./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.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_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16590e9bc433910605f5e4d8182c46930e3c9f2a76ed7e606268a246ee561bc1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:44:41,196 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:44:41,289 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:44:41,294 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:44:41,295 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:44:41,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:44:41,332 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:44:41,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:44:41,333 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:44:41,333 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:44:41,334 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:44:41,335 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:44:41,335 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:44:41,335 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:44:41,336 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:44:41,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:44:41,336 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:44:41,337 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:44:41,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:44:41,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:44:41,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:44:41,337 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:44:41,337 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:44:41,337 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:44:41,337 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:44:41,337 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:44:41,337 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:44:41,337 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:44:41,338 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:44:41,338 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:44:41,338 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:44:41,338 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:44:41,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:41,339 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:44:41,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:44:41,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:44:41,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:44:41,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:41,339 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:44:41,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:44:41,339 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:44:41,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:44:41,340 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:44:41,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:44:41,340 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:44:41,340 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:44:41,340 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:44:41,340 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:44:41,340 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_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16590e9bc433910605f5e4d8182c46930e3c9f2a76ed7e606268a246ee561bc1 [2024-11-28 02:44:41,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:44:41,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:44:41,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:44:41,670 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:44:41,670 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:44:41,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i [2024-11-28 02:44:44,823 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/data/aeb5045dd/a47840c4d66d484a911c4d601a2126ff/FLAG4c276d775 [2024-11-28 02:44:45,275 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:44:45,276 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i [2024-11-28 02:44:45,301 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/data/aeb5045dd/a47840c4d66d484a911c4d601a2126ff/FLAG4c276d775 [2024-11-28 02:44:45,336 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/data/aeb5045dd/a47840c4d66d484a911c4d601a2126ff [2024-11-28 02:44:45,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:44:45,343 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:44:45,345 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:44:45,345 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:44:45,353 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:44:45,354 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:44:45" (1/1) ... [2024-11-28 02:44:45,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4c59c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:45, skipping insertion in model container [2024-11-28 02:44:45,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:44:45" (1/1) ... [2024-11-28 02:44:45,387 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:44:45,587 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_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i[915,928] [2024-11-28 02:44:45,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:44:45,684 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:44:45,699 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_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i[915,928] [2024-11-28 02:44:45,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:44:45,812 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:44:45,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:45 WrapperNode [2024-11-28 02:44:45,814 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:44:45,815 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:44:45,816 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:44:45,817 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:44:45,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:45" (1/1) ... [2024-11-28 02:44:45,859 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:45" (1/1) ... [2024-11-28 02:44:45,925 INFO L138 Inliner]: procedures = 30, calls = 179, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 626 [2024-11-28 02:44:45,925 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:44:45,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:44:45,926 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:44:45,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:44:45,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:45" (1/1) ... [2024-11-28 02:44:45,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:45" (1/1) ... [2024-11-28 02:44:45,944 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:45" (1/1) ... [2024-11-28 02:44:45,952 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-28 02:44:45,952 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:45" (1/1) ... [2024-11-28 02:44:45,952 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:45" (1/1) ... [2024-11-28 02:44:45,977 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:45" (1/1) ... [2024-11-28 02:44:45,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:45" (1/1) ... [2024-11-28 02:44:45,985 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:45" (1/1) ... [2024-11-28 02:44:45,991 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:45" (1/1) ... [2024-11-28 02:44:45,998 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:45" (1/1) ... [2024-11-28 02:44:46,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:44:46,009 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:44:46,013 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:44:46,013 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:44:46,014 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:45" (1/1) ... [2024-11-28 02:44:46,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:46,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:46,070 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:44:46,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:44:46,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:44:46,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-28 02:44:46,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-28 02:44:46,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-28 02:44:46,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 02:44:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-28 02:44:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 02:44:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:44:46,111 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:44:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 02:44:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:44:46,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:44:46,300 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:44:46,302 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:44:47,451 INFO L? ?]: Removed 174 outVars from TransFormulas that were not future-live. [2024-11-28 02:44:47,451 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:44:47,473 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:44:47,473 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:44:47,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:44:47 BoogieIcfgContainer [2024-11-28 02:44:47,474 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:44:47,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:44:47,479 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:44:47,485 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:44:47,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:44:45" (1/3) ... [2024-11-28 02:44:47,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a657501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:44:47, skipping insertion in model container [2024-11-28 02:44:47,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:45" (2/3) ... [2024-11-28 02:44:47,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a657501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:44:47, skipping insertion in model container [2024-11-28 02:44:47,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:44:47" (3/3) ... [2024-11-28 02:44:47,488 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-3.i [2024-11-28 02:44:47,506 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:44:47,508 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-3.i that has 2 procedures, 149 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:44:47,597 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:44:47,613 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;@35b06ef2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:44:47,613 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:44:47,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 130 states have (on average 1.4615384615384615) internal successors, (190), 131 states have internal predecessors, (190), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 02:44:47,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 02:44:47,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:47,637 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:47,638 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:44:47,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:47,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1212346061, now seen corresponding path program 1 times [2024-11-28 02:44:47,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:47,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716927563] [2024-11-28 02:44:47,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:47,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:48,810 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-28 02:44:48,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:48,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716927563] [2024-11-28 02:44:48,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716927563] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:44:48,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811370150] [2024-11-28 02:44:48,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:48,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:48,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:48,815 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:48,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:44:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:49,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:44:49,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:44:49,343 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:44:49,343 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:44:49,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811370150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:49,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:44:49,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-28 02:44:49,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428600880] [2024-11-28 02:44:49,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:49,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:44:49,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:49,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:44:49,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:44:49,376 INFO L87 Difference]: Start difference. First operand has 149 states, 130 states have (on average 1.4615384615384615) internal successors, (190), 131 states have internal predecessors, (190), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:44:49,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:49,498 INFO L93 Difference]: Finished difference Result 293 states and 457 transitions. [2024-11-28 02:44:49,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:44:49,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 133 [2024-11-28 02:44:49,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:49,517 INFO L225 Difference]: With dead ends: 293 [2024-11-28 02:44:49,517 INFO L226 Difference]: Without dead ends: 147 [2024-11-28 02:44:49,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:44:49,530 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:49,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 628 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:49,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-28 02:44:49,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-28 02:44:49,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 129 states have (on average 1.434108527131783) internal successors, (185), 129 states have internal predecessors, (185), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 02:44:49,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 217 transitions. [2024-11-28 02:44:49,609 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 217 transitions. Word has length 133 [2024-11-28 02:44:49,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:49,613 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 217 transitions. [2024-11-28 02:44:49,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:44:49,614 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 217 transitions. [2024-11-28 02:44:49,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 02:44:49,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:49,620 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:49,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:44:49,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:49,821 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:44:49,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:49,822 INFO L85 PathProgramCache]: Analyzing trace with hash -500527483, now seen corresponding path program 1 times [2024-11-28 02:44:49,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:49,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204518560] [2024-11-28 02:44:49,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:49,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:50,218 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:44:50,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:50,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204518560] [2024-11-28 02:44:50,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204518560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:50,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:50,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:44:50,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086235970] [2024-11-28 02:44:50,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:50,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:44:50,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:50,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:44:50,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:50,224 INFO L87 Difference]: Start difference. First operand 147 states and 217 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:44:50,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:50,304 INFO L93 Difference]: Finished difference Result 368 states and 546 transitions. [2024-11-28 02:44:50,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:44:50,305 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 135 [2024-11-28 02:44:50,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:50,308 INFO L225 Difference]: With dead ends: 368 [2024-11-28 02:44:50,308 INFO L226 Difference]: Without dead ends: 224 [2024-11-28 02:44:50,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:50,310 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 114 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:50,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 412 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:50,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-28 02:44:50,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 179. [2024-11-28 02:44:50,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 161 states have (on average 1.453416149068323) internal successors, (234), 161 states have internal predecessors, (234), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 02:44:50,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 266 transitions. [2024-11-28 02:44:50,331 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 266 transitions. Word has length 135 [2024-11-28 02:44:50,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:50,332 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 266 transitions. [2024-11-28 02:44:50,332 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:44:50,332 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 266 transitions. [2024-11-28 02:44:50,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 02:44:50,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:50,335 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:50,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:44:50,336 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:44:50,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:50,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1678409010, now seen corresponding path program 1 times [2024-11-28 02:44:50,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:50,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255279531] [2024-11-28 02:44:50,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:50,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:53,268 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:44:53,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:53,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255279531] [2024-11-28 02:44:53,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255279531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:53,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:53,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:44:53,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896745982] [2024-11-28 02:44:53,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:53,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:44:53,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:53,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:44:53,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:44:53,274 INFO L87 Difference]: Start difference. First operand 179 states and 266 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:44:53,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:53,874 INFO L93 Difference]: Finished difference Result 531 states and 792 transitions. [2024-11-28 02:44:53,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:44:53,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 135 [2024-11-28 02:44:53,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:53,878 INFO L225 Difference]: With dead ends: 531 [2024-11-28 02:44:53,879 INFO L226 Difference]: Without dead ends: 355 [2024-11-28 02:44:53,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:44:53,881 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 155 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:53,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 550 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:44:53,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-28 02:44:53,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 347. [2024-11-28 02:44:53,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 312 states have (on average 1.4487179487179487) internal successors, (452), 312 states have internal predecessors, (452), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-28 02:44:53,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 516 transitions. [2024-11-28 02:44:53,926 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 516 transitions. Word has length 135 [2024-11-28 02:44:53,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:53,927 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 516 transitions. [2024-11-28 02:44:53,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:44:53,928 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 516 transitions. [2024-11-28 02:44:53,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 02:44:53,934 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:53,934 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:53,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:44:53,935 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:44:53,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:53,937 INFO L85 PathProgramCache]: Analyzing trace with hash 741335402, now seen corresponding path program 1 times [2024-11-28 02:44:53,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:53,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72604359] [2024-11-28 02:44:53,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:53,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:56,262 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 9 proven. 36 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-28 02:44:56,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:44:56,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72604359] [2024-11-28 02:44:56,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72604359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:44:56,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121399512] [2024-11-28 02:44:56,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:56,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:56,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:56,269 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:56,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:44:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:56,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 02:44:56,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:44:56,753 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:44:56,756 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 27 treesize of output 30 [2024-11-28 02:44:56,813 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:44:56,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 33 [2024-11-28 02:44:57,011 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:44:57,012 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:44:57,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121399512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:57,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:44:57,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-28 02:44:57,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42517558] [2024-11-28 02:44:57,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:57,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:44:57,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:44:57,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:44:57,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:44:57,015 INFO L87 Difference]: Start difference. First operand 347 states and 516 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:44:57,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:57,896 INFO L93 Difference]: Finished difference Result 635 states and 942 transitions. [2024-11-28 02:44:57,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:44:57,897 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 136 [2024-11-28 02:44:57,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:57,903 INFO L225 Difference]: With dead ends: 635 [2024-11-28 02:44:57,903 INFO L226 Difference]: Without dead ends: 459 [2024-11-28 02:44:57,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 140 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:44:57,905 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 117 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:57,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 977 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:44:57,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-28 02:44:57,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 456. [2024-11-28 02:44:57,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 416 states have (on average 1.4519230769230769) internal successors, (604), 417 states have internal predecessors, (604), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 02:44:57,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 676 transitions. [2024-11-28 02:44:57,943 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 676 transitions. Word has length 136 [2024-11-28 02:44:57,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:57,943 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 676 transitions. [2024-11-28 02:44:57,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:44:57,944 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 676 transitions. [2024-11-28 02:44:57,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 02:44:57,946 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:57,947 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:57,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:44:58,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:58,147 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:44:58,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:58,148 INFO L85 PathProgramCache]: Analyzing trace with hash -608558604, now seen corresponding path program 1 times [2024-11-28 02:44:58,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:44:58,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889101078] [2024-11-28 02:44:58,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:58,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:44:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:00,175 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:45:00,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:00,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889101078] [2024-11-28 02:45:00,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889101078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:00,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:00,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:45:00,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657162463] [2024-11-28 02:45:00,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:00,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:45:00,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:00,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:45:00,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:45:00,179 INFO L87 Difference]: Start difference. First operand 456 states and 676 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:00,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:00,688 INFO L93 Difference]: Finished difference Result 917 states and 1360 transitions. [2024-11-28 02:45:00,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:45:00,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-28 02:45:00,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:00,694 INFO L225 Difference]: With dead ends: 917 [2024-11-28 02:45:00,694 INFO L226 Difference]: Without dead ends: 464 [2024-11-28 02:45:00,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:45:00,696 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 147 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:00,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 545 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:45:00,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-28 02:45:00,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 456. [2024-11-28 02:45:00,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 416 states have (on average 1.4495192307692308) internal successors, (603), 417 states have internal predecessors, (603), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 02:45:00,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 675 transitions. [2024-11-28 02:45:00,730 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 675 transitions. Word has length 137 [2024-11-28 02:45:00,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:00,731 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 675 transitions. [2024-11-28 02:45:00,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:00,731 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 675 transitions. [2024-11-28 02:45:00,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 02:45:00,733 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:00,733 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:00,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:45:00,734 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:00,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:00,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1514344948, now seen corresponding path program 1 times [2024-11-28 02:45:00,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:00,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408191354] [2024-11-28 02:45:00,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:00,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:01,011 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-28 02:45:01,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:01,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408191354] [2024-11-28 02:45:01,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408191354] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:45:01,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015281511] [2024-11-28 02:45:01,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:01,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:01,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:01,014 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:45:01,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:45:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:01,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:45:01,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:45:01,412 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:45:01,412 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:45:01,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015281511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:01,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:45:01,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-11-28 02:45:01,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918057114] [2024-11-28 02:45:01,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:01,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:45:01,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:01,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:45:01,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:45:01,414 INFO L87 Difference]: Start difference. First operand 456 states and 675 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:01,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:01,477 INFO L93 Difference]: Finished difference Result 918 states and 1359 transitions. [2024-11-28 02:45:01,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:45:01,479 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-28 02:45:01,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:01,484 INFO L225 Difference]: With dead ends: 918 [2024-11-28 02:45:01,485 INFO L226 Difference]: Without dead ends: 465 [2024-11-28 02:45:01,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:45:01,486 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:01,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 833 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:45:01,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-11-28 02:45:01,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 459. [2024-11-28 02:45:01,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 419 states have (on average 1.4463007159904535) internal successors, (606), 420 states have internal predecessors, (606), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 02:45:01,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 678 transitions. [2024-11-28 02:45:01,526 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 678 transitions. Word has length 137 [2024-11-28 02:45:01,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:01,528 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 678 transitions. [2024-11-28 02:45:01,528 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:01,528 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 678 transitions. [2024-11-28 02:45:01,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 02:45:01,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:01,530 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:01,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:45:01,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:01,731 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:01,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:01,732 INFO L85 PathProgramCache]: Analyzing trace with hash -285582379, now seen corresponding path program 1 times [2024-11-28 02:45:01,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:01,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810964488] [2024-11-28 02:45:01,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:01,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:02,000 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-28 02:45:02,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:02,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810964488] [2024-11-28 02:45:02,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810964488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:45:02,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480408526] [2024-11-28 02:45:02,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:02,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:02,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:02,004 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:45:02,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:45:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:02,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:45:02,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:45:02,376 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:45:02,376 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:45:02,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480408526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:02,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:45:02,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-28 02:45:02,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127491621] [2024-11-28 02:45:02,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:02,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:45:02,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:02,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:45:02,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:45:02,378 INFO L87 Difference]: Start difference. First operand 459 states and 678 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:02,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:02,430 INFO L93 Difference]: Finished difference Result 924 states and 1365 transitions. [2024-11-28 02:45:02,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:45:02,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2024-11-28 02:45:02,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:02,433 INFO L225 Difference]: With dead ends: 924 [2024-11-28 02:45:02,433 INFO L226 Difference]: Without dead ends: 468 [2024-11-28 02:45:02,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:45:02,435 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:02,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 832 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:45:02,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-28 02:45:02,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2024-11-28 02:45:02,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 428 states have (on average 1.4369158878504673) internal successors, (615), 429 states have internal predecessors, (615), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 02:45:02,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 687 transitions. [2024-11-28 02:45:02,472 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 687 transitions. Word has length 138 [2024-11-28 02:45:02,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:02,473 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 687 transitions. [2024-11-28 02:45:02,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:02,474 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 687 transitions. [2024-11-28 02:45:02,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 02:45:02,480 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:02,480 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:02,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:45:02,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:02,681 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:02,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:02,681 INFO L85 PathProgramCache]: Analyzing trace with hash 903635364, now seen corresponding path program 1 times [2024-11-28 02:45:02,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:02,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230091814] [2024-11-28 02:45:02,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:02,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:03,471 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:45:03,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:03,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230091814] [2024-11-28 02:45:03,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230091814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:03,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:03,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:45:03,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206314305] [2024-11-28 02:45:03,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:03,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:45:03,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:03,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:45:03,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:45:03,474 INFO L87 Difference]: Start difference. First operand 468 states and 687 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:04,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:04,592 INFO L93 Difference]: Finished difference Result 936 states and 1378 transitions. [2024-11-28 02:45:04,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:45:04,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2024-11-28 02:45:04,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:04,597 INFO L225 Difference]: With dead ends: 936 [2024-11-28 02:45:04,598 INFO L226 Difference]: Without dead ends: 643 [2024-11-28 02:45:04,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:45:04,600 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 471 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:04,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 567 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:45:04,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-28 02:45:04,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 635. [2024-11-28 02:45:04,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 578 states have (on average 1.4359861591695502) internal successors, (830), 579 states have internal predecessors, (830), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 02:45:04,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 934 transitions. [2024-11-28 02:45:04,689 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 934 transitions. Word has length 138 [2024-11-28 02:45:04,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:04,691 INFO L471 AbstractCegarLoop]: Abstraction has 635 states and 934 transitions. [2024-11-28 02:45:04,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:04,692 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 934 transitions. [2024-11-28 02:45:04,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 02:45:04,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:04,697 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:04,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:45:04,697 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:04,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:04,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1188514192, now seen corresponding path program 1 times [2024-11-28 02:45:04,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:04,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076293319] [2024-11-28 02:45:04,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:04,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:05,514 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:45:05,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:05,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076293319] [2024-11-28 02:45:05,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076293319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:05,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:05,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:45:05,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117008431] [2024-11-28 02:45:05,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:05,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:45:05,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:05,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:45:05,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:45:05,516 INFO L87 Difference]: Start difference. First operand 635 states and 934 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:06,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:06,461 INFO L93 Difference]: Finished difference Result 1275 states and 1876 transitions. [2024-11-28 02:45:06,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:45:06,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2024-11-28 02:45:06,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:06,466 INFO L225 Difference]: With dead ends: 1275 [2024-11-28 02:45:06,466 INFO L226 Difference]: Without dead ends: 757 [2024-11-28 02:45:06,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:45:06,469 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 607 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:06,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 386 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:45:06,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2024-11-28 02:45:06,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 749. [2024-11-28 02:45:06,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 674 states have (on average 1.4198813056379822) internal successors, (957), 675 states have internal predecessors, (957), 68 states have call successors, (68), 6 states have call predecessors, (68), 6 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-28 02:45:06,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1093 transitions. [2024-11-28 02:45:06,533 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1093 transitions. Word has length 138 [2024-11-28 02:45:06,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:06,535 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 1093 transitions. [2024-11-28 02:45:06,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:06,535 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1093 transitions. [2024-11-28 02:45:06,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:45:06,537 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:06,540 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:06,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:45:06,541 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:06,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:06,541 INFO L85 PathProgramCache]: Analyzing trace with hash 735618990, now seen corresponding path program 1 times [2024-11-28 02:45:06,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:06,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891693840] [2024-11-28 02:45:06,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:06,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:08,962 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:45:08,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:08,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891693840] [2024-11-28 02:45:08,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891693840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:08,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:08,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:45:08,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263535379] [2024-11-28 02:45:08,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:08,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:45:08,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:08,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:45:08,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:45:08,965 INFO L87 Difference]: Start difference. First operand 749 states and 1093 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:10,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:10,902 INFO L93 Difference]: Finished difference Result 1813 states and 2636 transitions. [2024-11-28 02:45:10,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:45:10,903 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-28 02:45:10,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:10,910 INFO L225 Difference]: With dead ends: 1813 [2024-11-28 02:45:10,910 INFO L226 Difference]: Without dead ends: 1067 [2024-11-28 02:45:10,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:45:10,913 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 115 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:10,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1728 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 02:45:10,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2024-11-28 02:45:10,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 982. [2024-11-28 02:45:10,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 897 states have (on average 1.4202898550724639) internal successors, (1274), 900 states have internal predecessors, (1274), 76 states have call successors, (76), 8 states have call predecessors, (76), 8 states have return successors, (76), 73 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-28 02:45:11,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1426 transitions. [2024-11-28 02:45:11,008 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1426 transitions. Word has length 139 [2024-11-28 02:45:11,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:11,010 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1426 transitions. [2024-11-28 02:45:11,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:11,011 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1426 transitions. [2024-11-28 02:45:11,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:45:11,014 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:11,014 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:11,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:45:11,015 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:11,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:11,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1436683568, now seen corresponding path program 1 times [2024-11-28 02:45:11,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:11,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421881173] [2024-11-28 02:45:11,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:11,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:11,918 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:45:11,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:11,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421881173] [2024-11-28 02:45:11,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421881173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:11,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:11,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:45:11,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565263891] [2024-11-28 02:45:11,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:11,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:45:11,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:11,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:45:11,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:45:11,921 INFO L87 Difference]: Start difference. First operand 982 states and 1426 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:12,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:12,651 INFO L93 Difference]: Finished difference Result 2087 states and 3021 transitions. [2024-11-28 02:45:12,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:45:12,652 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-28 02:45:12,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:12,659 INFO L225 Difference]: With dead ends: 2087 [2024-11-28 02:45:12,660 INFO L226 Difference]: Without dead ends: 1108 [2024-11-28 02:45:12,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:45:12,663 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 121 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:12,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 555 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:45:12,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-11-28 02:45:12,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1103. [2024-11-28 02:45:12,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 994 states have (on average 1.408450704225352) internal successors, (1400), 999 states have internal predecessors, (1400), 96 states have call successors, (96), 12 states have call predecessors, (96), 12 states have return successors, (96), 91 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-28 02:45:12,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1592 transitions. [2024-11-28 02:45:12,744 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1592 transitions. Word has length 139 [2024-11-28 02:45:12,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:12,744 INFO L471 AbstractCegarLoop]: Abstraction has 1103 states and 1592 transitions. [2024-11-28 02:45:12,744 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:12,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1592 transitions. [2024-11-28 02:45:12,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:45:12,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:12,747 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:12,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:45:12,748 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:12,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:12,748 INFO L85 PathProgramCache]: Analyzing trace with hash -82029460, now seen corresponding path program 1 times [2024-11-28 02:45:12,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:12,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971958406] [2024-11-28 02:45:12,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:12,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:13,708 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:45:13,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:13,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971958406] [2024-11-28 02:45:13,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971958406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:13,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:13,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:45:13,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328043208] [2024-11-28 02:45:13,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:13,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:45:13,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:13,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:45:13,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:45:13,714 INFO L87 Difference]: Start difference. First operand 1103 states and 1592 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:14,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:14,507 INFO L93 Difference]: Finished difference Result 2219 states and 3193 transitions. [2024-11-28 02:45:14,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:45:14,508 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-28 02:45:14,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:14,517 INFO L225 Difference]: With dead ends: 2219 [2024-11-28 02:45:14,517 INFO L226 Difference]: Without dead ends: 1128 [2024-11-28 02:45:14,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:45:14,521 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 120 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:14,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 807 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:45:14,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2024-11-28 02:45:14,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1102. [2024-11-28 02:45:14,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 995 states have (on average 1.406030150753769) internal successors, (1399), 999 states have internal predecessors, (1399), 92 states have call successors, (92), 14 states have call predecessors, (92), 14 states have return successors, (92), 88 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-28 02:45:14,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1583 transitions. [2024-11-28 02:45:14,600 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1583 transitions. Word has length 139 [2024-11-28 02:45:14,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:14,601 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1583 transitions. [2024-11-28 02:45:14,601 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:14,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1583 transitions. [2024-11-28 02:45:14,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:45:14,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:14,605 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:14,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:45:14,606 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:14,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:14,607 INFO L85 PathProgramCache]: Analyzing trace with hash 619035118, now seen corresponding path program 1 times [2024-11-28 02:45:14,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:14,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160245119] [2024-11-28 02:45:14,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:14,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:16,456 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:45:16,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:16,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160245119] [2024-11-28 02:45:16,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160245119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:16,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:16,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:45:16,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811099547] [2024-11-28 02:45:16,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:16,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:45:16,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:16,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:45:16,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:45:16,460 INFO L87 Difference]: Start difference. First operand 1102 states and 1583 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:17,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:17,898 INFO L93 Difference]: Finished difference Result 2229 states and 3193 transitions. [2024-11-28 02:45:17,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:45:17,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-28 02:45:17,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:17,905 INFO L225 Difference]: With dead ends: 2229 [2024-11-28 02:45:17,905 INFO L226 Difference]: Without dead ends: 1130 [2024-11-28 02:45:17,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:45:17,909 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 113 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:17,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1643 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 02:45:17,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2024-11-28 02:45:17,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 912. [2024-11-28 02:45:17,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 823 states have (on average 1.4094775212636694) internal successors, (1160), 825 states have internal predecessors, (1160), 76 states have call successors, (76), 12 states have call predecessors, (76), 12 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-28 02:45:17,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1312 transitions. [2024-11-28 02:45:17,974 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1312 transitions. Word has length 139 [2024-11-28 02:45:17,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:17,975 INFO L471 AbstractCegarLoop]: Abstraction has 912 states and 1312 transitions. [2024-11-28 02:45:17,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:17,975 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1312 transitions. [2024-11-28 02:45:17,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:45:17,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:17,978 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:17,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:45:17,978 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:17,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:17,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1014010927, now seen corresponding path program 1 times [2024-11-28 02:45:17,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:17,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941964409] [2024-11-28 02:45:17,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:17,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:18,099 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:45:18,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:18,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941964409] [2024-11-28 02:45:18,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941964409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:18,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:18,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:45:18,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209711203] [2024-11-28 02:45:18,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:18,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:45:18,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:18,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:45:18,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:45:18,102 INFO L87 Difference]: Start difference. First operand 912 states and 1312 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:18,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:18,262 INFO L93 Difference]: Finished difference Result 1734 states and 2489 transitions. [2024-11-28 02:45:18,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:45:18,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-28 02:45:18,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:18,270 INFO L225 Difference]: With dead ends: 1734 [2024-11-28 02:45:18,270 INFO L226 Difference]: Without dead ends: 784 [2024-11-28 02:45:18,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:45:18,275 INFO L435 NwaCegarLoop]: 312 mSDtfsCounter, 103 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:18,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 507 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:45:18,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2024-11-28 02:45:18,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 641. [2024-11-28 02:45:18,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 580 states have (on average 1.389655172413793) internal successors, (806), 581 states have internal predecessors, (806), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 02:45:18,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 910 transitions. [2024-11-28 02:45:18,321 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 910 transitions. Word has length 139 [2024-11-28 02:45:18,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:18,321 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 910 transitions. [2024-11-28 02:45:18,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:18,322 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 910 transitions. [2024-11-28 02:45:18,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 02:45:18,324 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:18,324 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:18,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:45:18,325 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:18,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:18,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1227230246, now seen corresponding path program 1 times [2024-11-28 02:45:18,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:18,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475711542] [2024-11-28 02:45:18,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:18,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:18,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:20,533 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:45:20,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:20,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475711542] [2024-11-28 02:45:20,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475711542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:20,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:20,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:45:20,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578067809] [2024-11-28 02:45:20,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:20,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:45:20,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:20,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:45:20,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:45:20,540 INFO L87 Difference]: Start difference. First operand 641 states and 910 transitions. Second operand has 10 states, 9 states have (on average 7.0) internal successors, (63), 10 states have internal predecessors, (63), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:45:22,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:22,065 INFO L93 Difference]: Finished difference Result 1319 states and 1868 transitions. [2024-11-28 02:45:22,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 02:45:22,066 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.0) internal successors, (63), 10 states have internal predecessors, (63), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 140 [2024-11-28 02:45:22,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:22,072 INFO L225 Difference]: With dead ends: 1319 [2024-11-28 02:45:22,072 INFO L226 Difference]: Without dead ends: 917 [2024-11-28 02:45:22,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:45:22,074 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 226 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:22,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 1101 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 02:45:22,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2024-11-28 02:45:22,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 908. [2024-11-28 02:45:22,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 840 states have (on average 1.4) internal successors, (1176), 843 states have internal predecessors, (1176), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 53 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-28 02:45:22,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1288 transitions. [2024-11-28 02:45:22,146 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1288 transitions. Word has length 140 [2024-11-28 02:45:22,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:22,147 INFO L471 AbstractCegarLoop]: Abstraction has 908 states and 1288 transitions. [2024-11-28 02:45:22,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.0) internal successors, (63), 10 states have internal predecessors, (63), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:45:22,147 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1288 transitions. [2024-11-28 02:45:22,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 02:45:22,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:22,151 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:22,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:45:22,152 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:22,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:22,152 INFO L85 PathProgramCache]: Analyzing trace with hash -392576892, now seen corresponding path program 1 times [2024-11-28 02:45:22,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:22,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781333941] [2024-11-28 02:45:22,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:22,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:23,800 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:45:23,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:23,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781333941] [2024-11-28 02:45:23,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781333941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:23,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:23,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:45:23,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718799410] [2024-11-28 02:45:23,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:23,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:45:23,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:23,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:45:23,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:45:23,803 INFO L87 Difference]: Start difference. First operand 908 states and 1288 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:24,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:24,514 INFO L93 Difference]: Finished difference Result 1834 states and 2609 transitions. [2024-11-28 02:45:24,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:45:24,515 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 140 [2024-11-28 02:45:24,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:24,522 INFO L225 Difference]: With dead ends: 1834 [2024-11-28 02:45:24,522 INFO L226 Difference]: Without dead ends: 1169 [2024-11-28 02:45:24,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:45:24,525 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 108 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:24,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 530 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:45:24,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2024-11-28 02:45:24,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1075. [2024-11-28 02:45:24,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 1007 states have (on average 1.4051638530287984) internal successors, (1415), 1010 states have internal predecessors, (1415), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 53 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-28 02:45:24,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1527 transitions. [2024-11-28 02:45:24,579 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1527 transitions. Word has length 140 [2024-11-28 02:45:24,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:24,580 INFO L471 AbstractCegarLoop]: Abstraction has 1075 states and 1527 transitions. [2024-11-28 02:45:24,581 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:24,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1527 transitions. [2024-11-28 02:45:24,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 02:45:24,584 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:24,584 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:24,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 02:45:24,584 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:24,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:24,585 INFO L85 PathProgramCache]: Analyzing trace with hash 921922377, now seen corresponding path program 1 times [2024-11-28 02:45:24,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:24,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205358733] [2024-11-28 02:45:24,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:24,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:25,859 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 9 proven. 36 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-28 02:45:25,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:25,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205358733] [2024-11-28 02:45:25,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205358733] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:45:25,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914038581] [2024-11-28 02:45:25,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:25,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:25,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:25,863 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:45:25,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:45:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:26,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 02:45:26,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:45:26,365 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 81 treesize of output 80 [2024-11-28 02:45:27,332 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 142 treesize of output 118 [2024-11-28 02:45:27,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 02:45:27,835 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 31 treesize of output 15 [2024-11-28 02:45:27,938 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 31 treesize of output 15 [2024-11-28 02:45:28,040 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 31 treesize of output 15 [2024-11-28 02:45:28,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 02:45:28,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 02:45:28,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 02:45:28,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 02:45:28,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2024-11-28 02:45:28,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 70 [2024-11-28 02:45:28,468 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:45:28,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 27 treesize of output 27 [2024-11-28 02:45:28,644 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 165 proven. 36 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-28 02:45:28,645 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:45:29,552 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 9 proven. 36 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-28 02:45:29,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914038581] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:45:29,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:45:29,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 9] total 22 [2024-11-28 02:45:29,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018940119] [2024-11-28 02:45:29,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:45:29,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 02:45:29,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:29,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 02:45:29,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:45:29,556 INFO L87 Difference]: Start difference. First operand 1075 states and 1527 transitions. Second operand has 22 states, 19 states have (on average 7.842105263157895) internal successors, (149), 22 states have internal predecessors, (149), 8 states have call successors, (45), 3 states have call predecessors, (45), 6 states have return successors, (45), 5 states have call predecessors, (45), 8 states have call successors, (45) [2024-11-28 02:45:39,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:39,900 INFO L93 Difference]: Finished difference Result 2453 states and 3462 transitions. [2024-11-28 02:45:39,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 02:45:39,900 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 7.842105263157895) internal successors, (149), 22 states have internal predecessors, (149), 8 states have call successors, (45), 3 states have call predecessors, (45), 6 states have return successors, (45), 5 states have call predecessors, (45), 8 states have call successors, (45) Word has length 142 [2024-11-28 02:45:39,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:39,907 INFO L225 Difference]: With dead ends: 2453 [2024-11-28 02:45:39,907 INFO L226 Difference]: Without dead ends: 1394 [2024-11-28 02:45:39,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 279 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=312, Invalid=1248, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 02:45:39,910 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 1075 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:39,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 827 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2024-11-28 02:45:39,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2024-11-28 02:45:39,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 875. [2024-11-28 02:45:39,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 815 states have (on average 1.396319018404908) internal successors, (1138), 815 states have internal predecessors, (1138), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 02:45:39,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1234 transitions. [2024-11-28 02:45:39,960 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1234 transitions. Word has length 142 [2024-11-28 02:45:39,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:39,961 INFO L471 AbstractCegarLoop]: Abstraction has 875 states and 1234 transitions. [2024-11-28 02:45:39,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 7.842105263157895) internal successors, (149), 22 states have internal predecessors, (149), 8 states have call successors, (45), 3 states have call predecessors, (45), 6 states have return successors, (45), 5 states have call predecessors, (45), 8 states have call successors, (45) [2024-11-28 02:45:39,961 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1234 transitions. [2024-11-28 02:45:39,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 02:45:39,963 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:39,963 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:39,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 02:45:40,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 02:45:40,168 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:40,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:40,169 INFO L85 PathProgramCache]: Analyzing trace with hash -2106000864, now seen corresponding path program 1 times [2024-11-28 02:45:40,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:40,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516977614] [2024-11-28 02:45:40,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:40,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:40,453 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:45:40,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:40,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516977614] [2024-11-28 02:45:40,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516977614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:40,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:40,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:45:40,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807215381] [2024-11-28 02:45:40,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:40,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:45:40,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:40,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:45:40,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:45:40,456 INFO L87 Difference]: Start difference. First operand 875 states and 1234 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:40,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:40,967 INFO L93 Difference]: Finished difference Result 2282 states and 3216 transitions. [2024-11-28 02:45:40,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:45:40,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 142 [2024-11-28 02:45:40,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:40,975 INFO L225 Difference]: With dead ends: 2282 [2024-11-28 02:45:40,975 INFO L226 Difference]: Without dead ends: 1410 [2024-11-28 02:45:40,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:45:40,977 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 187 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:40,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 488 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:45:40,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-11-28 02:45:41,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 881. [2024-11-28 02:45:41,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 821 states have (on average 1.3934226552984166) internal successors, (1144), 821 states have internal predecessors, (1144), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 02:45:41,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1240 transitions. [2024-11-28 02:45:41,027 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1240 transitions. Word has length 142 [2024-11-28 02:45:41,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:41,028 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1240 transitions. [2024-11-28 02:45:41,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:45:41,028 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1240 transitions. [2024-11-28 02:45:41,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 02:45:41,030 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:41,030 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:41,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 02:45:41,031 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:41,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:41,031 INFO L85 PathProgramCache]: Analyzing trace with hash 2054952926, now seen corresponding path program 1 times [2024-11-28 02:45:41,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:41,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151601826] [2024-11-28 02:45:41,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:41,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:42,089 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:45:42,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:42,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151601826] [2024-11-28 02:45:42,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151601826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:42,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:42,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:45:42,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730822199] [2024-11-28 02:45:42,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:42,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:45:42,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:42,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:45:42,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:45:42,094 INFO L87 Difference]: Start difference. First operand 881 states and 1240 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:45:43,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:43,169 INFO L93 Difference]: Finished difference Result 1915 states and 2679 transitions. [2024-11-28 02:45:43,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:45:43,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 142 [2024-11-28 02:45:43,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:43,175 INFO L225 Difference]: With dead ends: 1915 [2024-11-28 02:45:43,175 INFO L226 Difference]: Without dead ends: 1037 [2024-11-28 02:45:43,177 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:45:43,177 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 153 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:43,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 874 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:45:43,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-11-28 02:45:43,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 943. [2024-11-28 02:45:43,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 872 states have (on average 1.3876146788990826) internal successors, (1210), 873 states have internal predecessors, (1210), 56 states have call successors, (56), 14 states have call predecessors, (56), 14 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-28 02:45:43,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1322 transitions. [2024-11-28 02:45:43,234 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1322 transitions. Word has length 142 [2024-11-28 02:45:43,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:43,234 INFO L471 AbstractCegarLoop]: Abstraction has 943 states and 1322 transitions. [2024-11-28 02:45:43,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:45:43,235 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1322 transitions. [2024-11-28 02:45:43,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 02:45:43,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:43,239 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:43,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 02:45:43,239 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:43,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:43,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1938950114, now seen corresponding path program 1 times [2024-11-28 02:45:43,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:43,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812094553] [2024-11-28 02:45:43,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:43,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:44,459 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:45:44,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:44,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812094553] [2024-11-28 02:45:44,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812094553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:44,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:44,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:45:44,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235597990] [2024-11-28 02:45:44,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:44,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:45:44,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:44,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:45:44,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:45:44,462 INFO L87 Difference]: Start difference. First operand 943 states and 1322 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:45:45,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:45,147 INFO L93 Difference]: Finished difference Result 1963 states and 2746 transitions. [2024-11-28 02:45:45,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:45:45,148 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2024-11-28 02:45:45,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:45,152 INFO L225 Difference]: With dead ends: 1963 [2024-11-28 02:45:45,152 INFO L226 Difference]: Without dead ends: 1023 [2024-11-28 02:45:45,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:45:45,155 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 96 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:45,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 581 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:45:45,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2024-11-28 02:45:45,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 935. [2024-11-28 02:45:45,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 864 states have (on average 1.3831018518518519) internal successors, (1195), 865 states have internal predecessors, (1195), 56 states have call successors, (56), 14 states have call predecessors, (56), 14 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-28 02:45:45,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1307 transitions. [2024-11-28 02:45:45,204 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1307 transitions. Word has length 143 [2024-11-28 02:45:45,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:45,204 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1307 transitions. [2024-11-28 02:45:45,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:45:45,204 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1307 transitions. [2024-11-28 02:45:45,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 02:45:45,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:45,207 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:45,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 02:45:45,207 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:45,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:45,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1104296760, now seen corresponding path program 1 times [2024-11-28 02:45:45,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:45,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119248864] [2024-11-28 02:45:45,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:45,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:45:45,283 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:45:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:45:45,419 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:45:45,420 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:45:45,421 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:45:45,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 02:45:45,427 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] [2024-11-28 02:45:45,547 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:45:45,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:45:45 BoogieIcfgContainer [2024-11-28 02:45:45,552 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:45:45,553 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:45:45,553 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:45:45,554 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:45:45,555 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:44:47" (3/4) ... [2024-11-28 02:45:45,557 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:45:45,558 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:45:45,558 INFO L158 Benchmark]: Toolchain (without parser) took 60215.75ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 119.0MB in the beginning and 149.1MB in the end (delta: -30.1MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2024-11-28 02:45:45,559 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 142.6MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:45:45,559 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.09ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 101.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:45:45,559 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.13ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 97.3MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:45:45,559 INFO L158 Benchmark]: Boogie Preprocessor took 81.87ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 93.4MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:45:45,560 INFO L158 Benchmark]: RCFGBuilder took 1465.44ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 108.0MB in the end (delta: -14.6MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2024-11-28 02:45:45,560 INFO L158 Benchmark]: TraceAbstraction took 58073.94ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 107.5MB in the beginning and 149.2MB in the end (delta: -41.8MB). Peak memory consumption was 381.0MB. Max. memory is 16.1GB. [2024-11-28 02:45:45,560 INFO L158 Benchmark]: Witness Printer took 4.38ms. Allocated memory is still 201.3MB. Free memory was 149.2MB in the beginning and 149.1MB in the end (delta: 138.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:45:45,565 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 142.6MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.09ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 101.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.13ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 97.3MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 81.87ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 93.4MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1465.44ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 108.0MB in the end (delta: -14.6MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. * TraceAbstraction took 58073.94ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 107.5MB in the beginning and 149.2MB in the end (delta: -41.8MB). Peak memory consumption was 381.0MB. Max. memory is 16.1GB. * Witness Printer took 4.38ms. Allocated memory is still 201.3MB. Free memory was 149.2MB in the beginning and 149.1MB in the end (delta: 138.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 51, overapproximation of someBinaryDOUBLEComparisonOperation at line 105, overapproximation of someBinaryDOUBLEComparisonOperation at line 111, overapproximation of someBinaryDOUBLEComparisonOperation at line 109, overapproximation of someBinaryDOUBLEComparisonOperation at line 105, overapproximation of someBinaryDOUBLEComparisonOperation at line 107, overapproximation of someBinaryDOUBLEComparisonOperation at line 107, overapproximation of someBinaryDOUBLEComparisonOperation at line 109, overapproximation of someBinaryDOUBLEComparisonOperation at line 111, overapproximation of someBinaryDOUBLEComparisonOperation at line 117. Possible FailurePath: [L38] unsigned char isInitial = 0; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 0, 0, 0, -64, -5, 500, -5, -100, 1, 127.5, 15.75, -0.5, 5.25, 8.5 }; [L55] unsigned char last_1_WrapperStruct00_var_1_11 = 1; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_11=1] [L121] isInitial = 1 [L122] FCALL initially() [L124] CALL updateLastVariables() [L114] EXPR WrapperStruct00.var_1_11 [L114] last_1_WrapperStruct00_var_1_11 = WrapperStruct00.var_1_11 [L124] RET updateLastVariables() [L125] 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_11=1] [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_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L87] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L88] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L88] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L88] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [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_11=1] [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_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L90] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L91] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L92] WrapperStruct00.var_1_7 = __VERIFIER_nondet_long() [L93] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= -1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L93] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= -1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L94] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L94] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L95] WrapperStruct00.var_1_8 = __VERIFIER_nondet_long() [L96] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= -1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= -1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L97] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L97] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L98] WrapperStruct00.var_1_9 = __VERIFIER_nondet_long() [L99] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= -536870912) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L99] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= -536870912) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L100] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L100] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 536870912) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L100] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 536870912) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L101] WrapperStruct00.var_1_10 = __VERIFIER_nondet_long() [L102] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= -536870911) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L102] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= -536870911) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L103] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 536870911) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L103] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 536870911) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L104] WrapperStruct00.var_1_13 = __VERIFIER_nondet_double() [L105] EXPR WrapperStruct00.var_1_13 [L105] EXPR WrapperStruct00.var_1_13 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F [L105] EXPR WrapperStruct00.var_1_13 [L105] EXPR WrapperStruct00.var_1_13 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L105] EXPR (WrapperStruct00.var_1_13 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L105] CALL assume_abort_if_not((WrapperStruct00.var_1_13 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L105] RET assume_abort_if_not((WrapperStruct00.var_1_13 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L106] WrapperStruct00.var_1_14 = __VERIFIER_nondet_double() [L107] EXPR WrapperStruct00.var_1_14 [L107] EXPR WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F [L107] EXPR WrapperStruct00.var_1_14 [L107] EXPR WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L107] EXPR (WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L107] CALL assume_abort_if_not((WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L107] RET assume_abort_if_not((WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L108] WrapperStruct00.var_1_15 = __VERIFIER_nondet_double() [L109] EXPR WrapperStruct00.var_1_15 [L109] EXPR WrapperStruct00.var_1_15 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F [L109] EXPR WrapperStruct00.var_1_15 [L109] EXPR WrapperStruct00.var_1_15 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L109] EXPR (WrapperStruct00.var_1_15 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F) || (WrapperStruct00.var_1_15 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_15 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L109] CALL assume_abort_if_not((WrapperStruct00.var_1_15 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F) || (WrapperStruct00.var_1_15 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_15 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L109] RET assume_abort_if_not((WrapperStruct00.var_1_15 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F) || (WrapperStruct00.var_1_15 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_15 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L110] WrapperStruct00.var_1_16 = __VERIFIER_nondet_double() [L111] EXPR WrapperStruct00.var_1_16 [L111] EXPR WrapperStruct00.var_1_16 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_16 <= -1.0e-20F [L111] EXPR WrapperStruct00.var_1_16 [L111] EXPR WrapperStruct00.var_1_16 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_16 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L111] EXPR (WrapperStruct00.var_1_16 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_16 <= -1.0e-20F) || (WrapperStruct00.var_1_16 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_16 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L111] CALL assume_abort_if_not((WrapperStruct00.var_1_16 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_16 <= -1.0e-20F) || (WrapperStruct00.var_1_16 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_16 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L111] RET assume_abort_if_not((WrapperStruct00.var_1_16 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_16 <= -1.0e-20F) || (WrapperStruct00.var_1_16 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_16 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L125] RET updateVariables() [L126] CALL step() [L59] unsigned char stepLocal_0 = last_1_WrapperStruct00_var_1_11; VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1, stepLocal_0=1] [L60] COND FALSE !(! last_1_WrapperStruct00_var_1_11) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1, stepLocal_0=1] [L65] EXPR WrapperStruct00.var_1_7 [L65] signed long int stepLocal_2 = WrapperStruct00.var_1_7; [L66] EXPR WrapperStruct00.var_1_10 [L66] signed long int stepLocal_1 = WrapperStruct00.var_1_10; [L67] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1, stepLocal_0=1, stepLocal_1=536870911, stepLocal_2=1073741822] [L67] COND FALSE !(WrapperStruct00.var_1_8 <= stepLocal_2) [L74] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1, stepLocal_0=1, stepLocal_1=536870911] [L74] COND FALSE !(! WrapperStruct00.var_1_11) [L77] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1, stepLocal_0=1, stepLocal_1=536870911] [L77] EXPR ((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9) [L77] EXPR WrapperStruct00.var_1_9 [L77] EXPR ((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1, stepLocal_0=1, stepLocal_1=536870911] [L77] EXPR WrapperStruct00.var_1_10 [L77] EXPR WrapperStruct00.var_1_7 [L77] WrapperStruct00.var_1_6 = ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7) [L79] WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1, stepLocal_0=1, stepLocal_1=536870911] [L79] COND FALSE !(WrapperStruct00.var_1_4) [L82] EXPR WrapperStruct00.var_1_15 [L82] WrapperStruct00.var_1_12 = WrapperStruct00.var_1_15 [L126] RET step() [L127] CALL, EXPR property() [L117] EXPR (! last_1_WrapperStruct00_var_1_11) ? ((last_1_WrapperStruct00_var_1_11 && last_1_WrapperStruct00_var_1_11) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5))) : 1) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR ((! last_1_WrapperStruct00_var_1_11) ? ((last_1_WrapperStruct00_var_1_11 && last_1_WrapperStruct00_var_1_11) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5))) : 1) : 1) && ((! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7)))) [L117] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR (! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7))) [L117] EXPR WrapperStruct00.var_1_6 [L117] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR ((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9) [L117] EXPR WrapperStruct00.var_1_9 [L117] EXPR ((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR WrapperStruct00.var_1_10 [L117] EXPR WrapperStruct00.var_1_7 [L117] EXPR (! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR ((! last_1_WrapperStruct00_var_1_11) ? ((last_1_WrapperStruct00_var_1_11 && last_1_WrapperStruct00_var_1_11) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5))) : 1) : 1) && ((! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR (((! last_1_WrapperStruct00_var_1_11) ? ((last_1_WrapperStruct00_var_1_11 && last_1_WrapperStruct00_var_1_11) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5))) : 1) : 1) && ((! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7))))) && ((WrapperStruct00.var_1_8 <= WrapperStruct00.var_1_7) ? ((WrapperStruct00.var_1_10 >= WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_11 == ((unsigned char) (! WrapperStruct00.var_1_5))) : (WrapperStruct00.var_1_11 == ((unsigned char) (WrapperStruct00.var_1_1 || (! WrapperStruct00.var_1_5))))) : 1) [L117] EXPR WrapperStruct00.var_1_8 [L117] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR (WrapperStruct00.var_1_8 <= WrapperStruct00.var_1_7) ? ((WrapperStruct00.var_1_10 >= WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_11 == ((unsigned char) (! WrapperStruct00.var_1_5))) : (WrapperStruct00.var_1_11 == ((unsigned char) (WrapperStruct00.var_1_1 || (! WrapperStruct00.var_1_5))))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR (((! last_1_WrapperStruct00_var_1_11) ? ((last_1_WrapperStruct00_var_1_11 && last_1_WrapperStruct00_var_1_11) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5))) : 1) : 1) && ((! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7))))) && ((WrapperStruct00.var_1_8 <= WrapperStruct00.var_1_7) ? ((WrapperStruct00.var_1_10 >= WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_11 == ((unsigned char) (! WrapperStruct00.var_1_5))) : (WrapperStruct00.var_1_11 == ((unsigned char) (WrapperStruct00.var_1_1 || (! WrapperStruct00.var_1_5))))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR ((((! last_1_WrapperStruct00_var_1_11) ? ((last_1_WrapperStruct00_var_1_11 && last_1_WrapperStruct00_var_1_11) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5))) : 1) : 1) && ((! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7))))) && ((WrapperStruct00.var_1_8 <= WrapperStruct00.var_1_7) ? ((WrapperStruct00.var_1_10 >= WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_11 == ((unsigned char) (! WrapperStruct00.var_1_5))) : (WrapperStruct00.var_1_11 == ((unsigned char) (WrapperStruct00.var_1_1 || (! WrapperStruct00.var_1_5))))) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_12 == ((double) (((((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) < ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))))))) ? ((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) : ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16)))))))))) : (WrapperStruct00.var_1_12 == ((double) WrapperStruct00.var_1_15))) [L117] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_12 == ((double) (((((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) < ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))))))) ? ((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) : ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16)))))))))) : (WrapperStruct00.var_1_12 == ((double) WrapperStruct00.var_1_15)) [L117] EXPR WrapperStruct00.var_1_12 [L117] EXPR WrapperStruct00.var_1_15 [L117] EXPR WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_12 == ((double) (((((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) < ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))))))) ? ((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) : ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16)))))))))) : (WrapperStruct00.var_1_12 == ((double) WrapperStruct00.var_1_15)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR ((((! last_1_WrapperStruct00_var_1_11) ? ((last_1_WrapperStruct00_var_1_11 && last_1_WrapperStruct00_var_1_11) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5))) : 1) : 1) && ((! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7))))) && ((WrapperStruct00.var_1_8 <= WrapperStruct00.var_1_7) ? ((WrapperStruct00.var_1_10 >= WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_11 == ((unsigned char) (! WrapperStruct00.var_1_5))) : (WrapperStruct00.var_1_11 == ((unsigned char) (WrapperStruct00.var_1_1 || (! WrapperStruct00.var_1_5))))) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_12 == ((double) (((((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) < ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))))))) ? ((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) : ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16)))))))))) : (WrapperStruct00.var_1_12 == ((double) WrapperStruct00.var_1_15))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117-L118] return ((((! last_1_WrapperStruct00_var_1_11) ? ((last_1_WrapperStruct00_var_1_11 && last_1_WrapperStruct00_var_1_11) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5))) : 1) : 1) && ((! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7))))) && ((WrapperStruct00.var_1_8 <= WrapperStruct00.var_1_7) ? ((WrapperStruct00.var_1_10 >= WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_11 == ((unsigned char) (! WrapperStruct00.var_1_5))) : (WrapperStruct00.var_1_11 == ((unsigned char) (WrapperStruct00.var_1_1 || (! WrapperStruct00.var_1_5))))) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_12 == ((double) (((((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) < ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))))))) ? ((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) : ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16)))))))))) : (WrapperStruct00.var_1_12 == ((double) WrapperStruct00.var_1_15))) ; [L127] RET, EXPR property() [L127] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 149 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 57.9s, OverallIterations: 21, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 24.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4034 SdHoareTripleChecker+Valid, 21.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4028 mSDsluCounter, 15371 SdHoareTripleChecker+Invalid, 19.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11277 mSDsCounter, 347 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9102 IncrementalHoareTripleChecker+Invalid, 9449 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 347 mSolverCounterUnsat, 4094 mSDtfsCounter, 9102 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1134 GetRequests, 971 SyntacticMatches, 3 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1103occurred in iteration=11, InterpolantAutomatonStates: 143, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 20 MinimizatonAttempts, 1896 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 26.6s InterpolantComputationTime, 3600 NumberOfCodeBlocks, 3600 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 3573 ConstructedInterpolants, 0 QuantifiedInterpolants, 10311 SizeOfPredicates, 10 NumberOfNonLiveVariables, 2458 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 26 InterpolantComputations, 19 PerfectInterpolantSequences, 12201/12480 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 02:45:45,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16590e9bc433910605f5e4d8182c46930e3c9f2a76ed7e606268a246ee561bc1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:45:48,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:45:48,974 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 02:45:48,987 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:45:48,988 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:45:49,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:45:49,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:45:49,036 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:45:49,037 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:45:49,038 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:45:49,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:45:49,038 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:45:49,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:45:49,040 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:45:49,040 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:45:49,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:45:49,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:45:49,041 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:45:49,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:45:49,042 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:45:49,042 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:45:49,042 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:45:49,042 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:45:49,042 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:45:49,043 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:45:49,043 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:45:49,043 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:45:49,043 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:45:49,043 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:45:49,043 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:45:49,043 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:45:49,044 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:45:49,044 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:45:49,044 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:45:49,045 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:45:49,045 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:45:49,045 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:45:49,045 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:45:49,046 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:45:49,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:45:49,046 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:45:49,046 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:45:49,046 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:45:49,046 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:45:49,046 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:45:49,046 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:45:49,046 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:45:49,047 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:45:49,047 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:45:49,047 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:45:49,047 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_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16590e9bc433910605f5e4d8182c46930e3c9f2a76ed7e606268a246ee561bc1 [2024-11-28 02:45:49,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:45:49,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:45:49,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:45:49,469 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:45:49,470 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:45:49,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i [2024-11-28 02:45:52,906 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/data/5e0ad8f9a/3c90b73116f240aba34fdb6674e4de45/FLAGd5e2f18d1 [2024-11-28 02:45:53,219 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:45:53,222 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i [2024-11-28 02:45:53,236 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/data/5e0ad8f9a/3c90b73116f240aba34fdb6674e4de45/FLAGd5e2f18d1 [2024-11-28 02:45:53,490 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/data/5e0ad8f9a/3c90b73116f240aba34fdb6674e4de45 [2024-11-28 02:45:53,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:45:53,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:45:53,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:45:53,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:45:53,507 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:45:53,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:45:53" (1/1) ... [2024-11-28 02:45:53,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@416b8c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:53, skipping insertion in model container [2024-11-28 02:45:53,509 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:45:53" (1/1) ... [2024-11-28 02:45:53,541 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:45:53,738 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_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i[915,928] [2024-11-28 02:45:53,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:45:53,852 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:45:53,870 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_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i[915,928] [2024-11-28 02:45:54,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:45:54,050 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:45:54,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:54 WrapperNode [2024-11-28 02:45:54,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:45:54,053 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:45:54,055 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:45:54,056 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:45:54,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:54" (1/1) ... [2024-11-28 02:45:54,101 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:54" (1/1) ... [2024-11-28 02:45:54,176 INFO L138 Inliner]: procedures = 34, calls = 179, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 621 [2024-11-28 02:45:54,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:45:54,180 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:45:54,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:45:54,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:45:54,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:54" (1/1) ... [2024-11-28 02:45:54,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:54" (1/1) ... [2024-11-28 02:45:54,200 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:54" (1/1) ... [2024-11-28 02:45:54,243 INFO L175 MemorySlicer]: Split 152 memory accesses to 2 slices as follows [2, 150]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 32 writes are split as follows [0, 32]. [2024-11-28 02:45:54,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:54" (1/1) ... [2024-11-28 02:45:54,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:54" (1/1) ... [2024-11-28 02:45:54,278 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:54" (1/1) ... [2024-11-28 02:45:54,279 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:54" (1/1) ... [2024-11-28 02:45:54,286 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:54" (1/1) ... [2024-11-28 02:45:54,289 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:54" (1/1) ... [2024-11-28 02:45:54,292 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:54" (1/1) ... [2024-11-28 02:45:54,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:45:54,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:45:54,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:45:54,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:45:54,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:54" (1/1) ... [2024-11-28 02:45:54,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:45:54,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:54,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:45:54,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:45:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:45:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-28 02:45:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-28 02:45:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#0 [2024-11-28 02:45:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#1 [2024-11-28 02:45:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-28 02:45:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-28 02:45:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 02:45:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 02:45:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:45:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 02:45:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 02:45:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 02:45:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-28 02:45:54,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-28 02:45:54,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-28 02:45:54,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-28 02:45:54,380 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:45:54,380 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:45:54,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:45:54,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:45:54,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-28 02:45:54,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-28 02:45:54,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 02:45:54,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 02:45:54,633 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:45:54,635 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:45:58,029 INFO L? ?]: Removed 192 outVars from TransFormulas that were not future-live. [2024-11-28 02:45:58,029 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:45:58,042 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:45:58,042 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:45:58,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:45:58 BoogieIcfgContainer [2024-11-28 02:45:58,042 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:45:58,044 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:45:58,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:45:58,050 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:45:58,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:45:53" (1/3) ... [2024-11-28 02:45:58,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24dfc0ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:45:58, skipping insertion in model container [2024-11-28 02:45:58,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:54" (2/3) ... [2024-11-28 02:45:58,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24dfc0ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:45:58, skipping insertion in model container [2024-11-28 02:45:58,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:45:58" (3/3) ... [2024-11-28 02:45:58,052 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-3.i [2024-11-28 02:45:58,067 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:45:58,068 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-3.i that has 2 procedures, 149 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:45:58,123 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:45:58,135 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;@1f793ddf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:45:58,135 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:45:58,139 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 130 states have (on average 1.4615384615384615) internal successors, (190), 131 states have internal predecessors, (190), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 02:45:58,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 02:45:58,159 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:58,160 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:58,160 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:58,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:58,167 INFO L85 PathProgramCache]: Analyzing trace with hash -962361363, now seen corresponding path program 1 times [2024-11-28 02:45:58,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:45:58,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853697061] [2024-11-28 02:45:58,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:58,182 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:45:58,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:45:58,185 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:45:58,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-28 02:45:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:58,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:45:58,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:45:58,649 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-28 02:45:58,649 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:45:58,650 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:45:58,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853697061] [2024-11-28 02:45:58,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [853697061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:58,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:58,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:45:58,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590628827] [2024-11-28 02:45:58,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:58,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:45:58,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:45:58,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:45:58,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:45:58,683 INFO L87 Difference]: Start difference. First operand has 149 states, 130 states have (on average 1.4615384615384615) internal successors, (190), 131 states have internal predecessors, (190), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:45:58,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:58,721 INFO L93 Difference]: Finished difference Result 291 states and 454 transitions. [2024-11-28 02:45:58,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:45:58,726 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2024-11-28 02:45:58,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:58,735 INFO L225 Difference]: With dead ends: 291 [2024-11-28 02:45:58,736 INFO L226 Difference]: Without dead ends: 145 [2024-11-28 02:45:58,741 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:45:58,746 INFO L435 NwaCegarLoop]: 215 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, 215 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:58,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:45:58,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-28 02:45:58,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-11-28 02:45:58,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 127 states have (on average 1.4409448818897639) internal successors, (183), 127 states have internal predecessors, (183), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 02:45:58,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 215 transitions. [2024-11-28 02:45:58,817 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 215 transitions. Word has length 133 [2024-11-28 02:45:58,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:58,817 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 215 transitions. [2024-11-28 02:45:58,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:45:58,818 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 215 transitions. [2024-11-28 02:45:58,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 02:45:58,821 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:58,821 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:58,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-28 02:45:59,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:45:59,025 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:59,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:59,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1607444309, now seen corresponding path program 1 times [2024-11-28 02:45:59,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:45:59,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166091240] [2024-11-28 02:45:59,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:59,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:45:59,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:45:59,033 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:45:59,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-28 02:45:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:59,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:45:59,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:45:59,525 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-28 02:45:59,533 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:45:59,533 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:45:59,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166091240] [2024-11-28 02:45:59,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166091240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:59,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:59,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:45:59,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468810911] [2024-11-28 02:45:59,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:59,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:45:59,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:45:59,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:45:59,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:45:59,536 INFO L87 Difference]: Start difference. First operand 145 states and 215 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:45:59,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:59,678 INFO L93 Difference]: Finished difference Result 289 states and 430 transitions. [2024-11-28 02:45:59,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:45:59,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2024-11-28 02:45:59,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:59,685 INFO L225 Difference]: With dead ends: 289 [2024-11-28 02:45:59,687 INFO L226 Difference]: Without dead ends: 147 [2024-11-28 02:45:59,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:45:59,690 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:59,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 628 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:45:59,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-28 02:45:59,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-28 02:45:59,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 129 states have (on average 1.434108527131783) internal successors, (185), 129 states have internal predecessors, (185), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 02:45:59,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 217 transitions. [2024-11-28 02:45:59,713 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 217 transitions. Word has length 133 [2024-11-28 02:45:59,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:59,715 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 217 transitions. [2024-11-28 02:45:59,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 02:45:59,715 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 217 transitions. [2024-11-28 02:45:59,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 02:45:59,718 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:59,718 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:59,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-28 02:45:59,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:45:59,919 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:59,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:59,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1658163689, now seen corresponding path program 1 times [2024-11-28 02:45:59,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:45:59,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580479324] [2024-11-28 02:45:59,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:59,920 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:45:59,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:45:59,923 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:45:59,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-28 02:46:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:46:00,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:46:00,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:46:00,445 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:46:00,445 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:46:00,445 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:46:00,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1580479324] [2024-11-28 02:46:00,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1580479324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:46:00,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:46:00,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:46:00,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76742681] [2024-11-28 02:46:00,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:46:00,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:46:00,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:46:00,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:46:00,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:46:00,447 INFO L87 Difference]: Start difference. First operand 147 states and 217 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:46:00,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:46:00,498 INFO L93 Difference]: Finished difference Result 293 states and 434 transitions. [2024-11-28 02:46:00,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:46:00,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 133 [2024-11-28 02:46:00,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:46:00,501 INFO L225 Difference]: With dead ends: 293 [2024-11-28 02:46:00,501 INFO L226 Difference]: Without dead ends: 149 [2024-11-28 02:46:00,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:46:00,503 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:46:00,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 628 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:46:00,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-28 02:46:00,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-11-28 02:46:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 131 states have (on average 1.4274809160305344) internal successors, (187), 131 states have internal predecessors, (187), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 02:46:00,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 219 transitions. [2024-11-28 02:46:00,515 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 219 transitions. Word has length 133 [2024-11-28 02:46:00,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:46:00,516 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 219 transitions. [2024-11-28 02:46:00,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:46:00,517 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 219 transitions. [2024-11-28 02:46:00,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 02:46:00,519 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:46:00,519 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:46:00,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-28 02:46:00,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:46:00,724 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:46:00,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:46:00,725 INFO L85 PathProgramCache]: Analyzing trace with hash 565461865, now seen corresponding path program 1 times [2024-11-28 02:46:00,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:46:00,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569686558] [2024-11-28 02:46:00,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:46:00,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:46:00,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:46:00,730 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:46:00,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-28 02:46:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:46:01,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:46:01,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:46:01,257 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:46:01,257 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:46:01,257 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:46:01,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569686558] [2024-11-28 02:46:01,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569686558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:46:01,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:46:01,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:46:01,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548229493] [2024-11-28 02:46:01,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:46:01,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:46:01,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:46:01,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:46:01,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:46:01,261 INFO L87 Difference]: Start difference. First operand 149 states and 219 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:46:01,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:46:01,317 INFO L93 Difference]: Finished difference Result 372 states and 550 transitions. [2024-11-28 02:46:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:46:01,318 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 135 [2024-11-28 02:46:01,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:46:01,320 INFO L225 Difference]: With dead ends: 372 [2024-11-28 02:46:01,320 INFO L226 Difference]: Without dead ends: 226 [2024-11-28 02:46:01,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:46:01,322 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 114 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:46:01,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 412 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:46:01,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-28 02:46:01,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 181. [2024-11-28 02:46:01,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 163 states have (on average 1.4478527607361964) internal successors, (236), 163 states have internal predecessors, (236), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 02:46:01,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 268 transitions. [2024-11-28 02:46:01,339 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 268 transitions. Word has length 135 [2024-11-28 02:46:01,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:46:01,340 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 268 transitions. [2024-11-28 02:46:01,340 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:46:01,341 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 268 transitions. [2024-11-28 02:46:01,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 02:46:01,344 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:46:01,344 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:46:01,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-28 02:46:01,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:46:01,548 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:46:01,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:46:01,549 INFO L85 PathProgramCache]: Analyzing trace with hash -612419662, now seen corresponding path program 1 times [2024-11-28 02:46:01,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:46:01,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320881909] [2024-11-28 02:46:01,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:46:01,550 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:46:01,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:46:01,552 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:46:01,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-28 02:46:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:46:02,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-28 02:46:02,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:46:02,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 02:46:02,561 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 38 treesize of output 16 [2024-11-28 02:46:03,358 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:46:03,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 31 [2024-11-28 02:46:03,619 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:46:03,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 31 [2024-11-28 02:46:03,875 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:46:03,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 31 [2024-11-28 02:46:04,081 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:46:04,082 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 51 [2024-11-28 02:46:08,653 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:46:08,654 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 87 treesize of output 57 [2024-11-28 02:46:09,066 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:46:09,067 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 87 treesize of output 57 [2024-11-28 02:46:10,049 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:46:10,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 66 [2024-11-28 02:46:10,759 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:46:10,760 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 118 treesize of output 97 [2024-11-28 02:46:15,780 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 304 proven. 96 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-28 02:46:15,780 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:46:16,245 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:46:16,246 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:46:16,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320881909] [2024-11-28 02:46:16,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320881909] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:46:16,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:46:16,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [26] total 28 [2024-11-28 02:46:16,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862281859] [2024-11-28 02:46:16,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:46:16,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:46:16,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:46:16,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:46:16,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=635, Unknown=2, NotChecked=0, Total=756 [2024-11-28 02:46:16,260 INFO L87 Difference]: Start difference. First operand 181 states and 268 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:46:21,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:46:21,452 INFO L93 Difference]: Finished difference Result 471 states and 696 transitions. [2024-11-28 02:46:21,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:46:21,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 135 [2024-11-28 02:46:21,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:46:21,456 INFO L225 Difference]: With dead ends: 471 [2024-11-28 02:46:21,456 INFO L226 Difference]: Without dead ends: 293 [2024-11-28 02:46:21,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=131, Invalid=797, Unknown=2, NotChecked=0, Total=930 [2024-11-28 02:46:21,459 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 115 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:46:21,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 772 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-28 02:46:21,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-28 02:46:21,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 290. [2024-11-28 02:46:21,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 267 states have (on average 1.453183520599251) internal successors, (388), 268 states have internal predecessors, (388), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 02:46:21,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 428 transitions. [2024-11-28 02:46:21,483 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 428 transitions. Word has length 135 [2024-11-28 02:46:21,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:46:21,484 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 428 transitions. [2024-11-28 02:46:21,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:46:21,485 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 428 transitions. [2024-11-28 02:46:21,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 02:46:21,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:46:21,488 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:46:21,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-28 02:46:21,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:46:21,692 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:46:21,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:46:21,693 INFO L85 PathProgramCache]: Analyzing trace with hash -262788130, now seen corresponding path program 1 times [2024-11-28 02:46:21,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:46:21,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542844185] [2024-11-28 02:46:21,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:46:21,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:46:21,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:46:21,695 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:46:21,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-28 02:46:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:46:22,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:46:22,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:46:22,106 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:46:22,106 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:46:22,106 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:46:22,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1542844185] [2024-11-28 02:46:22,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1542844185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:46:22,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:46:22,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:46:22,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328626374] [2024-11-28 02:46:22,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:46:22,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:46:22,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:46:22,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:46:22,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:46:22,109 INFO L87 Difference]: Start difference. First operand 290 states and 428 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:46:22,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:46:22,189 INFO L93 Difference]: Finished difference Result 583 states and 861 transitions. [2024-11-28 02:46:22,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:46:22,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 136 [2024-11-28 02:46:22,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:46:22,194 INFO L225 Difference]: With dead ends: 583 [2024-11-28 02:46:22,194 INFO L226 Difference]: Without dead ends: 296 [2024-11-28 02:46:22,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:46:22,196 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:46:22,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 833 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:46:22,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-28 02:46:22,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 292. [2024-11-28 02:46:22,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 269 states have (on average 1.449814126394052) internal successors, (390), 270 states have internal predecessors, (390), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 02:46:22,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 430 transitions. [2024-11-28 02:46:22,221 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 430 transitions. Word has length 136 [2024-11-28 02:46:22,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:46:22,221 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 430 transitions. [2024-11-28 02:46:22,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:46:22,222 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 430 transitions. [2024-11-28 02:46:22,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 02:46:22,224 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:46:22,225 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:46:22,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-28 02:46:22,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:46:22,425 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:46:22,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:46:22,426 INFO L85 PathProgramCache]: Analyzing trace with hash 130892061, now seen corresponding path program 1 times [2024-11-28 02:46:22,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:46:22,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949731827] [2024-11-28 02:46:22,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:46:22,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:46:22,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:46:22,431 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:46:22,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-28 02:46:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:46:22,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:46:22,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:46:22,861 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:46:22,861 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:46:22,861 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:46:22,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949731827] [2024-11-28 02:46:22,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949731827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:46:22,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:46:22,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:46:22,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903876426] [2024-11-28 02:46:22,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:46:22,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:46:22,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:46:22,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:46:22,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:46:22,864 INFO L87 Difference]: Start difference. First operand 292 states and 430 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:46:22,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:46:22,931 INFO L93 Difference]: Finished difference Result 587 states and 865 transitions. [2024-11-28 02:46:22,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:46:22,931 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-28 02:46:22,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:46:22,934 INFO L225 Difference]: With dead ends: 587 [2024-11-28 02:46:22,934 INFO L226 Difference]: Without dead ends: 298 [2024-11-28 02:46:22,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:46:22,936 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:46:22,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 832 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:46:22,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-28 02:46:22,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2024-11-28 02:46:22,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 275 states have (on average 1.44) internal successors, (396), 276 states have internal predecessors, (396), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 02:46:22,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 436 transitions. [2024-11-28 02:46:22,954 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 436 transitions. Word has length 137 [2024-11-28 02:46:22,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:46:22,955 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 436 transitions. [2024-11-28 02:46:22,955 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:46:22,955 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 436 transitions. [2024-11-28 02:46:22,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 02:46:22,957 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:46:22,957 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:46:22,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-28 02:46:23,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:46:23,158 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:46:23,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:46:23,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1320109804, now seen corresponding path program 1 times [2024-11-28 02:46:23,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:46:23,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583770354] [2024-11-28 02:46:23,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:46:23,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:46:23,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:46:23,161 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:46:23,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-28 02:46:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:46:23,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:46:23,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:46:23,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 02:46:23,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 02:46:23,676 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 31 treesize of output 34 [2024-11-28 02:46:27,823 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:46:27,823 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:46:27,824 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:46:27,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583770354] [2024-11-28 02:46:27,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583770354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:46:27,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:46:27,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:46:27,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354175507] [2024-11-28 02:46:27,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:46:27,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:46:27,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:46:27,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:46:27,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=19, Unknown=1, NotChecked=0, Total=30 [2024-11-28 02:46:27,825 INFO L87 Difference]: Start difference. First operand 298 states and 436 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:46:33,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:46:36,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:46:40,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:46:44,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:46:48,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:46:52,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:46:56,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:47:01,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:47:05,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:47:09,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:47:13,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:47:17,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:47:21,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:47:25,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:47:28,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:47:32,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:47:36,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:47:40,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:47:44,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:47:48,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:47:52,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:47:56,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:48:00,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:48:04,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:48:08,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:48:13,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:48:17,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:48:21,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:48:25,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:48:28,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:48:32,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:48:36,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:48:40,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:48:40,922 INFO L93 Difference]: Finished difference Result 704 states and 1036 transitions. [2024-11-28 02:48:40,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:48:40,923 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-28 02:48:40,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:48:40,926 INFO L225 Difference]: With dead ends: 704 [2024-11-28 02:48:40,926 INFO L226 Difference]: Without dead ends: 409 [2024-11-28 02:48:40,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=20, Invalid=35, Unknown=1, NotChecked=0, Total=56 [2024-11-28 02:48:40,928 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 215 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 14 mSolverCounterUnsat, 32 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 132.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 32 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 133.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:48:40,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 869 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 638 Invalid, 32 Unknown, 0 Unchecked, 133.0s Time] [2024-11-28 02:48:40,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-28 02:48:40,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 359. [2024-11-28 02:48:40,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 323 states have (on average 1.4210526315789473) internal successors, (459), 323 states have internal predecessors, (459), 32 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-28 02:48:40,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 523 transitions. [2024-11-28 02:48:40,960 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 523 transitions. Word has length 137 [2024-11-28 02:48:40,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:48:40,962 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 523 transitions. [2024-11-28 02:48:40,962 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:48:40,962 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 523 transitions. [2024-11-28 02:48:40,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 02:48:40,964 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:48:40,964 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:48:40,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-28 02:48:41,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:48:41,172 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:48:41,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:48:41,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1604988632, now seen corresponding path program 1 times [2024-11-28 02:48:41,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:48:41,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783997721] [2024-11-28 02:48:41,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:48:41,173 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:48:41,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:48:41,175 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:48:41,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-28 02:48:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:48:41,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:48:41,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:48:41,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 02:48:41,691 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 31 treesize of output 15 [2024-11-28 02:48:41,711 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 37 treesize of output 25 [2024-11-28 02:48:45,446 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:48:45,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 14 [2024-11-28 02:48:45,618 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:48:45,619 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:48:45,619 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:48:45,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783997721] [2024-11-28 02:48:45,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783997721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:48:45,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:48:45,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:48:45,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113321622] [2024-11-28 02:48:45,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:48:45,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:48:45,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:48:45,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:48:45,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=19, Unknown=1, NotChecked=0, Total=30 [2024-11-28 02:48:45,621 INFO L87 Difference]: Start difference. First operand 359 states and 523 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:48:54,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:48:58,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.54s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:49:02,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.85s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:49:07,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:49:10,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:49:15,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:49:19,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:49:23,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:49:27,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:49:32,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:49:36,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:49:40,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.62s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:49:44,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:49:49,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:49:53,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:49:57,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:50:01,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:50:05,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:50:09,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.86s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:50:15,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:50:20,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:50:25,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:50:29,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:50:33,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:50:37,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:50:39,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:50:43,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:50:47,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:50:51,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:50:56,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:51:00,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:51:04,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:51:08,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:51:13,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:51:17,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:51:21,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:51:26,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:51:29,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:51:29,342 INFO L93 Difference]: Finished difference Result 773 states and 1132 transitions. [2024-11-28 02:51:29,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:51:29,343 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-28 02:51:29,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:51:29,346 INFO L225 Difference]: With dead ends: 773 [2024-11-28 02:51:29,346 INFO L226 Difference]: Without dead ends: 417 [2024-11-28 02:51:29,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=20, Invalid=35, Unknown=1, NotChecked=0, Total=56 [2024-11-28 02:51:29,348 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 382 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 62 mSolverCounterUnsat, 36 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 163.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 36 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 163.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:51:29,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 642 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 481 Invalid, 36 Unknown, 0 Unchecked, 163.6s Time] [2024-11-28 02:51:29,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-28 02:51:29,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 363. [2024-11-28 02:51:29,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 327 states have (on average 1.4128440366972477) internal successors, (462), 327 states have internal predecessors, (462), 32 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-28 02:51:29,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 526 transitions. [2024-11-28 02:51:29,381 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 526 transitions. Word has length 137 [2024-11-28 02:51:29,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:51:29,381 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 526 transitions. [2024-11-28 02:51:29,382 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:51:29,382 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 526 transitions. [2024-11-28 02:51:29,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:51:29,384 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:51:29,384 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:51:29,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-11-28 02:51:29,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:51:29,585 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:51:29,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:51:29,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1945701522, now seen corresponding path program 1 times [2024-11-28 02:51:29,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:51:29,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022223997] [2024-11-28 02:51:29,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:51:29,586 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:51:29,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:51:29,588 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:51:29,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-28 02:51:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:51:30,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-28 02:51:30,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:51:30,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 02:51:30,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2024-11-28 02:51:30,726 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 38 treesize of output 16 [2024-11-28 02:51:31,198 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 47 treesize of output 28 [2024-11-28 02:51:32,242 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:51:32,243 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 66 treesize of output 63 [2024-11-28 02:51:36,836 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:51:36,837 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 91 treesize of output 79 [2024-11-28 02:51:45,480 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:51:45,480 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 106 treesize of output 82 [2024-11-28 02:51:45,973 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:51:45,974 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 101 treesize of output 92 [2024-11-28 02:51:59,701 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:51:59,701 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 130 treesize of output 111 [2024-11-28 02:52:00,275 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:52:00,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 146 treesize of output 134 [2024-11-28 02:52:06,853 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 360 proven. 81 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 02:52:06,854 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:52:08,040 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:52:08,040 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:52:08,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022223997] [2024-11-28 02:52:08,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2022223997] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:52:08,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:52:08,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [34] total 39 [2024-11-28 02:52:08,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811173739] [2024-11-28 02:52:08,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:08,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:52:08,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:52:08,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:52:08,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=1259, Unknown=7, NotChecked=0, Total=1482 [2024-11-28 02:52:08,042 INFO L87 Difference]: Start difference. First operand 363 states and 526 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:52:22,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:22,589 INFO L93 Difference]: Finished difference Result 842 states and 1218 transitions. [2024-11-28 02:52:22,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:52:22,591 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-28 02:52:22,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:22,594 INFO L225 Difference]: With dead ends: 842 [2024-11-28 02:52:22,595 INFO L226 Difference]: Without dead ends: 482 [2024-11-28 02:52:22,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 33.4s TimeCoverageRelationStatistics Valid=241, Invalid=1644, Unknown=7, NotChecked=0, Total=1892 [2024-11-28 02:52:22,597 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 117 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:22,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1583 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2024-11-28 02:52:22,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-28 02:52:22,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 479. [2024-11-28 02:52:22,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 438 states have (on average 1.4155251141552512) internal successors, (620), 439 states have internal predecessors, (620), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 02:52:22,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 692 transitions. [2024-11-28 02:52:22,634 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 692 transitions. Word has length 139 [2024-11-28 02:52:22,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:22,634 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 692 transitions. [2024-11-28 02:52:22,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:52:22,634 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 692 transitions. [2024-11-28 02:52:22,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:52:22,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:22,637 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:22,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-11-28 02:52:22,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:52:22,838 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:22,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:22,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1648201196, now seen corresponding path program 1 times [2024-11-28 02:52:22,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:52:22,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548975272] [2024-11-28 02:52:22,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:22,839 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:52:22,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:52:22,842 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:52:22,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-28 02:52:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:23,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:52:23,333 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:52:23,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 02:52:23,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-28 02:52:23,397 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 33 [2024-11-28 02:52:27,538 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:52:27,539 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 39 treesize of output 15 [2024-11-28 02:52:27,564 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:52:27,564 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:52:27,565 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:52:27,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548975272] [2024-11-28 02:52:27,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [548975272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:27,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:27,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:52:27,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397883484] [2024-11-28 02:52:27,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:27,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:52:27,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:52:27,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:52:27,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=19, Unknown=1, NotChecked=0, Total=30 [2024-11-28 02:52:27,566 INFO L87 Difference]: Start difference. First operand 479 states and 692 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:52:32,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:52:36,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:52:40,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:52:44,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:52:49,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:52:53,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:52:57,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:53:01,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:53:05,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:53:09,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:53:13,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:53:17,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:53:21,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:53:25,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:53:29,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:53:34,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:53:38,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:53:43,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:53:47,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:53:51,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:53:55,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:53:59,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:54:03,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:54:08,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:54:12,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:54:16,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:54:20,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:54:24,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:54:28,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:54:32,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:54:36,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:54:40,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:54:44,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:54:48,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:48,643 INFO L93 Difference]: Finished difference Result 977 states and 1409 transitions. [2024-11-28 02:54:48,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:54:48,644 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-28 02:54:48,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:48,647 INFO L225 Difference]: With dead ends: 977 [2024-11-28 02:54:48,647 INFO L226 Difference]: Without dead ends: 501 [2024-11-28 02:54:48,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=15, Invalid=26, Unknown=1, NotChecked=0, Total=42 [2024-11-28 02:54:48,650 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 122 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 6 mSolverCounterUnsat, 33 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 140.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 33 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 141.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:48,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 857 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 509 Invalid, 33 Unknown, 0 Unchecked, 141.0s Time] [2024-11-28 02:54:48,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-28 02:54:48,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 498. [2024-11-28 02:54:48,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 448 states have (on average 1.4040178571428572) internal successors, (629), 450 states have internal predecessors, (629), 44 states have call successors, (44), 5 states have call predecessors, (44), 5 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-28 02:54:48,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 717 transitions. [2024-11-28 02:54:48,692 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 717 transitions. Word has length 139 [2024-11-28 02:54:48,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:48,693 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 717 transitions. [2024-11-28 02:54:48,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:54:48,693 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 717 transitions. [2024-11-28 02:54:48,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:54:48,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:48,695 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:48,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:48,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:54:48,896 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:54:48,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:48,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1128053072, now seen corresponding path program 1 times [2024-11-28 02:54:48,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:54:48,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539127545] [2024-11-28 02:54:48,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:48,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:54:48,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:54:48,899 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:54:48,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-28 02:54:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:49,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:54:49,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:49,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 02:54:49,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 02:54:49,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2024-11-28 02:54:53,542 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:54:53,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 12 [2024-11-28 02:54:53,560 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:54:53,561 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:53,561 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:54:53,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539127545] [2024-11-28 02:54:53,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539127545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:53,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:53,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:54:53,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250337625] [2024-11-28 02:54:53,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:53,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:54:53,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:54:53,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:54:53,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=19, Unknown=1, NotChecked=0, Total=30 [2024-11-28 02:54:53,563 INFO L87 Difference]: Start difference. First operand 498 states and 717 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:54:59,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:55:03,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:55:07,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:55:11,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:55:14,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:55:18,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:55:22,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:55:26,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:55:30,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:55:34,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:55:38,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:55:42,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:55:46,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:55:50,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:55:54,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:55:58,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:56:03,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:56:07,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:56:11,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:56:15,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:56:19,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:56:23,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:56:27,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:56:31,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:56:36,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:56:40,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:56:44,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:56:48,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:56:52,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:56:56,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:57:00,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:57:04,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:57:08,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:57:12,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:57:14,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:14,129 INFO L93 Difference]: Finished difference Result 991 states and 1423 transitions. [2024-11-28 02:57:14,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:57:14,130 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-28 02:57:14,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:14,133 INFO L225 Difference]: With dead ends: 991 [2024-11-28 02:57:14,133 INFO L226 Difference]: Without dead ends: 505 [2024-11-28 02:57:14,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=15, Invalid=26, Unknown=1, NotChecked=0, Total=42 [2024-11-28 02:57:14,134 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 194 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 26 mSolverCounterUnsat, 33 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 140.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 33 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 140.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:14,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 807 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 422 Invalid, 33 Unknown, 0 Unchecked, 140.5s Time] [2024-11-28 02:57:14,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-28 02:57:14,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 481. [2024-11-28 02:57:14,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 439 states have (on average 1.4100227790432802) internal successors, (619), 440 states have internal predecessors, (619), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 02:57:14,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 691 transitions. [2024-11-28 02:57:14,169 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 691 transitions. Word has length 139 [2024-11-28 02:57:14,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:14,170 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 691 transitions. [2024-11-28 02:57:14,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:57:14,170 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 691 transitions. [2024-11-28 02:57:14,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:57:14,173 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:14,173 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:14,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-11-28 02:57:14,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:57:14,374 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:14,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:14,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1829117650, now seen corresponding path program 1 times [2024-11-28 02:57:14,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:57:14,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352441494] [2024-11-28 02:57:14,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:14,375 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:57:14,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:57:14,376 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:57:14,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-28 02:57:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:14,991 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-28 02:57:14,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:57:15,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 02:57:15,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2024-11-28 02:57:15,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2024-11-28 02:57:15,644 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 47 treesize of output 28 [2024-11-28 02:57:16,656 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:57:16,656 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 66 treesize of output 63 [2024-11-28 02:57:21,253 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:57:21,253 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 86 treesize of output 89 [2024-11-28 02:57:30,022 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:57:30,023 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 116 treesize of output 95 [2024-11-28 02:57:30,695 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:57:30,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 106 treesize of output 115 [2024-11-28 02:57:44,993 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:57:44,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 150 treesize of output 137 [2024-11-28 02:57:50,573 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:57:50,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 204 treesize of output 174 [2024-11-28 02:57:59,518 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 355 proven. 78 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-28 02:57:59,519 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:58:00,685 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:58:00,685 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:58:00,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352441494] [2024-11-28 02:58:00,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352441494] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:58:00,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:58:00,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [34] total 39 [2024-11-28 02:58:00,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851124299] [2024-11-28 02:58:00,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:58:00,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:58:00,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:58:00,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:58:00,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=1259, Unknown=7, NotChecked=0, Total=1482 [2024-11-28 02:58:00,689 INFO L87 Difference]: Start difference. First operand 481 states and 691 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:58:14,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:14,218 INFO L93 Difference]: Finished difference Result 977 states and 1400 transitions. [2024-11-28 02:58:14,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:58:14,226 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-28 02:58:14,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:14,230 INFO L225 Difference]: With dead ends: 977 [2024-11-28 02:58:14,230 INFO L226 Difference]: Without dead ends: 499 [2024-11-28 02:58:14,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 40.4s TimeCoverageRelationStatistics Valid=241, Invalid=1644, Unknown=7, NotChecked=0, Total=1892 [2024-11-28 02:58:14,233 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 113 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:14,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1643 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 13.1s Time] [2024-11-28 02:58:14,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-28 02:58:14,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 441. [2024-11-28 02:58:14,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 399 states have (on average 1.406015037593985) internal successors, (561), 400 states have internal predecessors, (561), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 02:58:14,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 633 transitions. [2024-11-28 02:58:14,276 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 633 transitions. Word has length 139 [2024-11-28 02:58:14,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:58:14,278 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 633 transitions. [2024-11-28 02:58:14,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:58:14,280 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 633 transitions. [2024-11-28 02:58:14,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:58:14,282 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:58:14,282 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:58:14,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-28 02:58:14,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:58:14,483 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:58:14,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:58:14,484 INFO L85 PathProgramCache]: Analyzing trace with hash 196071605, now seen corresponding path program 1 times [2024-11-28 02:58:14,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:58:14,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462549951] [2024-11-28 02:58:14,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:14,484 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:58:14,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:58:14,486 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:58:14,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-28 02:58:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:14,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:58:14,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:58:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 02:58:14,896 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:58:14,897 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:58:14,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462549951] [2024-11-28 02:58:14,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462549951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:58:14,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:58:14,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:58:14,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684225192] [2024-11-28 02:58:14,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:58:14,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:58:14,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:58:14,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:58:14,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:58:14,899 INFO L87 Difference]: Start difference. First operand 441 states and 633 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:58:15,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:15,754 INFO L93 Difference]: Finished difference Result 941 states and 1344 transitions. [2024-11-28 02:58:15,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:58:15,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-28 02:58:15,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:15,758 INFO L225 Difference]: With dead ends: 941 [2024-11-28 02:58:15,758 INFO L226 Difference]: Without dead ends: 512 [2024-11-28 02:58:15,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:58:15,760 INFO L435 NwaCegarLoop]: 312 mSDtfsCounter, 112 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:15,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 507 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:58:15,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-28 02:58:15,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 418. [2024-11-28 02:58:15,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 376 states have (on average 1.3829787234042554) internal successors, (520), 377 states have internal predecessors, (520), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 02:58:15,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 592 transitions. [2024-11-28 02:58:15,813 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 592 transitions. Word has length 139 [2024-11-28 02:58:15,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:58:15,814 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 592 transitions. [2024-11-28 02:58:15,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 02:58:15,814 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 592 transitions. [2024-11-28 02:58:15,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 02:58:15,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:58:15,816 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:58:15,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-28 02:58:16,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:58:16,016 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:58:16,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:58:16,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1925589886, now seen corresponding path program 1 times [2024-11-28 02:58:16,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:58:16,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540250731] [2024-11-28 02:58:16,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:16,017 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 [2024-11-28 02:58:16,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:58:16,019 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:58:16,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e49ce-f2d1-4dec-8866-a5bb7bd46597/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-28 02:58:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:16,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 02:58:16,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:58:16,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 02:58:16,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 02:58:16,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 02:58:16,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 02:58:16,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 02:58:16,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2024-11-28 02:58:20,969 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:58:20,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 28 [2024-11-28 02:58:21,093 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:58:21,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 38 [2024-11-28 02:58:29,301 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:58:29,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 51 [2024-11-28 02:58:41,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 76 [2024-11-28 02:58:41,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 02:58:41,730 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:58:41,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 124 [2024-11-28 02:58:41,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:58:41,936 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 62 treesize of output 26 [2024-11-28 02:58:41,977 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 313 proven. 36 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-28 02:58:41,977 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:58:42,577 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 9 proven. 36 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-28 02:58:42,578 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:58:42,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540250731] [2024-11-28 02:58:42,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1540250731] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:58:42,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:58:42,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 16 [2024-11-28 02:58:42,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603196545] [2024-11-28 02:58:42,578 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:58:42,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 02:58:42,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:58:42,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 02:58:42,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=173, Unknown=6, NotChecked=0, Total=240 [2024-11-28 02:58:42,580 INFO L87 Difference]: Start difference. First operand 418 states and 592 transitions. Second operand has 16 states, 14 states have (on average 7.571428571428571) internal successors, (106), 16 states have internal predecessors, (106), 7 states have call successors, (29), 5 states have call predecessors, (29), 7 states have return successors, (29), 5 states have call predecessors, (29), 7 states have call successors, (29) [2024-11-28 02:58:47,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:58:51,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:58:55,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]