 18 [2024-12-01 13:20:56,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429647190] [2024-12-01 13:20:56,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:56,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:20:56,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:20:56,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:20:56,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-12-01 13:20:56,273 INFO L87 Difference]: Start difference. First operand 1070 states and 1387 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:56,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:56,668 INFO L93 Difference]: Finished difference Result 1896 states and 2453 transitions. [2024-12-01 13:20:56,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:20:56,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-12-01 13:20:56,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:56,672 INFO L225 Difference]: With dead ends: 1896 [2024-12-01 13:20:56,672 INFO L226 Difference]: Without dead ends: 1052 [2024-12-01 13:20:56,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 278 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-12-01 13:20:56,674 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 41 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:56,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 360 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 13:20:56,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2024-12-01 13:20:56,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 876. [2024-12-01 13:20:56,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 772 states have (on average 1.244818652849741) internal successors, (961), 779 states have internal predecessors, (961), 84 states have call successors, (84), 19 states have call predecessors, (84), 19 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2024-12-01 13:20:56,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1129 transitions. [2024-12-01 13:20:56,715 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1129 transitions. Word has length 149 [2024-12-01 13:20:56,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:56,716 INFO L471 AbstractCegarLoop]: Abstraction has 876 states and 1129 transitions. [2024-12-01 13:20:56,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:20:56,716 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1129 transitions. [2024-12-01 13:20:56,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-01 13:20:56,717 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:56,717 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:56,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-12-01 13:20:56,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:20:56,918 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:56,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:56,918 INFO L85 PathProgramCache]: Analyzing trace with hash -961998085, now seen corresponding path program 1 times [2024-12-01 13:20:56,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:20:56,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94181443] [2024-12-01 13:20:56,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:56,919 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 [2024-12-01 13:20:56,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:20:56,921 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:20:56,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:20:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:57,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-01 13:20:57,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:57,212 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 [2024-12-01 13:20:57,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-01 13:20:57,332 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 [2024-12-01 13:20:57,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44 [2024-12-01 13:20:58,616 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 110 treesize of output 86 [2024-12-01 13:20:58,630 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:58,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 116 [2024-12-01 13:20:58,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2024-12-01 13:20:59,876 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:59,876 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 210 treesize of output 127 [2024-12-01 13:21:00,246 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:00,246 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 166 treesize of output 107 [2024-12-01 13:21:00,394 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:00,394 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 166 treesize of output 107 [2024-12-01 13:21:01,437 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:01,438 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 177 treesize of output 85 [2024-12-01 13:21:02,104 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 398 proven. 9 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2024-12-01 13:21:02,104 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:21:03,181 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:21:03,181 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:21:03,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94181443] [2024-12-01 13:21:03,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [94181443] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:21:03,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:21:03,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [30] total 36 [2024-12-01 13:21:03,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518554885] [2024-12-01 13:21:03,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:03,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 13:21:03,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:21:03,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 13:21:03,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1070, Unknown=0, NotChecked=0, Total=1260 [2024-12-01 13:21:03,183 INFO L87 Difference]: Start difference. First operand 876 states and 1129 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:21:04,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:04,900 INFO L93 Difference]: Finished difference Result 1950 states and 2512 transitions. [2024-12-01 13:21:04,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 13:21:04,902 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-12-01 13:21:04,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:04,905 INFO L225 Difference]: With dead ends: 1950 [2024-12-01 13:21:04,905 INFO L226 Difference]: Without dead ends: 1280 [2024-12-01 13:21:04,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=215, Invalid=1267, Unknown=0, NotChecked=0, Total=1482 [2024-12-01 13:21:04,906 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 174 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:04,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 580 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-01 13:21:04,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2024-12-01 13:21:04,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1053. [2024-12-01 13:21:04,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 949 states have (on average 1.2613277133825078) internal successors, (1197), 956 states have internal predecessors, (1197), 84 states have call successors, (84), 19 states have call predecessors, (84), 19 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2024-12-01 13:21:04,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1365 transitions. [2024-12-01 13:21:04,947 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1365 transitions. Word has length 149 [2024-12-01 13:21:04,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:04,947 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1365 transitions. [2024-12-01 13:21:04,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:21:04,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1365 transitions. [2024-12-01 13:21:04,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-01 13:21:04,948 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:04,948 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:04,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:21:05,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:21:05,149 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:05,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:05,149 INFO L85 PathProgramCache]: Analyzing trace with hash -260933507, now seen corresponding path program 1 times [2024-12-01 13:21:05,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:21:05,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015724961] [2024-12-01 13:21:05,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:05,150 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 [2024-12-01 13:21:05,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:21:05,151 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:21:05,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:21:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:05,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-01 13:21:05,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:21:05,419 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 [2024-12-01 13:21:05,536 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 [2024-12-01 13:21:05,675 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:05,676 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 [2024-12-01 13:21:05,819 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 65 treesize of output 49 [2024-12-01 13:21:05,825 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:05,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 81 [2024-12-01 13:21:05,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2024-12-01 13:21:06,360 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:06,360 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 113 treesize of output 81 [2024-12-01 13:21:06,542 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:06,542 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 113 treesize of output 81 [2024-12-01 13:21:06,794 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:06,794 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 113 treesize of output 81 [2024-12-01 13:21:07,536 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:07,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 104 treesize of output 60 [2024-12-01 13:21:07,605 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 309 proven. 15 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-01 13:21:07,605 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:21:07,804 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:21:07,805 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:21:07,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015724961] [2024-12-01 13:21:07,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015724961] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:21:07,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:21:07,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-12-01 13:21:07,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123794536] [2024-12-01 13:21:07,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:07,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:21:07,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:21:07,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:21:07,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-12-01 13:21:07,806 INFO L87 Difference]: Start difference. First operand 1053 states and 1365 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:21:08,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:08,213 INFO L93 Difference]: Finished difference Result 2316 states and 2990 transitions. [2024-12-01 13:21:08,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:21:08,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-12-01 13:21:08,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:08,220 INFO L225 Difference]: With dead ends: 2316 [2024-12-01 13:21:08,220 INFO L226 Difference]: Without dead ends: 1531 [2024-12-01 13:21:08,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 280 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:21:08,222 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 78 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:08,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 309 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 13:21:08,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2024-12-01 13:21:08,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1368. [2024-12-01 13:21:08,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 1242 states have (on average 1.2584541062801933) internal successors, (1563), 1251 states have internal predecessors, (1563), 100 states have call successors, (100), 25 states have call predecessors, (100), 25 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2024-12-01 13:21:08,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1763 transitions. [2024-12-01 13:21:08,304 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1763 transitions. Word has length 149 [2024-12-01 13:21:08,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:08,304 INFO L471 AbstractCegarLoop]: Abstraction has 1368 states and 1763 transitions. [2024-12-01 13:21:08,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:21:08,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1763 transitions. [2024-12-01 13:21:08,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-01 13:21:08,306 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:08,306 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:08,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:21:08,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:21:08,506 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:08,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:08,507 INFO L85 PathProgramCache]: Analyzing trace with hash 422744069, now seen corresponding path program 1 times [2024-12-01 13:21:08,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:21:08,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778565658] [2024-12-01 13:21:08,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:08,507 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 [2024-12-01 13:21:08,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:21:08,508 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:21:08,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-12-01 13:21:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:08,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-12-01 13:21:08,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:21:08,813 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 [2024-12-01 13:21:08,883 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 [2024-12-01 13:21:09,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2024-12-01 13:21:09,522 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 58 treesize of output 57 [2024-12-01 13:21:10,715 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 120 treesize of output 94 [2024-12-01 13:21:10,722 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:10,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 134 [2024-12-01 13:21:10,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 50 [2024-12-01 13:21:12,763 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:12,763 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 211 treesize of output 149 [2024-12-01 13:21:13,189 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:13,189 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 211 treesize of output 149 [2024-12-01 13:21:13,698 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:13,699 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 211 treesize of output 149 [2024-12-01 13:21:15,518 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:15,519 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 222 treesize of output 118 [2024-12-01 13:21:19,791 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 407 proven. 9 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-12-01 13:21:19,792 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:21:21,669 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:21:21,670 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:21:21,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [778565658] [2024-12-01 13:21:21,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [778565658] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:21:21,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:21:21,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [31] total 37 [2024-12-01 13:21:21,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775425630] [2024-12-01 13:21:21,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:21,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 13:21:21,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:21:21,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 13:21:21,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1117, Unknown=0, NotChecked=0, Total=1332 [2024-12-01 13:21:21,671 INFO L87 Difference]: Start difference. First operand 1368 states and 1763 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:21:23,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:23,991 INFO L93 Difference]: Finished difference Result 2555 states and 3286 transitions. [2024-12-01 13:21:23,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 13:21:23,992 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-12-01 13:21:23,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:23,998 INFO L225 Difference]: With dead ends: 2555 [2024-12-01 13:21:23,998 INFO L226 Difference]: Without dead ends: 1531 [2024-12-01 13:21:24,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 258 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=240, Invalid=1320, Unknown=0, NotChecked=0, Total=1560 [2024-12-01 13:21:24,000 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 223 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:24,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 615 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-01 13:21:24,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2024-12-01 13:21:24,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1320. [2024-12-01 13:21:24,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1193 states have (on average 1.2556580050293378) internal successors, (1498), 1202 states have internal predecessors, (1498), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2024-12-01 13:21:24,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1698 transitions. [2024-12-01 13:21:24,101 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1698 transitions. Word has length 149 [2024-12-01 13:21:24,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:24,102 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 1698 transitions. [2024-12-01 13:21:24,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:21:24,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1698 transitions. [2024-12-01 13:21:24,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-01 13:21:24,103 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:24,104 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:24,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-12-01 13:21:24,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:21:24,304 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:24,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:24,305 INFO L85 PathProgramCache]: Analyzing trace with hash -260398211, now seen corresponding path program 1 times [2024-12-01 13:21:24,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:21:24,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581046149] [2024-12-01 13:21:24,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:24,305 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 [2024-12-01 13:21:24,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:21:24,307 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:21:24,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:21:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:24,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-01 13:21:24,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:21:24,717 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 [2024-12-01 13:21:24,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-12-01 13:21:24,890 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:24,890 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 [2024-12-01 13:21:25,080 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 76 treesize of output 58 [2024-12-01 13:21:25,087 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:25,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 100 [2024-12-01 13:21:25,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 35 [2024-12-01 13:21:25,720 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:25,720 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 102 treesize of output 79 [2024-12-01 13:21:26,053 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:26,053 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 102 treesize of output 79 [2024-12-01 13:21:26,404 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:26,404 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 102 treesize of output 79 [2024-12-01 13:21:27,152 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:27,152 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 93 treesize of output 49 [2024-12-01 13:21:27,193 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 313 proven. 15 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-12-01 13:21:27,193 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:21:27,394 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:21:27,394 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:21:27,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581046149] [2024-12-01 13:21:27,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [581046149] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:21:27,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:21:27,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-12-01 13:21:27,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114981268] [2024-12-01 13:21:27,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:27,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:21:27,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:21:27,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:21:27,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-12-01 13:21:27,395 INFO L87 Difference]: Start difference. First operand 1320 states and 1698 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:21:27,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:27,897 INFO L93 Difference]: Finished difference Result 2395 states and 3080 transitions. [2024-12-01 13:21:27,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:21:27,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-12-01 13:21:27,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:27,901 INFO L225 Difference]: With dead ends: 2395 [2024-12-01 13:21:27,901 INFO L226 Difference]: Without dead ends: 1413 [2024-12-01 13:21:27,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 280 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:21:27,902 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 76 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:27,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 491 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 13:21:27,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2024-12-01 13:21:27,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1174. [2024-12-01 13:21:27,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1174 states, 1084 states have (on average 1.2666051660516606) internal successors, (1373), 1089 states have internal predecessors, (1373), 70 states have call successors, (70), 19 states have call predecessors, (70), 19 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-01 13:21:27,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1513 transitions. [2024-12-01 13:21:27,984 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1513 transitions. Word has length 149 [2024-12-01 13:21:27,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:27,984 INFO L471 AbstractCegarLoop]: Abstraction has 1174 states and 1513 transitions. [2024-12-01 13:21:27,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:21:27,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1513 transitions. [2024-12-01 13:21:27,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-01 13:21:27,986 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:27,986 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:27,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-12-01 13:21:28,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:21:28,187 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:28,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:28,187 INFO L85 PathProgramCache]: Analyzing trace with hash 440666367, now seen corresponding path program 1 times [2024-12-01 13:21:28,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:21:28,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006836277] [2024-12-01 13:21:28,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:28,188 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 [2024-12-01 13:21:28,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:21:28,190 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:21:28,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:21:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:28,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-12-01 13:21:28,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:21:28,569 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 [2024-12-01 13:21:28,633 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 [2024-12-01 13:21:29,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 48 [2024-12-01 13:21:30,176 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 95 treesize of output 61 [2024-12-01 13:21:32,173 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 162 treesize of output 128 [2024-12-01 13:21:32,181 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:32,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 128 treesize of output 152 [2024-12-01 13:21:32,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 38 [2024-12-01 13:21:34,686 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:34,686 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 313 treesize of output 179 [2024-12-01 13:21:35,693 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:35,693 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 269 treesize of output 159 [2024-12-01 13:21:35,983 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:35,984 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 269 treesize of output 159 [2024-12-01 13:21:38,994 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:38,994 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 291 treesize of output 133 [2024-12-01 13:21:40,745 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 419 proven. 3 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-01 13:21:40,745 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:21:43,430 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:21:43,431 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:21:43,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006836277] [2024-12-01 13:21:43,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006836277] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:21:43,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:21:43,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [39] total 45 [2024-12-01 13:21:43,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358652644] [2024-12-01 13:21:43,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:43,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 13:21:43,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:21:43,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 13:21:43,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=1645, Unknown=0, NotChecked=0, Total=1980 [2024-12-01 13:21:43,433 INFO L87 Difference]: Start difference. First operand 1174 states and 1513 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:21:48,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:48,654 INFO L93 Difference]: Finished difference Result 2149 states and 2764 transitions. [2024-12-01 13:21:48,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 13:21:48,656 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-12-01 13:21:48,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:48,659 INFO L225 Difference]: With dead ends: 2149 [2024-12-01 13:21:48,659 INFO L226 Difference]: Without dead ends: 1313 [2024-12-01 13:21:48,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 252 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=362, Invalid=1894, Unknown=0, NotChecked=0, Total=2256 [2024-12-01 13:21:48,660 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 205 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:48,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 557 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-12-01 13:21:48,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2024-12-01 13:21:48,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1116. [2024-12-01 13:21:48,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1026 states have (on average 1.2660818713450293) internal successors, (1299), 1031 states have internal predecessors, (1299), 70 states have call successors, (70), 19 states have call predecessors, (70), 19 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-01 13:21:48,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1439 transitions. [2024-12-01 13:21:48,708 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1439 transitions. Word has length 149 [2024-12-01 13:21:48,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:48,708 INFO L471 AbstractCegarLoop]: Abstraction has 1116 states and 1439 transitions. [2024-12-01 13:21:48,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:21:48,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1439 transitions. [2024-12-01 13:21:48,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-01 13:21:48,709 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:48,709 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:48,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-12-01 13:21:48,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:21:48,910 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:48,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:48,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1804402313, now seen corresponding path program 1 times [2024-12-01 13:21:48,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:21:48,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956855981] [2024-12-01 13:21:48,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:48,910 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 [2024-12-01 13:21:48,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:21:48,912 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:21:48,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:21:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:49,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-12-01 13:21:49,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:21:49,313 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 [2024-12-01 13:21:49,463 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 41 treesize of output 19 [2024-12-01 13:21:49,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2024-12-01 13:21:50,859 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 73 treesize of output 51 [2024-12-01 13:21:52,563 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 120 treesize of output 94 [2024-12-01 13:21:52,571 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:52,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 134 [2024-12-01 13:21:52,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2024-12-01 13:21:55,496 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:55,497 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 252 treesize of output 166 [2024-12-01 13:21:56,248 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:56,248 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 252 treesize of output 166 [2024-12-01 13:21:57,209 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:21:57,209 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 252 treesize of output 166 [2024-12-01 13:22:00,429 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:00,429 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 274 treesize of output 140 [2024-12-01 13:22:05,730 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 422 proven. 9 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-12-01 13:22:05,730 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:22:08,823 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:22:08,824 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:22:08,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956855981] [2024-12-01 13:22:08,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956855981] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:22:08,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:22:08,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [35] total 41 [2024-12-01 13:22:08,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407001037] [2024-12-01 13:22:08,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:22:08,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 13:22:08,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:22:08,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 13:22:08,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=1357, Unknown=0, NotChecked=0, Total=1640 [2024-12-01 13:22:08,825 INFO L87 Difference]: Start difference. First operand 1116 states and 1439 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:22:13,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:22:13,081 INFO L93 Difference]: Finished difference Result 1979 states and 2551 transitions. [2024-12-01 13:22:13,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 13:22:13,082 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-12-01 13:22:13,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:22:13,086 INFO L225 Difference]: With dead ends: 1979 [2024-12-01 13:22:13,086 INFO L226 Difference]: Without dead ends: 1191 [2024-12-01 13:22:13,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 253 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=310, Invalid=1582, Unknown=0, NotChecked=0, Total=1892 [2024-12-01 13:22:13,088 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 165 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-01 13:22:13,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 660 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-01 13:22:13,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2024-12-01 13:22:13,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 894. [2024-12-01 13:22:13,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 842 states have (on average 1.2909738717339667) internal successors, (1087), 843 states have internal predecessors, (1087), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-01 13:22:13,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1167 transitions. [2024-12-01 13:22:13,122 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1167 transitions. Word has length 149 [2024-12-01 13:22:13,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:22:13,122 INFO L471 AbstractCegarLoop]: Abstraction has 894 states and 1167 transitions. [2024-12-01 13:22:13,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:22:13,122 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1167 transitions. [2024-12-01 13:22:13,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-01 13:22:13,123 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:22:13,123 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:13,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:22:13,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:22:13,324 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:22:13,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:13,324 INFO L85 PathProgramCache]: Analyzing trace with hash -914377826, now seen corresponding path program 1 times [2024-12-01 13:22:13,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:22:13,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665655478] [2024-12-01 13:22:13,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:22:13,325 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 [2024-12-01 13:22:13,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:22:13,326 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:22:13,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:22:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:22:13,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-01 13:22:13,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:22:13,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-01 13:22:13,623 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 [2024-12-01 13:22:13,715 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:13,716 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 41 treesize of output 28 [2024-12-01 13:22:13,791 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:13,791 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 41 treesize of output 28 [2024-12-01 13:22:13,870 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:13,870 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 [2024-12-01 13:22:14,030 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:14,031 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 [2024-12-01 13:22:14,160 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:14,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 51 [2024-12-01 13:22:14,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:14,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 64 [2024-12-01 13:22:14,636 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:14,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 67 [2024-12-01 13:22:15,083 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 95 treesize of output 73 [2024-12-01 13:22:15,091 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:15,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 73 treesize of output 135 [2024-12-01 13:22:15,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 44 [2024-12-01 13:22:15,699 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:15,700 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 150 treesize of output 115 [2024-12-01 13:22:16,043 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:16,043 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 150 treesize of output 115 [2024-12-01 13:22:16,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:16,353 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 150 treesize of output 115 [2024-12-01 13:22:16,722 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 451 proven. 48 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-12-01 13:22:16,722 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:22:16,918 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:22:16,918 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:22:16,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665655478] [2024-12-01 13:22:16,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665655478] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:22:16,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:22:16,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 16 [2024-12-01 13:22:16,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038185137] [2024-12-01 13:22:16,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:22:16,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:22:16,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:22:16,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:22:16,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:22:16,919 INFO L87 Difference]: Start difference. First operand 894 states and 1167 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:22:17,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:22:17,352 INFO L93 Difference]: Finished difference Result 2060 states and 2702 transitions. [2024-12-01 13:22:17,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:22:17,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-12-01 13:22:17,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:22:17,355 INFO L225 Difference]: With dead ends: 2060 [2024-12-01 13:22:17,355 INFO L226 Difference]: Without dead ends: 1336 [2024-12-01 13:22:17,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 279 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:22:17,356 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 59 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:22:17,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 412 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 13:22:17,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2024-12-01 13:22:17,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 988. [2024-12-01 13:22:17,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 936 states have (on average 1.2841880341880343) internal successors, (1202), 937 states have internal predecessors, (1202), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-01 13:22:17,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1282 transitions. [2024-12-01 13:22:17,387 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1282 transitions. Word has length 149 [2024-12-01 13:22:17,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:22:17,388 INFO L471 AbstractCegarLoop]: Abstraction has 988 states and 1282 transitions. [2024-12-01 13:22:17,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:22:17,388 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1282 transitions. [2024-12-01 13:22:17,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-01 13:22:17,389 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:22:17,389 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:17,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:22:17,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:22:17,589 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:22:17,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:17,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1575151136, now seen corresponding path program 1 times [2024-12-01 13:22:17,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:22:17,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973921660] [2024-12-01 13:22:17,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:22:17,590 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 [2024-12-01 13:22:17,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:22:17,592 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:22:17,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:22:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:22:17,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-01 13:22:17,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:22:17,832 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:22:17,832 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:22:17,832 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:22:17,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973921660] [2024-12-01 13:22:17,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973921660] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:22:17,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:22:17,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:22:17,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406706949] [2024-12-01 13:22:17,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:22:17,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:22:17,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:22:17,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:22:17,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:22:17,833 INFO L87 Difference]: Start difference. First operand 988 states and 1282 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:22:18,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:22:18,196 INFO L93 Difference]: Finished difference Result 1834 states and 2385 transitions. [2024-12-01 13:22:18,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:22:18,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-12-01 13:22:18,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:22:18,199 INFO L225 Difference]: With dead ends: 1834 [2024-12-01 13:22:18,199 INFO L226 Difference]: Without dead ends: 1180 [2024-12-01 13:22:18,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:22:18,200 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 31 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:22:18,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 439 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 13:22:18,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2024-12-01 13:22:18,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 996. [2024-12-01 13:22:18,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 944 states have (on average 1.2817796610169492) internal successors, (1210), 945 states have internal predecessors, (1210), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-01 13:22:18,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1290 transitions. [2024-12-01 13:22:18,231 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1290 transitions. Word has length 149 [2024-12-01 13:22:18,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:22:18,232 INFO L471 AbstractCegarLoop]: Abstraction has 996 states and 1290 transitions. [2024-12-01 13:22:18,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:22:18,232 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1290 transitions. [2024-12-01 13:22:18,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-01 13:22:18,233 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:22:18,233 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:18,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:22:18,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:22:18,433 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:22:18,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:18,434 INFO L85 PathProgramCache]: Analyzing trace with hash -873860583, now seen corresponding path program 1 times [2024-12-01 13:22:18,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:22:18,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358798179] [2024-12-01 13:22:18,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:22:18,434 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 [2024-12-01 13:22:18,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:22:18,436 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:22:18,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:22:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:22:18,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-01 13:22:18,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:22:18,656 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:22:18,656 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:22:18,656 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:22:18,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [358798179] [2024-12-01 13:22:18,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [358798179] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:22:18,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:22:18,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:22:18,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215743497] [2024-12-01 13:22:18,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:22:18,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:22:18,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:22:18,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:22:18,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:22:18,657 INFO L87 Difference]: Start difference. First operand 996 states and 1290 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:22:19,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:22:19,059 INFO L93 Difference]: Finished difference Result 1739 states and 2265 transitions. [2024-12-01 13:22:19,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:22:19,060 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 150 [2024-12-01 13:22:19,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:22:19,062 INFO L225 Difference]: With dead ends: 1739 [2024-12-01 13:22:19,062 INFO L226 Difference]: Without dead ends: 1077 [2024-12-01 13:22:19,063 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:22:19,063 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 47 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:22:19,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 464 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 13:22:19,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2024-12-01 13:22:19,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 996. [2024-12-01 13:22:19,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 944 states have (on average 1.277542372881356) internal successors, (1206), 945 states have internal predecessors, (1206), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-01 13:22:19,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1286 transitions. [2024-12-01 13:22:19,095 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1286 transitions. Word has length 150 [2024-12-01 13:22:19,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:22:19,095 INFO L471 AbstractCegarLoop]: Abstraction has 996 states and 1286 transitions. [2024-12-01 13:22:19,096 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:22:19,096 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1286 transitions. [2024-12-01 13:22:19,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-01 13:22:19,096 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:22:19,097 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:19,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:22:19,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:22:19,297 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:22:19,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:19,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1884977833, now seen corresponding path program 1 times [2024-12-01 13:22:19,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:22:19,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648112655] [2024-12-01 13:22:19,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:22:19,298 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 [2024-12-01 13:22:19,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:22:19,299 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:22:19,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:22:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:22:19,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-01 13:22:19,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:22:19,593 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-01 13:22:19,593 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:22:19,593 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:22:19,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648112655] [2024-12-01 13:22:19,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648112655] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:22:19,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:22:19,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:22:19,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272022498] [2024-12-01 13:22:19,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:22:19,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:22:19,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:22:19,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:22:19,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:22:19,595 INFO L87 Difference]: Start difference. First operand 996 states and 1286 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:22:20,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:22:20,206 INFO L93 Difference]: Finished difference Result 1772 states and 2301 transitions. [2024-12-01 13:22:20,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:22:20,207 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 150 [2024-12-01 13:22:20,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:22:20,211 INFO L225 Difference]: With dead ends: 1772 [2024-12-01 13:22:20,211 INFO L226 Difference]: Without dead ends: 1110 [2024-12-01 13:22:20,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:22:20,212 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 85 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-01 13:22:20,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 359 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-01 13:22:20,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2024-12-01 13:22:20,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1078. [2024-12-01 13:22:20,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1013 states have (on average 1.261599210266535) internal successors, (1278), 1015 states have internal predecessors, (1278), 50 states have call successors, (50), 14 states have call predecessors, (50), 14 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-01 13:22:20,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1378 transitions. [2024-12-01 13:22:20,278 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1378 transitions. Word has length 150 [2024-12-01 13:22:20,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:22:20,278 INFO L471 AbstractCegarLoop]: Abstraction has 1078 states and 1378 transitions. [2024-12-01 13:22:20,278 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:22:20,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1378 transitions. [2024-12-01 13:22:20,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-01 13:22:20,280 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:22:20,280 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:20,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:22:20,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:22:20,480 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:22:20,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:20,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1371848033, now seen corresponding path program 1 times [2024-12-01 13:22:20,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:22:20,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961658999] [2024-12-01 13:22:20,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:22:20,481 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 [2024-12-01 13:22:20,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:22:20,482 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:22:20,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:22:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:22:20,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-01 13:22:20,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:22:20,793 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 [2024-12-01 13:22:20,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-01 13:22:20,874 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 [2024-12-01 13:22:20,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-01 13:22:21,017 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:21,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-12-01 13:22:21,172 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:21,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2024-12-01 13:22:21,345 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 75 treesize of output 57 [2024-12-01 13:22:21,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:21,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 99 [2024-12-01 13:22:21,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 34 [2024-12-01 13:22:22,075 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:22,075 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 130 treesize of output 98 [2024-12-01 13:22:22,426 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:22,427 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 130 treesize of output 98 [2024-12-01 13:22:22,817 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:22,817 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 130 treesize of output 98 [2024-12-01 13:22:23,792 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:23,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 131 treesize of output 63 [2024-12-01 13:22:23,892 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 464 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-12-01 13:22:23,892 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:22:23,892 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:22:23,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961658999] [2024-12-01 13:22:23,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961658999] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:22:23,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:22:23,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:22:23,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371465936] [2024-12-01 13:22:23,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:22:23,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-01 13:22:23,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:22:23,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-01 13:22:23,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-12-01 13:22:23,893 INFO L87 Difference]: Start difference. First operand 1078 states and 1378 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-01 13:22:29,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:22:29,527 INFO L93 Difference]: Finished difference Result 2348 states and 3002 transitions. [2024-12-01 13:22:29,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:22:29,528 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 151 [2024-12-01 13:22:29,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:22:29,531 INFO L225 Difference]: With dead ends: 2348 [2024-12-01 13:22:29,532 INFO L226 Difference]: Without dead ends: 1604 [2024-12-01 13:22:29,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 140 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:22:29,533 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 182 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:22:29,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 280 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-12-01 13:22:29,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2024-12-01 13:22:29,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1600. [2024-12-01 13:22:29,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1511 states have (on average 1.2534745201853077) internal successors, (1894), 1516 states have internal predecessors, (1894), 66 states have call successors, (66), 22 states have call predecessors, (66), 22 states have return successors, (66), 61 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-01 13:22:29,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 2026 transitions. [2024-12-01 13:22:29,620 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 2026 transitions. Word has length 151 [2024-12-01 13:22:29,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:22:29,620 INFO L471 AbstractCegarLoop]: Abstraction has 1600 states and 2026 transitions. [2024-12-01 13:22:29,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-01 13:22:29,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 2026 transitions. [2024-12-01 13:22:29,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-01 13:22:29,622 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:22:29,622 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:29,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:22:29,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:22:29,822 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:22:29,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:29,823 INFO L85 PathProgramCache]: Analyzing trace with hash -691789663, now seen corresponding path program 1 times [2024-12-01 13:22:29,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:22:29,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10116151] [2024-12-01 13:22:29,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:22:29,823 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 [2024-12-01 13:22:29,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:22:29,824 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:22:29,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:22:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:22:30,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-01 13:22:30,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:22:30,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-01 13:22:30,123 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 [2024-12-01 13:22:30,172 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 [2024-12-01 13:22:30,222 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 [2024-12-01 13:22:30,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-01 13:22:30,402 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 65 treesize of output 49 [2024-12-01 13:22:30,414 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:30,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 81 [2024-12-01 13:22:30,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 27 [2024-12-01 13:22:30,811 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:30,811 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 94 treesize of output 86 [2024-12-01 13:22:30,961 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:30,961 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 109 treesize of output 89 [2024-12-01 13:22:31,055 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:31,056 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 109 treesize of output 89 [2024-12-01 13:22:32,048 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:32,049 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 111 treesize of output 55 [2024-12-01 13:22:32,169 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-12-01 13:22:32,169 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:22:32,169 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:22:32,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [10116151] [2024-12-01 13:22:32,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [10116151] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:22:32,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:22:32,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-01 13:22:32,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399611951] [2024-12-01 13:22:32,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:22:32,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-01 13:22:32,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:22:32,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-01 13:22:32,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-12-01 13:22:32,170 INFO L87 Difference]: Start difference. First operand 1600 states and 2026 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-01 13:22:39,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:22:39,190 INFO L93 Difference]: Finished difference Result 2754 states and 3510 transitions. [2024-12-01 13:22:39,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 13:22:39,191 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2024-12-01 13:22:39,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:22:39,195 INFO L225 Difference]: With dead ends: 2754 [2024-12-01 13:22:39,195 INFO L226 Difference]: Without dead ends: 1620 [2024-12-01 13:22:39,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:22:39,196 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 242 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-12-01 13:22:39,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 700 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-12-01 13:22:39,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2024-12-01 13:22:39,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1616. [2024-12-01 13:22:39,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1521 states have (on average 1.249835634451019) internal successors, (1901), 1526 states have internal predecessors, (1901), 70 states have call successors, (70), 24 states have call predecessors, (70), 24 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-01 13:22:39,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2041 transitions. [2024-12-01 13:22:39,295 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2041 transitions. Word has length 151 [2024-12-01 13:22:39,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:22:39,295 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 2041 transitions. [2024-12-01 13:22:39,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-01 13:22:39,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2041 transitions. [2024-12-01 13:22:39,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-01 13:22:39,296 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:22:39,296 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:39,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-12-01 13:22:39,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:22:39,497 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:22:39,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:39,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1394480287, now seen corresponding path program 1 times [2024-12-01 13:22:39,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:22:39,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937508107] [2024-12-01 13:22:39,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:22:39,498 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 [2024-12-01 13:22:39,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:22:39,499 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:22:39,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:22:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:22:39,780 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-01 13:22:39,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:22:39,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-01 13:22:39,792 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 [2024-12-01 13:22:39,795 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 [2024-12-01 13:22:39,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-01 13:22:39,969 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:39,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-12-01 13:22:40,135 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:40,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-12-01 13:22:40,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 65 [2024-12-01 13:22:40,403 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:40,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 117 [2024-12-01 13:22:40,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2024-12-01 13:22:41,151 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:41,152 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 134 treesize of output 120 [2024-12-01 13:22:41,390 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:41,390 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 149 treesize of output 123 [2024-12-01 13:22:41,532 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:41,532 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 149 treesize of output 123 [2024-12-01 13:22:42,773 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:42,773 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 151 treesize of output 71 [2024-12-01 13:22:42,932 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-12-01 13:22:42,932 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:22:42,932 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:22:42,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937508107] [2024-12-01 13:22:42,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937508107] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:22:42,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:22:42,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-01 13:22:42,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709017203] [2024-12-01 13:22:42,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:22:42,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-01 13:22:42,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:22:42,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-01 13:22:42,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-12-01 13:22:42,933 INFO L87 Difference]: Start difference. First operand 1616 states and 2041 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-01 13:22:50,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:22:50,063 INFO L93 Difference]: Finished difference Result 2878 states and 3645 transitions. [2024-12-01 13:22:50,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 13:22:50,065 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 151 [2024-12-01 13:22:50,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:22:50,068 INFO L225 Difference]: With dead ends: 2878 [2024-12-01 13:22:50,068 INFO L226 Difference]: Without dead ends: 1728 [2024-12-01 13:22:50,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2024-12-01 13:22:50,069 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 314 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-12-01 13:22:50,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 635 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-12-01 13:22:50,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2024-12-01 13:22:50,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1724. [2024-12-01 13:22:50,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1724 states, 1606 states have (on average 1.238480697384807) internal successors, (1989), 1614 states have internal predecessors, (1989), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:22:50,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2161 transitions. [2024-12-01 13:22:50,207 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2161 transitions. Word has length 151 [2024-12-01 13:22:50,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:22:50,207 INFO L471 AbstractCegarLoop]: Abstraction has 1724 states and 2161 transitions. [2024-12-01 13:22:50,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-01 13:22:50,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2161 transitions. [2024-12-01 13:22:50,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-01 13:22:50,209 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:22:50,209 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:50,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:22:50,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:22:50,409 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:22:50,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:50,410 INFO L85 PathProgramCache]: Analyzing trace with hash -714421917, now seen corresponding path program 1 times [2024-12-01 13:22:50,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:22:50,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859882997] [2024-12-01 13:22:50,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:22:50,410 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:22:50,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:22:50,412 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:22:50,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-01 13:22:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:22:50,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-01 13:22:50,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:22:50,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-01 13:22:50,730 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 [2024-12-01 13:22:50,732 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 [2024-12-01 13:22:50,735 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 [2024-12-01 13:22:50,737 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 [2024-12-01 13:22:50,740 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 [2024-12-01 13:22:50,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 41 [2024-12-01 13:22:50,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 63 [2024-12-01 13:22:50,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2024-12-01 13:22:51,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:51,245 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 72 [2024-12-01 13:22:51,447 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:51,447 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 72 [2024-12-01 13:22:51,671 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:51,671 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 72 [2024-12-01 13:22:52,415 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:52,415 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 90 treesize of output 46 [2024-12-01 13:22:53,091 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-12-01 13:22:53,091 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:22:53,091 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:22:53,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859882997] [2024-12-01 13:22:53,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1859882997] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:22:53,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:22:53,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-01 13:22:53,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497529292] [2024-12-01 13:22:53,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:22:53,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-01 13:22:53,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:22:53,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-01 13:22:53,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-01 13:22:53,092 INFO L87 Difference]: Start difference. First operand 1724 states and 2161 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-01 13:23:12,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:23:12,331 INFO L93 Difference]: Finished difference Result 2974 states and 3747 transitions. [2024-12-01 13:23:12,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:23:12,332 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 151 [2024-12-01 13:23:12,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:23:12,335 INFO L225 Difference]: With dead ends: 2974 [2024-12-01 13:23:12,335 INFO L226 Difference]: Without dead ends: 1716 [2024-12-01 13:23:12,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 142 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-01 13:23:12,337 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 233 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:23:12,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 327 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 19.0s Time] [2024-12-01 13:23:12,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2024-12-01 13:23:12,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1712. [2024-12-01 13:23:12,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1712 states, 1594 states have (on average 1.2365119196988708) internal successors, (1971), 1602 states have internal predecessors, (1971), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:23:12,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1712 states to 1712 states and 2143 transitions. [2024-12-01 13:23:12,481 INFO L78 Accepts]: Start accepts. Automaton has 1712 states and 2143 transitions. Word has length 151 [2024-12-01 13:23:12,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:23:12,482 INFO L471 AbstractCegarLoop]: Abstraction has 1712 states and 2143 transitions. [2024-12-01 13:23:12,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-01 13:23:12,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1712 states and 2143 transitions. [2024-12-01 13:23:12,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-01 13:23:12,483 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:23:12,483 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:23:12,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-12-01 13:23:12,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:23:12,684 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:23:12,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:23:12,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1923608896, now seen corresponding path program 1 times [2024-12-01 13:23:12,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:23:12,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453349704] [2024-12-01 13:23:12,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:23:12,685 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 [2024-12-01 13:23:12,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:23:12,686 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:23:12,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-12-01 13:23:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:23:12,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-01 13:23:12,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:23:12,983 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 [2024-12-01 13:23:12,986 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 [2024-12-01 13:23:13,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-01 13:23:13,154 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:13,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-12-01 13:23:13,309 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:13,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-12-01 13:23:13,496 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:13,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 53 [2024-12-01 13:23:13,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 65 [2024-12-01 13:23:13,718 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:13,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 117 [2024-12-01 13:23:13,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 41 [2024-12-01 13:23:14,228 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:14,229 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 130 treesize of output 98 [2024-12-01 13:23:14,550 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:14,550 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 130 treesize of output 98 [2024-12-01 13:23:15,258 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:15,259 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 134 treesize of output 120 [2024-12-01 13:23:16,495 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:16,495 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 151 treesize of output 71 [2024-12-01 13:23:16,700 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 464 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-12-01 13:23:16,700 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:23:16,700 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:23:16,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453349704] [2024-12-01 13:23:16,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453349704] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:23:16,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:23:16,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-01 13:23:16,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305257138] [2024-12-01 13:23:16,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:23:16,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-01 13:23:16,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:23:16,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-01 13:23:16,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-12-01 13:23:16,702 INFO L87 Difference]: Start difference. First operand 1712 states and 2143 transitions. Second operand has 15 states, 15 states have (on average 5.133333333333334) internal successors, (77), 15 states have internal predecessors, (77), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-01 13:23:24,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:23:24,331 INFO L93 Difference]: Finished difference Result 3624 states and 4514 transitions. [2024-12-01 13:23:24,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-01 13:23:24,332 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.133333333333334) internal successors, (77), 15 states have internal predecessors, (77), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 152 [2024-12-01 13:23:24,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:23:24,337 INFO L225 Difference]: With dead ends: 3624 [2024-12-01 13:23:24,337 INFO L226 Difference]: Without dead ends: 2378 [2024-12-01 13:23:24,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 136 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2024-12-01 13:23:24,339 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 252 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-12-01 13:23:24,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 674 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-12-01 13:23:24,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2378 states. [2024-12-01 13:23:24,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2378 to 2046. [2024-12-01 13:23:24,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2046 states, 1928 states have (on average 1.2380705394190872) internal successors, (2387), 1936 states have internal predecessors, (2387), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:23:24,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 2559 transitions. [2024-12-01 13:23:24,506 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 2559 transitions. Word has length 152 [2024-12-01 13:23:24,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:23:24,507 INFO L471 AbstractCegarLoop]: Abstraction has 2046 states and 2559 transitions. [2024-12-01 13:23:24,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.133333333333334) internal successors, (77), 15 states have internal predecessors, (77), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-01 13:23:24,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 2559 transitions. [2024-12-01 13:23:24,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-01 13:23:24,508 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:23:24,508 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:23:24,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-12-01 13:23:24,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:23:24,708 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:23:24,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:23:24,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1665443458, now seen corresponding path program 1 times [2024-12-01 13:23:24,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:23:24,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205727645] [2024-12-01 13:23:24,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:23:24,709 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 [2024-12-01 13:23:24,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:23:24,711 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:23:24,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-12-01 13:23:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:23:24,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-01 13:23:24,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:23:24,999 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 [2024-12-01 13:23:25,002 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 [2024-12-01 13:23:25,005 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 [2024-12-01 13:23:25,008 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 [2024-12-01 13:23:25,011 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 [2024-12-01 13:23:25,070 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 [2024-12-01 13:23:25,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 41 [2024-12-01 13:23:25,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 63 [2024-12-01 13:23:25,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2024-12-01 13:23:25,563 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:25,564 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 70 treesize of output 47 [2024-12-01 13:23:25,766 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:25,766 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 70 treesize of output 47 [2024-12-01 13:23:26,204 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:26,204 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 72 [2024-12-01 13:23:26,878 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:26,878 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 90 treesize of output 46 [2024-12-01 13:23:27,562 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-12-01 13:23:27,562 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:23:27,562 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:23:27,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205727645] [2024-12-01 13:23:27,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205727645] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:23:27,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:23:27,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-01 13:23:27,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716065011] [2024-12-01 13:23:27,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:23:27,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-01 13:23:27,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:23:27,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-01 13:23:27,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-01 13:23:27,563 INFO L87 Difference]: Start difference. First operand 2046 states and 2559 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-01 13:23:44,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:23:44,854 INFO L93 Difference]: Finished difference Result 3724 states and 4658 transitions. [2024-12-01 13:23:44,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:23:44,855 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 152 [2024-12-01 13:23:44,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:23:44,861 INFO L225 Difference]: With dead ends: 3724 [2024-12-01 13:23:44,861 INFO L226 Difference]: Without dead ends: 2228 [2024-12-01 13:23:44,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 143 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-01 13:23:44,863 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 164 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:23:44,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 312 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time] [2024-12-01 13:23:44,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2024-12-01 13:23:45,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2032. [2024-12-01 13:23:45,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2032 states, 1914 states have (on average 1.2324973876698015) internal successors, (2359), 1922 states have internal predecessors, (2359), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:23:45,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2032 states to 2032 states and 2531 transitions. [2024-12-01 13:23:45,044 INFO L78 Accepts]: Start accepts. Automaton has 2032 states and 2531 transitions. Word has length 152 [2024-12-01 13:23:45,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:23:45,044 INFO L471 AbstractCegarLoop]: Abstraction has 2032 states and 2531 transitions. [2024-12-01 13:23:45,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-01 13:23:45,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2032 states and 2531 transitions. [2024-12-01 13:23:45,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-01 13:23:45,045 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:23:45,045 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:23:45,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-12-01 13:23:45,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:23:45,246 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:23:45,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:23:45,246 INFO L85 PathProgramCache]: Analyzing trace with hash -380862, now seen corresponding path program 1 times [2024-12-01 13:23:45,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:23:45,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656464130] [2024-12-01 13:23:45,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:23:45,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:23:45,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:23:45,248 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:23:45,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-12-01 13:23:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:23:45,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-01 13:23:45,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:23:45,531 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 [2024-12-01 13:23:45,585 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 [2024-12-01 13:23:45,632 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 [2024-12-01 13:23:45,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-01 13:23:45,780 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:45,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-12-01 13:23:45,937 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:45,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2024-12-01 13:23:46,112 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 75 treesize of output 57 [2024-12-01 13:23:46,119 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:46,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 99 [2024-12-01 13:23:46,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 30 [2024-12-01 13:23:46,536 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:46,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 81 [2024-12-01 13:23:46,814 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:46,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 81 [2024-12-01 13:23:47,492 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:47,493 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 130 treesize of output 98 [2024-12-01 13:23:48,485 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:48,486 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 131 treesize of output 63 [2024-12-01 13:23:48,600 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 464 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-12-01 13:23:48,600 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:23:48,600 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:23:48,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656464130] [2024-12-01 13:23:48,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1656464130] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:23:48,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:23:48,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:23:48,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869020669] [2024-12-01 13:23:48,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:23:48,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-01 13:23:48,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:23:48,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-01 13:23:48,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-12-01 13:23:48,601 INFO L87 Difference]: Start difference. First operand 2032 states and 2531 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-01 13:23:53,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:23:53,176 INFO L93 Difference]: Finished difference Result 3952 states and 4924 transitions. [2024-12-01 13:23:53,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:23:53,178 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 152 [2024-12-01 13:23:53,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:23:53,182 INFO L225 Difference]: With dead ends: 3952 [2024-12-01 13:23:53,182 INFO L226 Difference]: Without dead ends: 2470 [2024-12-01 13:23:53,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 141 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:23:53,184 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 235 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:23:53,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 271 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-12-01 13:23:53,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2470 states. [2024-12-01 13:23:53,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2470 to 2172. [2024-12-01 13:23:53,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2172 states, 2054 states have (on average 1.2351509250243426) internal successors, (2537), 2062 states have internal predecessors, (2537), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:23:53,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2172 states to 2172 states and 2709 transitions. [2024-12-01 13:23:53,372 INFO L78 Accepts]: Start accepts. Automaton has 2172 states and 2709 transitions. Word has length 152 [2024-12-01 13:23:53,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:23:53,373 INFO L471 AbstractCegarLoop]: Abstraction has 2172 states and 2709 transitions. [2024-12-01 13:23:53,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-01 13:23:53,373 INFO L276 IsEmpty]: Start isEmpty. Operand 2172 states and 2709 transitions. [2024-12-01 13:23:53,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-01 13:23:53,374 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:23:53,374 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:23:53,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2024-12-01 13:23:53,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:23:53,574 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:23:53,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:23:53,575 INFO L85 PathProgramCache]: Analyzing trace with hash 257784576, now seen corresponding path program 1 times [2024-12-01 13:23:53,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:23:53,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472392462] [2024-12-01 13:23:53,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:23:53,575 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 [2024-12-01 13:23:53,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:23:53,576 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:23:53,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-12-01 13:23:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:23:53,857 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-01 13:23:53,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:23:53,864 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 [2024-12-01 13:23:53,867 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 [2024-12-01 13:23:53,869 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 [2024-12-01 13:23:53,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-01 13:23:54,047 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:54,047 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 [2024-12-01 13:23:54,178 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 65 treesize of output 49 [2024-12-01 13:23:54,185 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:54,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 81 [2024-12-01 13:23:54,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2024-12-01 13:23:54,536 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:54,536 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 90 treesize of output 64 [2024-12-01 13:23:54,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:54,750 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 90 treesize of output 64 [2024-12-01 13:23:55,126 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:55,127 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 94 treesize of output 86 [2024-12-01 13:23:56,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:56,010 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 111 treesize of output 55 [2024-12-01 13:23:56,179 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-12-01 13:23:56,179 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:23:56,180 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:23:56,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1472392462] [2024-12-01 13:23:56,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1472392462] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:23:56,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:23:56,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-01 13:23:56,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828049401] [2024-12-01 13:23:56,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:23:56,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-01 13:23:56,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:23:56,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-01 13:23:56,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-12-01 13:23:56,181 INFO L87 Difference]: Start difference. First operand 2172 states and 2709 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-01 13:24:02,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:02,826 INFO L93 Difference]: Finished difference Result 4089 states and 5087 transitions. [2024-12-01 13:24:02,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-01 13:24:02,827 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 152 [2024-12-01 13:24:02,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:02,832 INFO L225 Difference]: With dead ends: 4089 [2024-12-01 13:24:02,832 INFO L226 Difference]: Without dead ends: 2467 [2024-12-01 13:24:02,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 138 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-12-01 13:24:02,834 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 171 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:02,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 737 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-12-01 13:24:02,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2467 states. [2024-12-01 13:24:03,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2467 to 2224. [2024-12-01 13:24:03,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2224 states, 2106 states have (on average 1.2302943969610636) internal successors, (2591), 2114 states have internal predecessors, (2591), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:24:03,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2224 states to 2224 states and 2763 transitions. [2024-12-01 13:24:03,040 INFO L78 Accepts]: Start accepts. Automaton has 2224 states and 2763 transitions. Word has length 152 [2024-12-01 13:24:03,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:03,040 INFO L471 AbstractCegarLoop]: Abstraction has 2224 states and 2763 transitions. [2024-12-01 13:24:03,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-01 13:24:03,041 INFO L276 IsEmpty]: Start isEmpty. Operand 2224 states and 2763 transitions. [2024-12-01 13:24:03,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-12-01 13:24:03,043 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:03,043 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:03,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2024-12-01 13:24:03,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:24:03,243 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:03,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:03,244 INFO L85 PathProgramCache]: Analyzing trace with hash 550314820, now seen corresponding path program 1 times [2024-12-01 13:24:03,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:24:03,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982885270] [2024-12-01 13:24:03,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:03,244 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 [2024-12-01 13:24:03,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:24:03,246 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:24:03,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-12-01 13:24:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:03,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-01 13:24:03,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:24:03,859 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 [2024-12-01 13:24:03,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2024-12-01 13:24:03,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2024-12-01 13:24:03,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2024-12-01 13:24:03,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2578 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-12-01 13:24:03,923 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:24:03,923 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:24:03,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982885270] [2024-12-01 13:24:03,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982885270] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:24:03,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:24:03,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:24:03,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833503633] [2024-12-01 13:24:03,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:03,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:24:03,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:24:03,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:24:03,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:24:03,924 INFO L87 Difference]: Start difference. First operand 2224 states and 2763 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:04,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:04,571 INFO L93 Difference]: Finished difference Result 5642 states and 7029 transitions. [2024-12-01 13:24:04,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:24:04,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 278 [2024-12-01 13:24:04,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:04,577 INFO L225 Difference]: With dead ends: 5642 [2024-12-01 13:24:04,577 INFO L226 Difference]: Without dead ends: 3968 [2024-12-01 13:24:04,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-01 13:24:04,579 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 56 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:04,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 536 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 13:24:04,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3968 states. [2024-12-01 13:24:04,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3968 to 2500. [2024-12-01 13:24:04,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2500 states, 2382 states have (on average 1.2405541561712847) internal successors, (2955), 2390 states have internal predecessors, (2955), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:24:04,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2500 states to 2500 states and 3127 transitions. [2024-12-01 13:24:04,788 INFO L78 Accepts]: Start accepts. Automaton has 2500 states and 3127 transitions. Word has length 278 [2024-12-01 13:24:04,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:04,789 INFO L471 AbstractCegarLoop]: Abstraction has 2500 states and 3127 transitions. [2024-12-01 13:24:04,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:04,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2500 states and 3127 transitions. [2024-12-01 13:24:04,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-12-01 13:24:04,791 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:04,791 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:04,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2024-12-01 13:24:04,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:24:04,992 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:04,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:04,992 INFO L85 PathProgramCache]: Analyzing trace with hash -423009302, now seen corresponding path program 1 times [2024-12-01 13:24:04,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:24:04,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476100559] [2024-12-01 13:24:04,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:04,993 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 [2024-12-01 13:24:04,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:24:04,994 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:24:04,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2024-12-01 13:24:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:05,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-01 13:24:05,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:24:05,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-12-01 13:24:05,371 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:24:05,371 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:24:05,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476100559] [2024-12-01 13:24:05,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476100559] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:24:05,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:24:05,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:24:05,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906697825] [2024-12-01 13:24:05,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:05,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:24:05,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:24:05,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:24:05,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:24:05,373 INFO L87 Difference]: Start difference. First operand 2500 states and 3127 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:05,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:05,733 INFO L93 Difference]: Finished difference Result 4828 states and 6038 transitions. [2024-12-01 13:24:05,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:24:05,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 280 [2024-12-01 13:24:05,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:05,737 INFO L225 Difference]: With dead ends: 4828 [2024-12-01 13:24:05,738 INFO L226 Difference]: Without dead ends: 2746 [2024-12-01 13:24:05,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:24:05,739 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 61 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:05,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 248 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:24:05,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2024-12-01 13:24:06,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2242. [2024-12-01 13:24:06,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2242 states, 2124 states have (on average 1.2085687382297552) internal successors, (2567), 2132 states have internal predecessors, (2567), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:24:06,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2242 states to 2242 states and 2739 transitions. [2024-12-01 13:24:06,043 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 2739 transitions. Word has length 280 [2024-12-01 13:24:06,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:06,043 INFO L471 AbstractCegarLoop]: Abstraction has 2242 states and 2739 transitions. [2024-12-01 13:24:06,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:06,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 2739 transitions. [2024-12-01 13:24:06,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-12-01 13:24:06,046 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:06,046 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:06,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2024-12-01 13:24:06,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:24:06,247 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:06,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:06,247 INFO L85 PathProgramCache]: Analyzing trace with hash -452658814, now seen corresponding path program 1 times [2024-12-01 13:24:06,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:24:06,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062950503] [2024-12-01 13:24:06,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:06,247 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 [2024-12-01 13:24:06,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:24:06,249 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:24:06,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2024-12-01 13:24:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:06,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-01 13:24:06,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:24:06,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2566 trivial. 0 not checked. [2024-12-01 13:24:06,675 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:24:06,675 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:24:06,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1062950503] [2024-12-01 13:24:06,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1062950503] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:24:06,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:24:06,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:24:06,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829564840] [2024-12-01 13:24:06,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:06,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:24:06,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:24:06,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:24:06,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:24:06,676 INFO L87 Difference]: Start difference. First operand 2242 states and 2739 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:07,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:07,358 INFO L93 Difference]: Finished difference Result 4024 states and 4900 transitions. [2024-12-01 13:24:07,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:24:07,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 282 [2024-12-01 13:24:07,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:07,365 INFO L225 Difference]: With dead ends: 4024 [2024-12-01 13:24:07,365 INFO L226 Difference]: Without dead ends: 2320 [2024-12-01 13:24:07,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:24:07,368 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 44 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:07,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 443 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 13:24:07,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2024-12-01 13:24:07,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2134. [2024-12-01 13:24:07,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 2016 states have (on average 1.2048611111111112) internal successors, (2429), 2024 states have internal predecessors, (2429), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:24:07,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 2601 transitions. [2024-12-01 13:24:07,612 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 2601 transitions. Word has length 282 [2024-12-01 13:24:07,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:07,612 INFO L471 AbstractCegarLoop]: Abstraction has 2134 states and 2601 transitions. [2024-12-01 13:24:07,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:07,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 2601 transitions. [2024-12-01 13:24:07,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-12-01 13:24:07,616 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:07,616 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:07,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2024-12-01 13:24:07,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:24:07,817 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:07,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:07,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1451303246, now seen corresponding path program 1 times [2024-12-01 13:24:07,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:24:07,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930982774] [2024-12-01 13:24:07,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:07,818 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 [2024-12-01 13:24:07,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:24:07,820 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:24:07,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2024-12-01 13:24:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:08,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-01 13:24:08,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:24:08,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2583 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-12-01 13:24:08,256 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:24:08,256 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:24:08,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930982774] [2024-12-01 13:24:08,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930982774] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:24:08,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:24:08,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:24:08,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503795475] [2024-12-01 13:24:08,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:08,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:24:08,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:24:08,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:24:08,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:24:08,258 INFO L87 Difference]: Start difference. First operand 2134 states and 2601 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:08,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:08,511 INFO L93 Difference]: Finished difference Result 3965 states and 4774 transitions. [2024-12-01 13:24:08,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:24:08,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 283 [2024-12-01 13:24:08,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:08,516 INFO L225 Difference]: With dead ends: 3965 [2024-12-01 13:24:08,516 INFO L226 Difference]: Without dead ends: 2333 [2024-12-01 13:24:08,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:24:08,518 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 48 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:08,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 315 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:24:08,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2333 states. [2024-12-01 13:24:08,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2333 to 1996. [2024-12-01 13:24:08,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1996 states, 1878 states have (on average 1.1815761448349307) internal successors, (2219), 1886 states have internal predecessors, (2219), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:24:08,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1996 states to 1996 states and 2391 transitions. [2024-12-01 13:24:08,718 INFO L78 Accepts]: Start accepts. Automaton has 1996 states and 2391 transitions. Word has length 283 [2024-12-01 13:24:08,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:08,718 INFO L471 AbstractCegarLoop]: Abstraction has 1996 states and 2391 transitions. [2024-12-01 13:24:08,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:08,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1996 states and 2391 transitions. [2024-12-01 13:24:08,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-12-01 13:24:08,721 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:08,721 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:08,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2024-12-01 13:24:08,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:24:08,921 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:08,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:08,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1064392808, now seen corresponding path program 1 times [2024-12-01 13:24:08,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:24:08,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809343628] [2024-12-01 13:24:08,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:08,922 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 [2024-12-01 13:24:08,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:24:08,924 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:24:08,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2024-12-01 13:24:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:09,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-01 13:24:09,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:24:09,553 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 45 treesize of output 32 [2024-12-01 13:24:09,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 8 [2024-12-01 13:24:09,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 8 [2024-12-01 13:24:09,638 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 50 treesize of output 30 [2024-12-01 13:24:09,657 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 50 treesize of output 30 [2024-12-01 13:24:09,691 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 50 treesize of output 30 [2024-12-01 13:24:09,808 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 171 treesize of output 139 [2024-12-01 13:24:09,843 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 2562 trivial. 0 not checked. [2024-12-01 13:24:09,843 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:24:09,843 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:24:09,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [809343628] [2024-12-01 13:24:09,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [809343628] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:24:09,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:24:09,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 13:24:09,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231676058] [2024-12-01 13:24:09,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:09,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:24:09,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:24:09,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:24:09,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:24:09,844 INFO L87 Difference]: Start difference. First operand 1996 states and 2391 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:10,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:10,628 INFO L93 Difference]: Finished difference Result 4953 states and 5905 transitions. [2024-12-01 13:24:10,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:24:10,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-12-01 13:24:10,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:10,634 INFO L225 Difference]: With dead ends: 4953 [2024-12-01 13:24:10,634 INFO L226 Difference]: Without dead ends: 3459 [2024-12-01 13:24:10,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-01 13:24:10,636 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 54 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:10,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 447 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-01 13:24:10,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3459 states. [2024-12-01 13:24:10,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3459 to 2254. [2024-12-01 13:24:10,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2254 states, 2136 states have (on average 1.2008426966292134) internal successors, (2565), 2144 states have internal predecessors, (2565), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:24:10,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2254 states to 2254 states and 2737 transitions. [2024-12-01 13:24:10,841 INFO L78 Accepts]: Start accepts. Automaton has 2254 states and 2737 transitions. Word has length 285 [2024-12-01 13:24:10,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:10,841 INFO L471 AbstractCegarLoop]: Abstraction has 2254 states and 2737 transitions. [2024-12-01 13:24:10,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:10,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2254 states and 2737 transitions. [2024-12-01 13:24:10,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-12-01 13:24:10,844 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:10,844 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:10,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2024-12-01 13:24:11,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:24:11,045 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:11,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:11,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1322558246, now seen corresponding path program 1 times [2024-12-01 13:24:11,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:24:11,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276539641] [2024-12-01 13:24:11,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:11,046 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 [2024-12-01 13:24:11,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:24:11,048 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:24:11,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2024-12-01 13:24:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:11,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-01 13:24:11,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:24:11,659 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 8 treesize of output 1 [2024-12-01 13:24:11,713 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 [2024-12-01 13:24:11,829 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:11,829 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 41 treesize of output 28 [2024-12-01 13:24:11,921 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:11,922 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 41 treesize of output 28 [2024-12-01 13:24:12,013 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:12,013 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 [2024-12-01 13:24:12,196 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:12,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 51 [2024-12-01 13:24:12,448 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:12,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 54 [2024-12-01 13:24:12,784 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 97 treesize of output 75 [2024-12-01 13:24:12,792 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:12,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 123 [2024-12-01 13:24:12,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 41 [2024-12-01 13:24:13,359 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:13,360 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 154 treesize of output 110 [2024-12-01 13:24:13,561 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:13,561 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 154 treesize of output 110 [2024-12-01 13:24:13,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:13,799 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 154 treesize of output 110 [2024-12-01 13:24:14,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 1414 proven. 36 refuted. 0 times theorem prover too weak. 1135 trivial. 0 not checked. [2024-12-01 13:24:14,287 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:24:14,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2559 trivial. 0 not checked. [2024-12-01 13:24:14,563 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:24:14,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276539641] [2024-12-01 13:24:14,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276539641] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:24:14,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:24:14,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 14 [2024-12-01 13:24:14,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898233598] [2024-12-01 13:24:14,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:14,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:24:14,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:24:14,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:24:14,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-12-01 13:24:14,564 INFO L87 Difference]: Start difference. First operand 2254 states and 2737 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:15,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:15,312 INFO L93 Difference]: Finished difference Result 5415 states and 6449 transitions. [2024-12-01 13:24:15,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:24:15,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-12-01 13:24:15,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:15,322 INFO L225 Difference]: With dead ends: 5415 [2024-12-01 13:24:15,322 INFO L226 Difference]: Without dead ends: 3537 [2024-12-01 13:24:15,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 553 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-12-01 13:24:15,325 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 143 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:15,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 243 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 13:24:15,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3537 states. [2024-12-01 13:24:15,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3537 to 2716. [2024-12-01 13:24:15,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2716 states, 2598 states have (on average 1.1943802925327174) internal successors, (3103), 2606 states have internal predecessors, (3103), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:24:15,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 3275 transitions. [2024-12-01 13:24:15,611 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 3275 transitions. Word has length 285 [2024-12-01 13:24:15,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:15,611 INFO L471 AbstractCegarLoop]: Abstraction has 2716 states and 3275 transitions. [2024-12-01 13:24:15,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:15,611 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 3275 transitions. [2024-12-01 13:24:15,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-12-01 13:24:15,616 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:15,616 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:15,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2024-12-01 13:24:15,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:24:15,817 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:15,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:15,817 INFO L85 PathProgramCache]: Analyzing trace with hash 735752232, now seen corresponding path program 1 times [2024-12-01 13:24:15,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:24:15,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326353088] [2024-12-01 13:24:15,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:15,818 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 [2024-12-01 13:24:15,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:24:15,819 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:24:15,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2024-12-01 13:24:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:16,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-01 13:24:16,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:24:16,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2572 trivial. 0 not checked. [2024-12-01 13:24:16,202 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:24:16,202 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:24:16,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326353088] [2024-12-01 13:24:16,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1326353088] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:24:16,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:24:16,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 13:24:16,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722365909] [2024-12-01 13:24:16,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:16,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 13:24:16,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:24:16,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 13:24:16,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:24:16,203 INFO L87 Difference]: Start difference. First operand 2716 states and 3275 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:16,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:16,466 INFO L93 Difference]: Finished difference Result 4660 states and 5593 transitions. [2024-12-01 13:24:16,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 13:24:16,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-12-01 13:24:16,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:16,470 INFO L225 Difference]: With dead ends: 4660 [2024-12-01 13:24:16,470 INFO L226 Difference]: Without dead ends: 2536 [2024-12-01 13:24:16,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:24:16,472 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:16,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 387 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:24:16,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2536 states. [2024-12-01 13:24:16,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2536 to 2434. [2024-12-01 13:24:16,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2434 states, 2316 states have (on average 1.168825561312608) internal successors, (2707), 2324 states have internal predecessors, (2707), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:24:16,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2434 states to 2434 states and 2879 transitions. [2024-12-01 13:24:16,670 INFO L78 Accepts]: Start accepts. Automaton has 2434 states and 2879 transitions. Word has length 285 [2024-12-01 13:24:16,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:16,670 INFO L471 AbstractCegarLoop]: Abstraction has 2434 states and 2879 transitions. [2024-12-01 13:24:16,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:16,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2434 states and 2879 transitions. [2024-12-01 13:24:16,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-12-01 13:24:16,673 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:16,673 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:16,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2024-12-01 13:24:16,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:24:16,873 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:16,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:16,874 INFO L85 PathProgramCache]: Analyzing trace with hash -544111446, now seen corresponding path program 1 times [2024-12-01 13:24:16,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:24:16,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407650645] [2024-12-01 13:24:16,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:16,874 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 [2024-12-01 13:24:16,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:24:16,876 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:24:16,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2024-12-01 13:24:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:17,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-01 13:24:17,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:24:17,495 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 [2024-12-01 13:24:17,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-01 13:24:17,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-01 13:24:17,642 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 [2024-12-01 13:24:17,793 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:17,793 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 41 treesize of output 28 [2024-12-01 13:24:17,909 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:17,910 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 [2024-12-01 13:24:18,101 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:18,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 51 [2024-12-01 13:24:18,357 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:18,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 54 [2024-12-01 13:24:18,540 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:18,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 64 [2024-12-01 13:24:19,106 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 107 treesize of output 83 [2024-12-01 13:24:19,115 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:19,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 83 treesize of output 141 [2024-12-01 13:24:19,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2024-12-01 13:24:19,861 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:19,861 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 174 treesize of output 127 [2024-12-01 13:24:20,145 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:20,145 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 174 treesize of output 127 [2024-12-01 13:24:20,480 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:20,480 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 174 treesize of output 127 [2024-12-01 13:24:20,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 1750 proven. 48 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2024-12-01 13:24:20,845 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:24:21,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-12-01 13:24:21,108 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:24:21,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407650645] [2024-12-01 13:24:21,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [407650645] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:24:21,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:24:21,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 16 [2024-12-01 13:24:21,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123931433] [2024-12-01 13:24:21,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:21,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:24:21,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:24:21,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:24:21,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:24:21,109 INFO L87 Difference]: Start difference. First operand 2434 states and 2879 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:21,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:21,772 INFO L93 Difference]: Finished difference Result 4848 states and 5678 transitions. [2024-12-01 13:24:21,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:24:21,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-12-01 13:24:21,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:21,777 INFO L225 Difference]: With dead ends: 4848 [2024-12-01 13:24:21,778 INFO L226 Difference]: Without dead ends: 2952 [2024-12-01 13:24:21,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 551 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:24:21,780 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 55 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:21,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 325 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 13:24:21,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2024-12-01 13:24:22,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2386. [2024-12-01 13:24:22,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2386 states, 2268 states have (on average 1.1569664902998236) internal successors, (2624), 2276 states have internal predecessors, (2624), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:24:22,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2386 states to 2386 states and 2796 transitions. [2024-12-01 13:24:22,016 INFO L78 Accepts]: Start accepts. Automaton has 2386 states and 2796 transitions. Word has length 285 [2024-12-01 13:24:22,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:22,017 INFO L471 AbstractCegarLoop]: Abstraction has 2386 states and 2796 transitions. [2024-12-01 13:24:22,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:22,017 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states and 2796 transitions. [2024-12-01 13:24:22,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-12-01 13:24:22,019 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:22,019 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:22,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2024-12-01 13:24:22,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:24:22,220 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:22,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:22,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1204941418, now seen corresponding path program 1 times [2024-12-01 13:24:22,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:24:22,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412786924] [2024-12-01 13:24:22,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:22,221 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 [2024-12-01 13:24:22,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:24:22,222 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:24:22,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2024-12-01 13:24:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:22,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-01 13:24:22,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:24:22,839 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 [2024-12-01 13:24:22,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-01 13:24:22,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-01 13:24:22,974 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 [2024-12-01 13:24:23,099 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:23,100 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 41 treesize of output 28 [2024-12-01 13:24:23,191 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:23,191 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 41 treesize of output 28 [2024-12-01 13:24:23,283 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:23,283 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 41 treesize of output 28 [2024-12-01 13:24:23,499 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:23,499 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 27 [2024-12-01 13:24:23,572 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:23,572 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 [2024-12-01 13:24:23,587 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:23,588 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 [2024-12-01 13:24:23,610 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:23,611 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 [2024-12-01 13:24:23,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 1366 proven. 36 refuted. 0 times theorem prover too weak. 1183 trivial. 0 not checked. [2024-12-01 13:24:23,677 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:24:23,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2559 trivial. 0 not checked. [2024-12-01 13:24:23,964 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:24:23,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412786924] [2024-12-01 13:24:23,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412786924] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:24:23,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:24:23,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 14 [2024-12-01 13:24:23,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81124767] [2024-12-01 13:24:23,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:23,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:24:23,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:24:23,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:24:23,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-12-01 13:24:23,965 INFO L87 Difference]: Start difference. First operand 2386 states and 2796 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:24,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:24,849 INFO L93 Difference]: Finished difference Result 4679 states and 5435 transitions. [2024-12-01 13:24:24,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-01 13:24:24,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-12-01 13:24:24,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:24,853 INFO L225 Difference]: With dead ends: 4679 [2024-12-01 13:24:24,853 INFO L226 Difference]: Without dead ends: 2831 [2024-12-01 13:24:24,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 556 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-12-01 13:24:24,855 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 78 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:24,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 521 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-01 13:24:24,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2024-12-01 13:24:25,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2422. [2024-12-01 13:24:25,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2422 states, 2304 states have (on average 1.1493055555555556) internal successors, (2648), 2312 states have internal predecessors, (2648), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:24:25,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 2820 transitions. [2024-12-01 13:24:25,059 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 2820 transitions. Word has length 285 [2024-12-01 13:24:25,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:25,060 INFO L471 AbstractCegarLoop]: Abstraction has 2422 states and 2820 transitions. [2024-12-01 13:24:25,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:25,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 2820 transitions. [2024-12-01 13:24:25,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-12-01 13:24:25,064 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:25,064 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:25,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Ended with exit code 0 [2024-12-01 13:24:25,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:24:25,264 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:25,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:25,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1463106856, now seen corresponding path program 1 times [2024-12-01 13:24:25,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:24:25,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000384052] [2024-12-01 13:24:25,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:25,265 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 [2024-12-01 13:24:25,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:24:25,267 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:24:25,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2024-12-01 13:24:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:25,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-01 13:24:25,868 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:24:25,874 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 [2024-12-01 13:24:25,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2024-12-01 13:24:25,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2024-12-01 13:24:25,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2024-12-01 13:24:25,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 2562 trivial. 0 not checked. [2024-12-01 13:24:25,949 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:24:25,949 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:24:25,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000384052] [2024-12-01 13:24:25,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2000384052] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:24:25,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:24:25,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 13:24:25,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134974541] [2024-12-01 13:24:25,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:25,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:24:25,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:24:25,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:24:25,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:24:25,950 INFO L87 Difference]: Start difference. First operand 2422 states and 2820 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:26,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:26,607 INFO L93 Difference]: Finished difference Result 4543 states and 5260 transitions. [2024-12-01 13:24:26,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:24:26,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-12-01 13:24:26,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:26,612 INFO L225 Difference]: With dead ends: 4543 [2024-12-01 13:24:26,612 INFO L226 Difference]: Without dead ends: 2683 [2024-12-01 13:24:26,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-01 13:24:26,614 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 55 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:26,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 660 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 13:24:26,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2024-12-01 13:24:26,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2094. [2024-12-01 13:24:26,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2094 states, 1976 states have (on average 1.1452429149797572) internal successors, (2263), 1984 states have internal predecessors, (2263), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:24:26,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2094 states to 2094 states and 2435 transitions. [2024-12-01 13:24:26,831 INFO L78 Accepts]: Start accepts. Automaton has 2094 states and 2435 transitions. Word has length 285 [2024-12-01 13:24:26,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:26,831 INFO L471 AbstractCegarLoop]: Abstraction has 2094 states and 2435 transitions. [2024-12-01 13:24:26,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:26,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2094 states and 2435 transitions. [2024-12-01 13:24:26,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-12-01 13:24:26,833 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:26,834 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:26,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2024-12-01 13:24:27,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:24:27,034 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:27,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:27,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1206871910, now seen corresponding path program 1 times [2024-12-01 13:24:27,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:24:27,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970831808] [2024-12-01 13:24:27,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:27,035 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 [2024-12-01 13:24:27,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:24:27,036 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:24:27,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2024-12-01 13:24:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:27,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-01 13:24:27,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:24:27,673 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 [2024-12-01 13:24:27,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-01 13:24:27,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-01 13:24:27,985 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 [2024-12-01 13:24:28,154 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:28,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 42 [2024-12-01 13:24:28,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:28,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2024-12-01 13:24:28,558 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:28,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-12-01 13:24:28,857 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:28,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2024-12-01 13:24:29,441 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 106 treesize of output 82 [2024-12-01 13:24:29,452 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:29,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 82 treesize of output 140 [2024-12-01 13:24:29,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 56 [2024-12-01 13:24:30,230 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:30,230 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 184 treesize of output 137 [2024-12-01 13:24:30,493 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:30,494 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 184 treesize of output 137 [2024-12-01 13:24:30,945 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:30,946 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 184 treesize of output 137 [2024-12-01 13:24:31,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 1716 proven. 42 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2024-12-01 13:24:31,409 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:24:31,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2024-12-01 13:24:31,677 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:24:31,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970831808] [2024-12-01 13:24:31,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970831808] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:24:31,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:24:31,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 17 [2024-12-01 13:24:31,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241264388] [2024-12-01 13:24:31,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:31,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:24:31,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:24:31,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:24:31,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:24:31,679 INFO L87 Difference]: Start difference. First operand 2094 states and 2435 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:32,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:32,399 INFO L93 Difference]: Finished difference Result 4039 states and 4652 transitions. [2024-12-01 13:24:32,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 13:24:32,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-12-01 13:24:32,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:32,403 INFO L225 Difference]: With dead ends: 4039 [2024-12-01 13:24:32,403 INFO L226 Difference]: Without dead ends: 2218 [2024-12-01 13:24:32,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 549 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2024-12-01 13:24:32,405 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 41 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:32,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 585 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-01 13:24:32,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2024-12-01 13:24:32,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 1968. [2024-12-01 13:24:32,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1968 states, 1850 states have (on average 1.1362162162162162) internal successors, (2102), 1858 states have internal predecessors, (2102), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:24:32,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1968 states to 1968 states and 2274 transitions. [2024-12-01 13:24:32,618 INFO L78 Accepts]: Start accepts. Automaton has 1968 states and 2274 transitions. Word has length 285 [2024-12-01 13:24:32,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:32,618 INFO L471 AbstractCegarLoop]: Abstraction has 1968 states and 2274 transitions. [2024-12-01 13:24:32,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:32,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1968 states and 2274 transitions. [2024-12-01 13:24:32,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-12-01 13:24:32,620 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:32,620 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:32,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2024-12-01 13:24:32,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:24:32,821 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:32,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:32,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1676061096, now seen corresponding path program 1 times [2024-12-01 13:24:32,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:24:32,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472931520] [2024-12-01 13:24:32,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:32,822 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 [2024-12-01 13:24:32,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:24:32,823 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:24:32,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2024-12-01 13:24:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:33,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-12-01 13:24:33,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:24:33,461 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 [2024-12-01 13:24:33,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-01 13:24:33,896 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:33,896 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 [2024-12-01 13:24:34,179 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:34,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 51 [2024-12-01 13:24:34,503 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:34,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 64 [2024-12-01 13:24:34,895 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:34,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 67 [2024-12-01 13:24:35,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:35,200 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 66 treesize of output 77 [2024-12-01 13:24:35,664 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:35,664 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 81 treesize of output 80 [2024-12-01 13:24:36,392 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:36,392 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 117 treesize of output 102 [2024-12-01 13:24:36,670 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:36,670 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 102 treesize of output 89 [2024-12-01 13:24:36,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 89 [2024-12-01 13:24:37,328 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:37,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 91 treesize of output 84 [2024-12-01 13:24:37,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 1686 proven. 75 refuted. 0 times theorem prover too weak. 824 trivial. 0 not checked. [2024-12-01 13:24:37,570 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:24:38,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2559 trivial. 0 not checked. [2024-12-01 13:24:38,076 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:24:38,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1472931520] [2024-12-01 13:24:38,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1472931520] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:24:38,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:24:38,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [21] total 26 [2024-12-01 13:24:38,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705331026] [2024-12-01 13:24:38,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:38,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 13:24:38,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:24:38,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 13:24:38,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=509, Unknown=0, NotChecked=0, Total=650 [2024-12-01 13:24:38,078 INFO L87 Difference]: Start difference. First operand 1968 states and 2274 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:39,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:39,271 INFO L93 Difference]: Finished difference Result 4363 states and 4941 transitions. [2024-12-01 13:24:39,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-01 13:24:39,272 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-12-01 13:24:39,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:39,275 INFO L225 Difference]: With dead ends: 4363 [2024-12-01 13:24:39,275 INFO L226 Difference]: Without dead ends: 2572 [2024-12-01 13:24:39,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 543 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=175, Invalid=695, Unknown=0, NotChecked=0, Total=870 [2024-12-01 13:24:39,277 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 214 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:39,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 536 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-01 13:24:39,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2024-12-01 13:24:39,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 1878. [2024-12-01 13:24:39,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1878 states, 1760 states have (on average 1.1295454545454546) internal successors, (1988), 1768 states have internal predecessors, (1988), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:24:39,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2160 transitions. [2024-12-01 13:24:39,480 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2160 transitions. Word has length 285 [2024-12-01 13:24:39,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:39,480 INFO L471 AbstractCegarLoop]: Abstraction has 1878 states and 2160 transitions. [2024-12-01 13:24:39,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:39,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2160 transitions. [2024-12-01 13:24:39,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-12-01 13:24:39,482 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:39,482 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:39,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Ended with exit code 0 [2024-12-01 13:24:39,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:24:39,683 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:39,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:39,683 INFO L85 PathProgramCache]: Analyzing trace with hash -12882646, now seen corresponding path program 1 times [2024-12-01 13:24:39,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:24:39,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239475439] [2024-12-01 13:24:39,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:39,684 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 [2024-12-01 13:24:39,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:24:39,685 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:24:39,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2024-12-01 13:24:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:40,281 INFO L256 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-01 13:24:40,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:24:40,291 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 [2024-12-01 13:24:40,427 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 [2024-12-01 13:24:40,606 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:40,606 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 [2024-12-01 13:24:40,779 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:40,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 42 [2024-12-01 13:24:41,006 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:41,006 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 61 treesize of output 45 [2024-12-01 13:24:41,192 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:41,193 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 56 treesize of output 55 [2024-12-01 13:24:41,503 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:41,503 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 71 treesize of output 58 [2024-12-01 13:24:41,753 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:41,753 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 66 treesize of output 68 [2024-12-01 13:24:42,228 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:42,228 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 77 treesize of output 71 [2024-12-01 13:24:42,384 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:42,384 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 81 treesize of output 71 [2024-12-01 13:24:42,497 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 81 treesize of output 71 [2024-12-01 13:24:42,677 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:42,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 80 treesize of output 70 [2024-12-01 13:24:42,829 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:42,830 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 78 treesize of output 36 [2024-12-01 13:24:42,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 1700 proven. 42 refuted. 0 times theorem prover too weak. 843 trivial. 0 not checked. [2024-12-01 13:24:42,885 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:24:43,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2585 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2567 trivial. 0 not checked. [2024-12-01 13:24:43,101 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:24:43,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239475439] [2024-12-01 13:24:43,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239475439] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:24:43,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:24:43,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 17 [2024-12-01 13:24:43,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374828659] [2024-12-01 13:24:43,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:43,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:24:43,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:24:43,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:24:43,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:24:43,103 INFO L87 Difference]: Start difference. First operand 1878 states and 2160 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:43,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:43,724 INFO L93 Difference]: Finished difference Result 3764 states and 4282 transitions. [2024-12-01 13:24:43,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-01 13:24:43,725 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 285 [2024-12-01 13:24:43,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:43,727 INFO L225 Difference]: With dead ends: 3764 [2024-12-01 13:24:43,727 INFO L226 Difference]: Without dead ends: 1979 [2024-12-01 13:24:43,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 551 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2024-12-01 13:24:43,729 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 78 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:43,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 397 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 13:24:43,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2024-12-01 13:24:43,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1741. [2024-12-01 13:24:43,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1741 states, 1623 states have (on average 1.1084411583487368) internal successors, (1799), 1631 states have internal predecessors, (1799), 86 states have call successors, (86), 31 states have call predecessors, (86), 31 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-01 13:24:43,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 1971 transitions. [2024-12-01 13:24:43,925 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 1971 transitions. Word has length 285 [2024-12-01 13:24:43,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:43,926 INFO L471 AbstractCegarLoop]: Abstraction has 1741 states and 1971 transitions. [2024-12-01 13:24:43,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:43,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 1971 transitions. [2024-12-01 13:24:43,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-12-01 13:24:43,928 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:43,928 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:43,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Ended with exit code 0 [2024-12-01 13:24:44,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:24:44,128 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:44,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:44,129 INFO L85 PathProgramCache]: Analyzing trace with hash -277411499, now seen corresponding path program 1 times [2024-12-01 13:24:44,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:24:44,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92422058] [2024-12-01 13:24:44,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:44,129 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 [2024-12-01 13:24:44,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:24:44,131 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-01 13:24:44,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2024-12-01 13:24:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:44,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-01 13:24:44,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:24:44,793 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 [2024-12-01 13:24:44,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-01 13:24:45,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-01 13:24:45,119 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 [2024-12-01 13:24:45,269 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:45,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 42 [2024-12-01 13:24:45,492 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:45,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-12-01 13:24:45,802 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:45,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2024-12-01 13:24:46,143 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:46,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 76 [2024-12-01 13:24:46,551 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:46,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2024-12-01 13:24:46,950 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:46,950 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 73 treesize of output 87 [2024-12-01 13:24:47,211 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:47,212 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 88 treesize of output 90 [2024-12-01 13:24:47,269 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:47,269 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 88 treesize of output 90 [2024-12-01 13:24:47,506 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:47,507 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 98 treesize of output 94 [2024-12-01 13:24:47,792 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:47,793 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 96 treesize of output 44 [2024-12-01 13:24:47,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 1854 proven. 48 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2024-12-01 13:24:47,832 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:24:48,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2566 trivial. 0 not checked. [2024-12-01 13:24:48,056 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:24:48,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92422058] [2024-12-01 13:24:48,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92422058] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:24:48,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:24:48,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 18 [2024-12-01 13:24:48,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211663815] [2024-12-01 13:24:48,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:48,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:24:48,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:24:48,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:24:48,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-12-01 13:24:48,058 INFO L87 Difference]: Start difference. First operand 1741 states and 1971 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:48,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:24:48,556 INFO L93 Difference]: Finished difference Result 3464 states and 3886 transitions. [2024-12-01 13:24:48,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:24:48,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 286 [2024-12-01 13:24:48,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:24:48,558 INFO L225 Difference]: With dead ends: 3464 [2024-12-01 13:24:48,558 INFO L226 Difference]: Without dead ends: 0 [2024-12-01 13:24:48,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 553 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-12-01 13:24:48,560 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 60 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:24:48,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 328 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 13:24:48,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-01 13:24:48,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-01 13:24:48,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:24:48,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-01 13:24:48,561 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 286 [2024-12-01 13:24:48,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:48,561 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-01 13:24:48,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-01 13:24:48,561 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-01 13:24:48,561 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-01 13:24:48,563 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-01 13:24:48,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Ended with exit code 0 [2024-12-01 13:24:48,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ceeff57-7260-4bab-87c6-84442d52f7e0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:24:48,766 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:48,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.