./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.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_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 13a017e811a0741c89c8b84e8861e71b0cc1dab29c6c9c0512aab721a63586fe --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 05:51:43,161 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 05:51:43,214 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 05:51:43,219 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 05:51:43,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 05:51:43,242 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 05:51:43,242 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 05:51:43,243 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 05:51:43,243 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 05:51:43,243 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 05:51:43,243 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 05:51:43,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 05:51:43,244 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 05:51:43,244 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 05:51:43,244 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 05:51:43,244 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 05:51:43,244 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 05:51:43,244 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 05:51:43,244 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 05:51:43,244 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 05:51:43,245 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 05:51:43,245 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 05:51:43,245 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 05:51:43,245 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 05:51:43,245 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 05:51:43,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 05:51:43,245 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 05:51:43,245 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 05:51:43,245 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 05:51:43,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:51:43,245 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:51:43,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:51:43,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:51:43,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 05:51:43,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:51:43,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:51:43,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:51:43,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:51:43,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 05:51:43,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 05:51:43,246 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 05:51:43,246 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 05:51:43,246 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 05:51:43,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 05:51:43,247 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 05:51:43,247 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 05:51:43,247 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 05:51:43,247 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 05:51:43,247 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_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13a017e811a0741c89c8b84e8861e71b0cc1dab29c6c9c0512aab721a63586fe [2024-12-02 05:51:43,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 05:51:43,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 05:51:43,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 05:51:43,468 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 05:51:43,469 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 05:51:43,470 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i [2024-12-02 05:51:46,063 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/data/5606f73c3/1c28025f31b3402d8a38d70df1a53eb0/FLAGa43f37cb6 [2024-12-02 05:51:46,293 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 05:51:46,293 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i [2024-12-02 05:51:46,302 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/data/5606f73c3/1c28025f31b3402d8a38d70df1a53eb0/FLAGa43f37cb6 [2024-12-02 05:51:46,627 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/data/5606f73c3/1c28025f31b3402d8a38d70df1a53eb0 [2024-12-02 05:51:46,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 05:51:46,630 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 05:51:46,631 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 05:51:46,631 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 05:51:46,634 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 05:51:46,634 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:51:46" (1/1) ... [2024-12-02 05:51:46,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be6844c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:51:46, skipping insertion in model container [2024-12-02 05:51:46,635 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:51:46" (1/1) ... [2024-12-02 05:51:46,647 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 05:51:46,749 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_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i[916,929] [2024-12-02 05:51:46,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:51:46,806 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 05:51:46,814 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_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i[916,929] [2024-12-02 05:51:46,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:51:46,859 INFO L204 MainTranslator]: Completed translation [2024-12-02 05:51:46,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:51:46 WrapperNode [2024-12-02 05:51:46,860 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 05:51:46,860 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 05:51:46,861 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 05:51:46,861 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 05:51:46,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:51:46" (1/1) ... [2024-12-02 05:51:46,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:51:46" (1/1) ... [2024-12-02 05:51:46,905 INFO L138 Inliner]: procedures = 29, calls = 130, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 401 [2024-12-02 05:51:46,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 05:51:46,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 05:51:46,906 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 05:51:46,906 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 05:51:46,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:51:46" (1/1) ... [2024-12-02 05:51:46,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:51:46" (1/1) ... [2024-12-02 05:51:46,918 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:51:46" (1/1) ... [2024-12-02 05:51:46,936 INFO L175 MemorySlicer]: Split 101 memory accesses to 5 slices as follows [2, 37, 8, 40, 14]. 40 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 5, 1, 3, 2]. The 16 writes are split as follows [0, 9, 1, 3, 3]. [2024-12-02 05:51:46,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:51:46" (1/1) ... [2024-12-02 05:51:46,937 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:51:46" (1/1) ... [2024-12-02 05:51:46,953 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:51:46" (1/1) ... [2024-12-02 05:51:46,954 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:51:46" (1/1) ... [2024-12-02 05:51:46,958 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:51:46" (1/1) ... [2024-12-02 05:51:46,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:51:46" (1/1) ... [2024-12-02 05:51:46,962 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:51:46" (1/1) ... [2024-12-02 05:51:46,966 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 05:51:46,967 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 05:51:46,967 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 05:51:46,967 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 05:51:46,968 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:51:46" (1/1) ... [2024-12-02 05:51:46,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:51:46,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:51:46,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 05:51:46,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 05:51:47,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 05:51:47,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-12-02 05:51:47,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-12-02 05:51:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-12-02 05:51:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-12-02 05:51:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-12-02 05:51:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 05:51:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 05:51:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 05:51:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 05:51:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 05:51:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-12-02 05:51:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-12-02 05:51:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-12-02 05:51:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-12-02 05:51:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-12-02 05:51:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 05:51:47,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 05:51:47,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 05:51:47,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 05:51:47,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 05:51:47,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-12-02 05:51:47,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-12-02 05:51:47,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-12-02 05:51:47,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-12-02 05:51:47,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-12-02 05:51:47,014 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 05:51:47,014 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 05:51:47,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 05:51:47,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 05:51:47,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 05:51:47,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 05:51:47,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 05:51:47,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 05:51:47,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 05:51:47,125 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 05:51:47,127 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 05:51:47,500 INFO L? ?]: Removed 100 outVars from TransFormulas that were not future-live. [2024-12-02 05:51:47,500 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 05:51:47,511 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 05:51:47,511 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 05:51:47,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:51:47 BoogieIcfgContainer [2024-12-02 05:51:47,511 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 05:51:47,514 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 05:51:47,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 05:51:47,519 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 05:51:47,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:51:46" (1/3) ... [2024-12-02 05:51:47,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d26f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:51:47, skipping insertion in model container [2024-12-02 05:51:47,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:51:46" (2/3) ... [2024-12-02 05:51:47,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d26f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:51:47, skipping insertion in model container [2024-12-02 05:51:47,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:51:47" (3/3) ... [2024-12-02 05:51:47,521 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-46.i [2024-12-02 05:51:47,536 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 05:51:47,538 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-46.i that has 2 procedures, 101 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 05:51:47,599 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 05:51:47,610 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;@1befaf4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 05:51:47,610 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 05:51:47,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 85 states have internal predecessors, (119), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 05:51:47,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 05:51:47,623 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:47,623 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:51:47,624 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:47,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:47,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1009715545, now seen corresponding path program 1 times [2024-12-02 05:51:47,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:47,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738291386] [2024-12-02 05:51:47,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:47,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:47,878 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-12-02 05:51:47,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:47,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738291386] [2024-12-02 05:51:47,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738291386] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:51:47,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874904930] [2024-12-02 05:51:47,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:47,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:51:47,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:51:47,882 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:51:47,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 05:51:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:48,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 05:51:48,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:51:48,098 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-12-02 05:51:48,098 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:51:48,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874904930] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:48,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:51:48,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 05:51:48,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137449299] [2024-12-02 05:51:48,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:48,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 05:51:48,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:48,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 05:51:48,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 05:51:48,120 INFO L87 Difference]: Start difference. First operand has 101 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 85 states have internal predecessors, (119), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 05:51:48,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:51:48,144 INFO L93 Difference]: Finished difference Result 195 states and 302 transitions. [2024-12-02 05:51:48,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 05:51:48,146 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-12-02 05:51:48,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:48,151 INFO L225 Difference]: With dead ends: 195 [2024-12-02 05:51:48,151 INFO L226 Difference]: Without dead ends: 97 [2024-12-02 05:51:48,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 05:51:48,156 INFO L435 NwaCegarLoop]: 140 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, 140 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:48,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:51:48,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-12-02 05:51:48,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-12-02 05:51:48,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 81 states have (on average 1.382716049382716) internal successors, (112), 81 states have internal predecessors, (112), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 05:51:48,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 140 transitions. [2024-12-02 05:51:48,190 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 140 transitions. Word has length 116 [2024-12-02 05:51:48,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:51:48,191 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 140 transitions. [2024-12-02 05:51:48,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 05:51:48,191 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 140 transitions. [2024-12-02 05:51:48,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 05:51:48,194 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:48,194 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:51:48,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 05:51:48,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 05:51:48,394 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:48,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:48,395 INFO L85 PathProgramCache]: Analyzing trace with hash -675339485, now seen corresponding path program 1 times [2024-12-02 05:51:48,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:48,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780425011] [2024-12-02 05:51:48,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:48,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:49,361 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:51:49,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:49,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780425011] [2024-12-02 05:51:49,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780425011] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:49,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:51:49,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 05:51:49,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772485713] [2024-12-02 05:51:49,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:49,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 05:51:49,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:49,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 05:51:49,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:51:49,364 INFO L87 Difference]: Start difference. First operand 97 states and 140 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 05:51:49,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:51:49,836 INFO L93 Difference]: Finished difference Result 364 states and 528 transitions. [2024-12-02 05:51:49,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:51:49,837 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-12-02 05:51:49,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:49,840 INFO L225 Difference]: With dead ends: 364 [2024-12-02 05:51:49,840 INFO L226 Difference]: Without dead ends: 270 [2024-12-02 05:51:49,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-12-02 05:51:49,842 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 372 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:49,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 612 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:51:49,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-12-02 05:51:49,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 265. [2024-12-02 05:51:49,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 224 states have (on average 1.3973214285714286) internal successors, (313), 225 states have internal predecessors, (313), 37 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-12-02 05:51:49,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 387 transitions. [2024-12-02 05:51:49,876 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 387 transitions. Word has length 116 [2024-12-02 05:51:49,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:51:49,877 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 387 transitions. [2024-12-02 05:51:49,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 05:51:49,877 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 387 transitions. [2024-12-02 05:51:49,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 05:51:49,880 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:49,880 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:51:49,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 05:51:49,881 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:49,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:49,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1262145499, now seen corresponding path program 1 times [2024-12-02 05:51:49,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:49,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132456964] [2024-12-02 05:51:49,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:49,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:50,461 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:51:50,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:50,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132456964] [2024-12-02 05:51:50,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132456964] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:50,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:51:50,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:51:50,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249106679] [2024-12-02 05:51:50,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:50,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:51:50,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:50,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:51:50,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:51:50,464 INFO L87 Difference]: Start difference. First operand 265 states and 387 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:51:50,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:51:50,643 INFO L93 Difference]: Finished difference Result 795 states and 1164 transitions. [2024-12-02 05:51:50,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:51:50,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2024-12-02 05:51:50,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:50,648 INFO L225 Difference]: With dead ends: 795 [2024-12-02 05:51:50,648 INFO L226 Difference]: Without dead ends: 533 [2024-12-02 05:51:50,650 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 [2024-12-02 05:51:50,650 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 125 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:50,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 523 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:51:50,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-12-02 05:51:50,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 301. [2024-12-02 05:51:50,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 260 states have (on average 1.396153846153846) internal successors, (363), 261 states have internal predecessors, (363), 37 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-12-02 05:51:50,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 437 transitions. [2024-12-02 05:51:50,686 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 437 transitions. Word has length 116 [2024-12-02 05:51:50,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:51:50,687 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 437 transitions. [2024-12-02 05:51:50,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:51:50,687 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 437 transitions. [2024-12-02 05:51:50,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 05:51:50,690 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:50,690 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:51:50,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 05:51:50,690 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:50,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:50,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1079912016, now seen corresponding path program 1 times [2024-12-02 05:51:50,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:50,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576907726] [2024-12-02 05:51:50,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:50,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 05:51:50,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1475612466] [2024-12-02 05:51:50,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:50,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:51:50,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:51:50,810 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:51:50,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 05:51:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:51,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 05:51:51,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:51:51,165 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 [2024-12-02 05:51:51,201 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 [2024-12-02 05:51:51,722 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:51:51,723 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 92 treesize of output 36 [2024-12-02 05:51:51,894 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:51:51,894 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:51:51,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:51,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576907726] [2024-12-02 05:51:51,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 05:51:51,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475612466] [2024-12-02 05:51:51,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475612466] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:51,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:51:51,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:51:51,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337585553] [2024-12-02 05:51:51,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:51,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 05:51:51,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:51,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 05:51:51,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:51:51,897 INFO L87 Difference]: Start difference. First operand 301 states and 437 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:51:56,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 05:51:58,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:51:58,168 INFO L93 Difference]: Finished difference Result 774 states and 1118 transitions. [2024-12-02 05:51:58,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 05:51:58,169 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-12-02 05:51:58,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:58,173 INFO L225 Difference]: With dead ends: 774 [2024-12-02 05:51:58,173 INFO L226 Difference]: Without dead ends: 476 [2024-12-02 05:51:58,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:51:58,175 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 192 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:58,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 955 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2024-12-02 05:51:58,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-12-02 05:51:58,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 329. [2024-12-02 05:51:58,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 288 states have (on average 1.3923611111111112) internal successors, (401), 289 states have internal predecessors, (401), 37 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-12-02 05:51:58,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 475 transitions. [2024-12-02 05:51:58,204 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 475 transitions. Word has length 118 [2024-12-02 05:51:58,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:51:58,204 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 475 transitions. [2024-12-02 05:51:58,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:51:58,205 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 475 transitions. [2024-12-02 05:51:58,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 05:51:58,206 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:58,207 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:51:58,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 05:51:58,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:51:58,407 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:58,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:58,408 INFO L85 PathProgramCache]: Analyzing trace with hash -199951662, now seen corresponding path program 1 times [2024-12-02 05:51:58,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:58,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984145013] [2024-12-02 05:51:58,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:58,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:58,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:59,199 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:51:59,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:59,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984145013] [2024-12-02 05:51:59,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984145013] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:59,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:51:59,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:51:59,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781619668] [2024-12-02 05:51:59,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:59,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:51:59,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:59,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:51:59,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:51:59,203 INFO L87 Difference]: Start difference. First operand 329 states and 475 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:52:01,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:52:01,074 INFO L93 Difference]: Finished difference Result 729 states and 1049 transitions. [2024-12-02 05:52:01,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:52:01,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-12-02 05:52:01,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:52:01,078 INFO L225 Difference]: With dead ends: 729 [2024-12-02 05:52:01,078 INFO L226 Difference]: Without dead ends: 399 [2024-12-02 05:52:01,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-12-02 05:52:01,079 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 258 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 05:52:01,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 646 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 05:52:01,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-12-02 05:52:01,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 329. [2024-12-02 05:52:01,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 288 states have (on average 1.3784722222222223) internal successors, (397), 289 states have internal predecessors, (397), 37 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-12-02 05:52:01,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 471 transitions. [2024-12-02 05:52:01,096 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 471 transitions. Word has length 118 [2024-12-02 05:52:01,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:52:01,096 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 471 transitions. [2024-12-02 05:52:01,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:52:01,097 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 471 transitions. [2024-12-02 05:52:01,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 05:52:01,098 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:52:01,098 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:52:01,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 05:52:01,098 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:52:01,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:01,098 INFO L85 PathProgramCache]: Analyzing trace with hash 93460718, now seen corresponding path program 1 times [2024-12-02 05:52:01,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:52:01,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366755143] [2024-12-02 05:52:01,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:01,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:52:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 05:52:01,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1937901408] [2024-12-02 05:52:01,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:01,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:52:01,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:01,155 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:52:01,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 05:52:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:52:01,434 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 05:52:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:52:01,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 05:52:01,637 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 05:52:01,638 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 05:52:01,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 05:52:01,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-12-02 05:52:01,842 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-12-02 05:52:01,900 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 05:52:01,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:52:01 BoogieIcfgContainer [2024-12-02 05:52:01,904 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 05:52:01,904 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 05:52:01,904 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 05:52:01,905 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 05:52:01,905 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:51:47" (3/4) ... [2024-12-02 05:52:01,907 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 05:52:01,908 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 05:52:01,909 INFO L158 Benchmark]: Toolchain (without parser) took 15278.90ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 117.4MB in the beginning and 248.6MB in the end (delta: -131.2MB). Peak memory consumption was 153.3MB. Max. memory is 16.1GB. [2024-12-02 05:52:01,909 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory was 83.1MB in the beginning and 83.0MB in the end (delta: 33.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 05:52:01,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.30ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 103.2MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 05:52:01,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.10ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 100.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 05:52:01,910 INFO L158 Benchmark]: Boogie Preprocessor took 60.15ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 96.2MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 05:52:01,910 INFO L158 Benchmark]: RCFGBuilder took 544.68ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 66.9MB in the end (delta: 29.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 05:52:01,911 INFO L158 Benchmark]: TraceAbstraction took 14389.87ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 66.4MB in the beginning and 248.7MB in the end (delta: -182.3MB). Peak memory consumption was 111.3MB. Max. memory is 16.1GB. [2024-12-02 05:52:01,911 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 427.8MB. Free memory was 248.7MB in the beginning and 248.6MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 05:52:01,913 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory was 83.1MB in the beginning and 83.0MB in the end (delta: 33.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.30ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 103.2MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.10ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 100.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 60.15ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 96.2MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 544.68ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 66.9MB in the end (delta: 29.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 14389.87ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 66.4MB in the beginning and 248.7MB in the end (delta: -182.3MB). Peak memory consumption was 111.3MB. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 427.8MB. Free memory was 248.7MB in the beginning and 248.6MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 84, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryDOUBLEComparisonOperation at line 84, overapproximation of someBinaryDOUBLEComparisonOperation at line 46. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 1, 1, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 1, 1, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 1, 1, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 1, 1, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 1, 1, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 1, 1, 0, 0, 1 }; [L25-L27] double double_Array_0[1] = { 31.75 }; [L25-L27] double double_Array_0[1] = { 31.75 }; [L28-L30] signed char signed_char_Array_0[3] = { -25, 4, -8 }; [L28-L30] signed char signed_char_Array_0[3] = { -25, 4, -8 }; [L28-L30] signed char signed_char_Array_0[3] = { -25, 4, -8 }; [L28-L30] signed char signed_char_Array_0[3] = { -25, 4, -8 }; [L31-L33] signed short int signed_short_int_Array_0[2] = { 32, -4 }; [L31-L33] signed short int signed_short_int_Array_0[2] = { 32, -4 }; [L31-L33] signed short int signed_short_int_Array_0[2] = { 32, -4 }; [L34] unsigned char last_1_BOOL_unsigned_char_Array_0_4_ = 1; [L35] signed short int last_1_signed_short_int_Array_0_1_ = -4; VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=0, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L105] isInitial = 1 [L106] FCALL initially() [L108] CALL updateLastVariables() [L97] EXPR BOOL_unsigned_char_Array_0[4] [L97] last_1_BOOL_unsigned_char_Array_0_4_ = BOOL_unsigned_char_Array_0[4] [L98] EXPR signed_short_int_Array_0[1] [L98] last_1_signed_short_int_Array_0_1_ = signed_short_int_Array_0[1] [L108] RET updateLastVariables() [L109] CALL updateVariables() [L74] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L75] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L75] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L75] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L76] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L76] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L76] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L77] BOOL_unsigned_char_Array_0[2] = __VERIFIER_nondet_uchar() [L78] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L78] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L78] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L79] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L79] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[2] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L79] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[2] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L80] BOOL_unsigned_char_Array_0[3] = __VERIFIER_nondet_uchar() [L81] EXPR BOOL_unsigned_char_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L81] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[3] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L81] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[3] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L82] EXPR BOOL_unsigned_char_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L82] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[3] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L82] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[3] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L83] double_Array_0[0] = __VERIFIER_nondet_double() [L84] EXPR double_Array_0[0] [L84] EXPR double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L84] EXPR double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F [L84] EXPR double_Array_0[0] [L84] EXPR double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L84] EXPR (double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+12F && double_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L84] EXPR (double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+12F && double_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L84] CALL assume_abort_if_not((double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L84] RET assume_abort_if_not((double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L85] signed_char_Array_0[1] = __VERIFIER_nondet_char() [L86] EXPR signed_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L86] CALL assume_abort_if_not(signed_char_Array_0[1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L86] RET assume_abort_if_not(signed_char_Array_0[1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L87] EXPR signed_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L87] CALL assume_abort_if_not(signed_char_Array_0[1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L87] RET assume_abort_if_not(signed_char_Array_0[1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L88] signed_char_Array_0[2] = __VERIFIER_nondet_char() [L89] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L89] CALL assume_abort_if_not(signed_char_Array_0[2] >= -128) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L89] RET assume_abort_if_not(signed_char_Array_0[2] >= -128) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L90] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L90] CALL assume_abort_if_not(signed_char_Array_0[2] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L90] RET assume_abort_if_not(signed_char_Array_0[2] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L91] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L91] CALL assume_abort_if_not(signed_char_Array_0[2] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L91] RET assume_abort_if_not(signed_char_Array_0[2] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L92] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L93] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L93] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L93] RET assume_abort_if_not(signed_short_int_Array_0[0] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L94] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L94] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L94] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L109] RET updateVariables() [L110] CALL step() [L39] EXPR signed_short_int_Array_0[0] [L39] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L39] COND FALSE !(last_1_signed_short_int_Array_0_1_ <= (signed_short_int_Array_0[0] / signed_char_Array_0[2])) [L44] EXPR signed_char_Array_0[2] [L44] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L44] EXPR ((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]) [L44] EXPR signed_char_Array_0[2] [L44] EXPR ((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L44] signed long int stepLocal_1 = (((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0])); [L45] EXPR signed_char_Array_0[0] [L45] EXPR signed_char_Array_0[2] [L45] signed long int stepLocal_0 = signed_char_Array_0[0] / signed_char_Array_0[2]; [L46] EXPR double_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L46] COND TRUE (- double_Array_0[0]) >= 16.75 [L47] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L47] COND TRUE stepLocal_0 >= signed_char_Array_0[0] [L48] COND TRUE stepLocal_1 > -32 [L49] BOOL_unsigned_char_Array_0[4] = 0 VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L63] EXPR signed_char_Array_0[0] [L63] signed char stepLocal_2 = signed_char_Array_0[0]; [L64] EXPR signed_char_Array_0[0] [L64] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L64] EXPR signed_char_Array_0[0] | signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, stepLocal_2=-25] [L64] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L64] COND TRUE ((signed_char_Array_0[0] | signed_char_Array_0[0]) + signed_char_Array_0[2]) < stepLocal_2 [L65] EXPR signed_short_int_Array_0[0] [L65] signed_short_int_Array_0[1] = (signed_short_int_Array_0[0] - 256) [L69] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L69] COND FALSE !(1 == signed_char_Array_0[2]) [L110] RET step() [L111] CALL, EXPR property() [L101] EXPR double_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L101] EXPR ((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) [L101] EXPR BOOL_unsigned_char_Array_0[4] [L101] EXPR ((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L101] EXPR (((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1))) && ((1 == signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[1] == ((unsigned char) BOOL_unsigned_char_Array_0[0])) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L101] EXPR (((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1))) && ((1 == signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[1] == ((unsigned char) BOOL_unsigned_char_Array_0[0])) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L101] EXPR ((((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1))) && ((1 == signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[1] == ((unsigned char) BOOL_unsigned_char_Array_0[0])) : 1)) && ((((signed_char_Array_0[0] | signed_char_Array_0[0]) + signed_char_Array_0[2]) < signed_char_Array_0[0]) ? (signed_short_int_Array_0[1] == ((signed short int) (signed_short_int_Array_0[0] - 256))) : (signed_short_int_Array_0[1] == ((signed short int) 128))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L101] EXPR ((((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1))) && ((1 == signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[1] == ((unsigned char) BOOL_unsigned_char_Array_0[0])) : 1)) && ((((signed_char_Array_0[0] | signed_char_Array_0[0]) + signed_char_Array_0[2]) < signed_char_Array_0[0]) ? (signed_short_int_Array_0[1] == ((signed short int) (signed_short_int_Array_0[0] - 256))) : (signed_short_int_Array_0[1] == ((signed short int) 128))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L101] EXPR (((((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1))) && ((1 == signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[1] == ((unsigned char) BOOL_unsigned_char_Array_0[0])) : 1)) && ((((signed_char_Array_0[0] | signed_char_Array_0[0]) + signed_char_Array_0[2]) < signed_char_Array_0[0]) ? (signed_short_int_Array_0[1] == ((signed short int) (signed_short_int_Array_0[0] - 256))) : (signed_short_int_Array_0[1] == ((signed short int) 128)))) && ((last_1_signed_short_int_Array_0_1_ <= (signed_short_int_Array_0[0] / signed_char_Array_0[2])) ? (last_1_BOOL_unsigned_char_Array_0_4_ ? (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1])) : 1) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L101] EXPR (((((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1))) && ((1 == signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[1] == ((unsigned char) BOOL_unsigned_char_Array_0[0])) : 1)) && ((((signed_char_Array_0[0] | signed_char_Array_0[0]) + signed_char_Array_0[2]) < signed_char_Array_0[0]) ? (signed_short_int_Array_0[1] == ((signed short int) (signed_short_int_Array_0[0] - 256))) : (signed_short_int_Array_0[1] == ((signed short int) 128)))) && ((last_1_signed_short_int_Array_0_1_ <= (signed_short_int_Array_0[0] / signed_char_Array_0[2])) ? (last_1_BOOL_unsigned_char_Array_0_4_ ? (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1])) : 1) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L101-L102] return (((((- double_Array_0[0]) >= 16.75) ? (((signed_char_Array_0[0] / signed_char_Array_0[2]) >= signed_char_Array_0[0]) ? ((((((signed_char_Array_0[2]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[2]) : (signed_char_Array_0[0]))) > -32) ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 0)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) (BOOL_unsigned_char_Array_0[3] || BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[3] ? (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1)) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) BOOL_unsigned_char_Array_0[2])))) : (BOOL_unsigned_char_Array_0[4] == ((unsigned char) 1))) && ((1 == signed_char_Array_0[2]) ? (BOOL_unsigned_char_Array_0[1] == ((unsigned char) BOOL_unsigned_char_Array_0[0])) : 1)) && ((((signed_char_Array_0[0] | signed_char_Array_0[0]) + signed_char_Array_0[2]) < signed_char_Array_0[0]) ? (signed_short_int_Array_0[1] == ((signed short int) (signed_short_int_Array_0[0] - 256))) : (signed_short_int_Array_0[1] == ((signed short int) 128)))) && ((last_1_signed_short_int_Array_0_1_ <= (signed_short_int_Array_0[0] / signed_char_Array_0[2])) ? (last_1_BOOL_unsigned_char_Array_0_4_ ? (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1])) : 1) : 1) ; [L111] RET, EXPR property() [L111] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_BOOL_unsigned_char_Array_0_4_=1, last_1_signed_short_int_Array_0_1_=-4, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.3s, OverallIterations: 6, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 947 SdHoareTripleChecker+Valid, 8.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 947 mSDsluCounter, 2876 SdHoareTripleChecker+Invalid, 7.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2161 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1194 IncrementalHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 715 mSDtfsCounter, 1194 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 275 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=329occurred in iteration=4, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 454 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 1054 NumberOfCodeBlocks, 1054 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 694 ConstructedInterpolants, 1 QuantifiedInterpolants, 3167 SizeOfPredicates, 3 NumberOfNonLiveVariables, 792 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 2158/2184 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 05:52:02,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 13a017e811a0741c89c8b84e8861e71b0cc1dab29c6c9c0512aab721a63586fe --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 05:52:03,830 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 05:52:03,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 05:52:03,918 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 05:52:03,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 05:52:03,942 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 05:52:03,942 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 05:52:03,943 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 05:52:03,943 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 05:52:03,943 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 05:52:03,943 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 05:52:03,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 05:52:03,944 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 05:52:03,944 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 05:52:03,944 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 05:52:03,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 05:52:03,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 05:52:03,944 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 05:52:03,944 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 05:52:03,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 05:52:03,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 05:52:03,945 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 05:52:03,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 05:52:03,945 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 05:52:03,945 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 05:52:03,945 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 05:52:03,945 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 05:52:03,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 05:52:03,945 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 05:52:03,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 05:52:03,945 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 05:52:03,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:52:03,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:52:03,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:52:03,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:52:03,946 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 05:52:03,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:52:03,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:52:03,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:52:03,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:52:03,946 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 05:52:03,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 05:52:03,947 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 05:52:03,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 05:52:03,947 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 05:52:03,947 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 05:52:03,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 05:52:03,947 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 05:52:03,947 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 05:52:03,947 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 05:52:03,947 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_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13a017e811a0741c89c8b84e8861e71b0cc1dab29c6c9c0512aab721a63586fe [2024-12-02 05:52:04,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 05:52:04,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 05:52:04,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 05:52:04,186 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 05:52:04,186 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 05:52:04,187 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i [2024-12-02 05:52:06,900 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/data/31622e58f/c5342ea0cb2f4ee089238377fd580284/FLAG8ce1a370b [2024-12-02 05:52:07,079 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 05:52:07,080 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i [2024-12-02 05:52:07,086 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/data/31622e58f/c5342ea0cb2f4ee089238377fd580284/FLAG8ce1a370b [2024-12-02 05:52:07,098 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/data/31622e58f/c5342ea0cb2f4ee089238377fd580284 [2024-12-02 05:52:07,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 05:52:07,101 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 05:52:07,102 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 05:52:07,103 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 05:52:07,107 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 05:52:07,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:52:07" (1/1) ... [2024-12-02 05:52:07,108 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@429e0c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:07, skipping insertion in model container [2024-12-02 05:52:07,109 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:52:07" (1/1) ... [2024-12-02 05:52:07,125 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 05:52:07,234 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_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i[916,929] [2024-12-02 05:52:07,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:52:07,289 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 05:52:07,296 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_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-46.i[916,929] [2024-12-02 05:52:07,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:52:07,346 INFO L204 MainTranslator]: Completed translation [2024-12-02 05:52:07,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:07 WrapperNode [2024-12-02 05:52:07,346 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 05:52:07,347 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 05:52:07,347 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 05:52:07,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 05:52:07,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:07" (1/1) ... [2024-12-02 05:52:07,365 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:07" (1/1) ... [2024-12-02 05:52:07,392 INFO L138 Inliner]: procedures = 33, calls = 130, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 380 [2024-12-02 05:52:07,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 05:52:07,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 05:52:07,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 05:52:07,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 05:52:07,402 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:07" (1/1) ... [2024-12-02 05:52:07,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:07" (1/1) ... [2024-12-02 05:52:07,407 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:07" (1/1) ... [2024-12-02 05:52:07,425 INFO L175 MemorySlicer]: Split 101 memory accesses to 5 slices as follows [2, 37, 8, 40, 14]. 40 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 5, 1, 3, 2]. The 16 writes are split as follows [0, 9, 1, 3, 3]. [2024-12-02 05:52:07,425 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:07" (1/1) ... [2024-12-02 05:52:07,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:07" (1/1) ... [2024-12-02 05:52:07,442 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:07" (1/1) ... [2024-12-02 05:52:07,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:07" (1/1) ... [2024-12-02 05:52:07,447 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:07" (1/1) ... [2024-12-02 05:52:07,450 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:07" (1/1) ... [2024-12-02 05:52:07,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:07" (1/1) ... [2024-12-02 05:52:07,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 05:52:07,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 05:52:07,457 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 05:52:07,457 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 05:52:07,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:07" (1/1) ... [2024-12-02 05:52:07,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:52:07,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:07,486 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:07,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 05:52:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 05:52:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-12-02 05:52:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-12-02 05:52:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-12-02 05:52:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-12-02 05:52:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-12-02 05:52:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-12-02 05:52:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-12-02 05:52:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-12-02 05:52:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-12-02 05:52:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-12-02 05:52:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 05:52:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 05:52:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-12-02 05:52:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-12-02 05:52:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-12-02 05:52:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-12-02 05:52:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-12-02 05:52:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-12-02 05:52:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-12-02 05:52:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-12-02 05:52:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 05:52:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 05:52:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 05:52:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-12-02 05:52:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-12-02 05:52:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-12-02 05:52:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-12-02 05:52:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-12-02 05:52:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-12-02 05:52:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-12-02 05:52:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-12-02 05:52:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-12-02 05:52:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-12-02 05:52:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-12-02 05:52:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-12-02 05:52:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 05:52:07,515 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 05:52:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 05:52:07,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 05:52:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 05:52:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 05:52:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-12-02 05:52:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-12-02 05:52:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-12-02 05:52:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-12-02 05:52:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-12-02 05:52:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-12-02 05:52:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-12-02 05:52:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-12-02 05:52:07,642 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 05:52:07,643 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 05:52:08,229 INFO L? ?]: Removed 90 outVars from TransFormulas that were not future-live. [2024-12-02 05:52:08,229 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 05:52:08,239 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 05:52:08,240 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 05:52:08,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:52:08 BoogieIcfgContainer [2024-12-02 05:52:08,240 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 05:52:08,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 05:52:08,242 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 05:52:08,246 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 05:52:08,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:52:07" (1/3) ... [2024-12-02 05:52:08,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5754c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:52:08, skipping insertion in model container [2024-12-02 05:52:08,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:07" (2/3) ... [2024-12-02 05:52:08,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5754c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:52:08, skipping insertion in model container [2024-12-02 05:52:08,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:52:08" (3/3) ... [2024-12-02 05:52:08,249 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-46.i [2024-12-02 05:52:08,263 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 05:52:08,264 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-46.i that has 2 procedures, 93 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 05:52:08,303 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 05:52:08,313 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;@c39c437, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 05:52:08,313 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 05:52:08,317 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 76 states have (on average 1.4078947368421053) internal successors, (107), 77 states have internal predecessors, (107), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 05:52:08,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 05:52:08,326 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:52:08,326 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:52:08,327 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:52:08,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:08,330 INFO L85 PathProgramCache]: Analyzing trace with hash -421847647, now seen corresponding path program 1 times [2024-12-02 05:52:08,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:52:08,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243098992] [2024-12-02 05:52:08,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:08,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:08,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:52:08,342 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:52:08,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 05:52:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:08,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 05:52:08,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:08,692 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-12-02 05:52:08,692 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:52:08,692 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:52:08,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243098992] [2024-12-02 05:52:08,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243098992] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:52:08,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:52:08,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 05:52:08,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190045839] [2024-12-02 05:52:08,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:52:08,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 05:52:08,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:52:08,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 05:52:08,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 05:52:08,717 INFO L87 Difference]: Start difference. First operand has 93 states, 76 states have (on average 1.4078947368421053) internal successors, (107), 77 states have internal predecessors, (107), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 05:52:08,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:52:08,736 INFO L93 Difference]: Finished difference Result 179 states and 278 transitions. [2024-12-02 05:52:08,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 05:52:08,737 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2024-12-02 05:52:08,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:52:08,742 INFO L225 Difference]: With dead ends: 179 [2024-12-02 05:52:08,742 INFO L226 Difference]: Without dead ends: 89 [2024-12-02 05:52:08,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 05:52:08,748 INFO L435 NwaCegarLoop]: 128 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, 128 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:52:08,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:52:08,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-12-02 05:52:08,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-12-02 05:52:08,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 73 states have (on average 1.36986301369863) internal successors, (100), 73 states have internal predecessors, (100), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 05:52:08,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 128 transitions. [2024-12-02 05:52:08,783 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 128 transitions. Word has length 114 [2024-12-02 05:52:08,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:52:08,784 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 128 transitions. [2024-12-02 05:52:08,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 05:52:08,784 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 128 transitions. [2024-12-02 05:52:08,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 05:52:08,786 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:52:08,787 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:52:08,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 05:52:08,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:08,987 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:52:08,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:08,988 INFO L85 PathProgramCache]: Analyzing trace with hash 807549213, now seen corresponding path program 1 times [2024-12-02 05:52:08,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:52:08,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098812911] [2024-12-02 05:52:08,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:08,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:08,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:52:08,990 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:52:08,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 05:52:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:09,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 05:52:09,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:09,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 05:52:10,082 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 18 treesize of output 10 [2024-12-02 05:52:11,081 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 30 treesize of output 18 [2024-12-02 05:52:11,869 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 05:52:11,869 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:52:14,236 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 23 treesize of output 15 [2024-12-02 05:52:14,639 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:52:14,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098812911] [2024-12-02 05:52:14,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098812911] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:52:14,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [452049111] [2024-12-02 05:52:14,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:14,639 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 05:52:14,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 05:52:14,641 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 05:52:14,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-02 05:52:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:15,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 05:52:15,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:15,416 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 17 treesize of output 9 [2024-12-02 05:52:16,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-12-02 05:52:17,439 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 18 treesize of output 10 [2024-12-02 05:52:18,424 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 34 treesize of output 22 [2024-12-02 05:52:20,361 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 202 proven. 3 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-12-02 05:52:20,361 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:52:20,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-12-02 05:52:20,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [452049111] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:52:20,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 05:52:20,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 23 [2024-12-02 05:52:20,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925554125] [2024-12-02 05:52:20,756 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 05:52:20,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 05:52:20,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:52:20,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 05:52:20,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=873, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 05:52:20,759 INFO L87 Difference]: Start difference. First operand 89 states and 128 transitions. Second operand has 24 states, 21 states have (on average 4.714285714285714) internal successors, (99), 22 states have internal predecessors, (99), 8 states have call successors, (28), 6 states have call predecessors, (28), 8 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28) [2024-12-02 05:52:40,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:52:40,784 INFO L93 Difference]: Finished difference Result 351 states and 497 transitions. [2024-12-02 05:52:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 05:52:40,785 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 4.714285714285714) internal successors, (99), 22 states have internal predecessors, (99), 8 states have call successors, (28), 6 states have call predecessors, (28), 8 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28) Word has length 114 [2024-12-02 05:52:40,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:52:40,788 INFO L225 Difference]: With dead ends: 351 [2024-12-02 05:52:40,788 INFO L226 Difference]: Without dead ends: 265 [2024-12-02 05:52:40,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 265 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=645, Invalid=2325, Unknown=0, NotChecked=0, Total=2970 [2024-12-02 05:52:40,790 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 712 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2024-12-02 05:52:40,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 1060 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2024-12-02 05:52:40,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-12-02 05:52:40,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 212. [2024-12-02 05:52:40,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 168 states have (on average 1.3273809523809523) internal successors, (223), 169 states have internal predecessors, (223), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-12-02 05:52:40,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 297 transitions. [2024-12-02 05:52:40,824 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 297 transitions. Word has length 114 [2024-12-02 05:52:40,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:52:40,825 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 297 transitions. [2024-12-02 05:52:40,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 4.714285714285714) internal successors, (99), 22 states have internal predecessors, (99), 8 states have call successors, (28), 6 states have call predecessors, (28), 8 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28) [2024-12-02 05:52:40,825 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 297 transitions. [2024-12-02 05:52:40,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 05:52:40,827 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:52:40,827 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:52:40,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-12-02 05:52:41,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-12-02 05:52:41,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 05:52:41,228 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:52:41,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:41,229 INFO L85 PathProgramCache]: Analyzing trace with hash 220743199, now seen corresponding path program 1 times [2024-12-02 05:52:41,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:52:41,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376977687] [2024-12-02 05:52:41,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:41,230 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:41,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:52:41,231 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:52:41,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 05:52:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:41,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 05:52:41,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:41,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 05:52:41,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2024-12-02 05:52:41,527 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:52:41,527 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:52:41,527 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:52:41,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376977687] [2024-12-02 05:52:41,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376977687] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:52:41,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:52:41,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:52:41,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761866382] [2024-12-02 05:52:41,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:52:41,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:52:41,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:52:41,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:52:41,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:52:41,529 INFO L87 Difference]: Start difference. First operand 212 states and 297 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:52:41,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:52:41,936 INFO L93 Difference]: Finished difference Result 491 states and 699 transitions. [2024-12-02 05:52:41,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:52:41,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2024-12-02 05:52:41,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:52:41,941 INFO L225 Difference]: With dead ends: 491 [2024-12-02 05:52:41,941 INFO L226 Difference]: Without dead ends: 363 [2024-12-02 05:52:41,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:52:41,942 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 115 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:52:41,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 457 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:52:41,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-12-02 05:52:41,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 228. [2024-12-02 05:52:41,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 184 states have (on average 1.326086956521739) internal successors, (244), 185 states have internal predecessors, (244), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-12-02 05:52:41,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 318 transitions. [2024-12-02 05:52:41,972 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 318 transitions. Word has length 114 [2024-12-02 05:52:41,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:52:41,973 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 318 transitions. [2024-12-02 05:52:41,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:52:41,973 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 318 transitions. [2024-12-02 05:52:41,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 05:52:41,975 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:52:41,976 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:52:41,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-12-02 05:52:42,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:42,176 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:52:42,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:42,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1417211638, now seen corresponding path program 1 times [2024-12-02 05:52:42,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:52:42,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971756532] [2024-12-02 05:52:42,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:42,177 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:42,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:52:42,179 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:52:42,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-12-02 05:52:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:42,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 05:52:42,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:43,678 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:52:43,678 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 144 treesize of output 54 [2024-12-02 05:52:43,757 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-12-02 05:52:43,757 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:52:43,757 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:52:43,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971756532] [2024-12-02 05:52:43,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971756532] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:52:43,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:52:43,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 05:52:43,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181414068] [2024-12-02 05:52:43,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:52:43,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:52:43,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:52:43,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:52:43,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:52:43,759 INFO L87 Difference]: Start difference. First operand 228 states and 318 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 05:52:45,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:52:45,241 INFO L93 Difference]: Finished difference Result 682 states and 954 transitions. [2024-12-02 05:52:45,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:52:45,242 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-12-02 05:52:45,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:52:45,246 INFO L225 Difference]: With dead ends: 682 [2024-12-02 05:52:45,246 INFO L226 Difference]: Without dead ends: 540 [2024-12-02 05:52:45,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:52:45,248 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 267 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:52:45,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 1076 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 05:52:45,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-12-02 05:52:45,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 520. [2024-12-02 05:52:45,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 425 states have (on average 1.331764705882353) internal successors, (566), 431 states have internal predecessors, (566), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 74 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 05:52:45,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 726 transitions. [2024-12-02 05:52:45,301 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 726 transitions. Word has length 116 [2024-12-02 05:52:45,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:52:45,301 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 726 transitions. [2024-12-02 05:52:45,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 05:52:45,302 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 726 transitions. [2024-12-02 05:52:45,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 05:52:45,304 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:52:45,304 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:52:45,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-12-02 05:52:45,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:45,504 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:52:45,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:45,505 INFO L85 PathProgramCache]: Analyzing trace with hash 407816570, now seen corresponding path program 1 times [2024-12-02 05:52:45,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:52:45,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296274557] [2024-12-02 05:52:45,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:45,505 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:45,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:52:45,507 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:52:45,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-12-02 05:52:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:45,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 05:52:45,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:45,757 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 23 treesize of output 11 [2024-12-02 05:52:45,855 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:52:45,856 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:52:45,856 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:52:45,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296274557] [2024-12-02 05:52:45,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296274557] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:52:45,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:52:45,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:52:45,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39900107] [2024-12-02 05:52:45,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:52:45,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:52:45,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:52:45,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:52:45,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:52:45,858 INFO L87 Difference]: Start difference. First operand 520 states and 726 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:52:47,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:52:47,526 INFO L93 Difference]: Finished difference Result 1032 states and 1450 transitions. [2024-12-02 05:52:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:52:47,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2024-12-02 05:52:47,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:52:47,531 INFO L225 Difference]: With dead ends: 1032 [2024-12-02 05:52:47,531 INFO L226 Difference]: Without dead ends: 688 [2024-12-02 05:52:47,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:52:47,533 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 80 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 05:52:47,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 408 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 05:52:47,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-12-02 05:52:47,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 520. [2024-12-02 05:52:47,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 425 states have (on average 1.3247058823529412) internal successors, (563), 431 states have internal predecessors, (563), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 74 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 05:52:47,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 723 transitions. [2024-12-02 05:52:47,591 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 723 transitions. Word has length 116 [2024-12-02 05:52:47,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:52:47,592 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 723 transitions. [2024-12-02 05:52:47,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:52:47,592 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 723 transitions. [2024-12-02 05:52:47,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 05:52:47,594 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:52:47,594 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:52:47,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-12-02 05:52:47,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:47,795 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:52:47,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:47,795 INFO L85 PathProgramCache]: Analyzing trace with hash 14789560, now seen corresponding path program 1 times [2024-12-02 05:52:47,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:52:47,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599468825] [2024-12-02 05:52:47,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:47,796 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:47,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:52:47,797 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:52:47,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-12-02 05:52:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:47,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 05:52:48,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:48,040 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:52:48,041 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:52:48,041 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:52:48,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [599468825] [2024-12-02 05:52:48,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [599468825] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:52:48,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:52:48,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:52:48,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712848247] [2024-12-02 05:52:48,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:52:48,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:52:48,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:52:48,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:52:48,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:52:48,042 INFO L87 Difference]: Start difference. First operand 520 states and 723 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:52:48,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:52:48,152 INFO L93 Difference]: Finished difference Result 927 states and 1302 transitions. [2024-12-02 05:52:48,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:52:48,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2024-12-02 05:52:48,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:52:48,156 INFO L225 Difference]: With dead ends: 927 [2024-12-02 05:52:48,156 INFO L226 Difference]: Without dead ends: 535 [2024-12-02 05:52:48,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:52:48,157 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:52:48,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 488 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:52:48,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-12-02 05:52:48,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2024-12-02 05:52:48,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 440 states have (on average 1.3136363636363637) internal successors, (578), 446 states have internal predecessors, (578), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 74 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 05:52:48,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 738 transitions. [2024-12-02 05:52:48,213 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 738 transitions. Word has length 116 [2024-12-02 05:52:48,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:52:48,213 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 738 transitions. [2024-12-02 05:52:48,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:52:48,213 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 738 transitions. [2024-12-02 05:52:48,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 05:52:48,215 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:52:48,215 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:52:48,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-12-02 05:52:48,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:48,415 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:52:48,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:48,416 INFO L85 PathProgramCache]: Analyzing trace with hash 316892812, now seen corresponding path program 1 times [2024-12-02 05:52:48,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:52:48,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465844372] [2024-12-02 05:52:48,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:48,416 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:48,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:52:48,418 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:52:48,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-12-02 05:52:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:48,579 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 05:52:48,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:48,604 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-12-02 05:52:48,604 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:52:48,604 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:52:48,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465844372] [2024-12-02 05:52:48,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [465844372] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:52:48,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:52:48,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:52:48,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070231561] [2024-12-02 05:52:48,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:52:48,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:52:48,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:52:48,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:52:48,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:52:48,605 INFO L87 Difference]: Start difference. First operand 535 states and 738 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 05:52:48,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:52:48,684 INFO L93 Difference]: Finished difference Result 993 states and 1375 transitions. [2024-12-02 05:52:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:52:48,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-12-02 05:52:48,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:52:48,687 INFO L225 Difference]: With dead ends: 993 [2024-12-02 05:52:48,687 INFO L226 Difference]: Without dead ends: 535 [2024-12-02 05:52:48,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:52:48,688 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:52:48,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 370 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:52:48,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-12-02 05:52:48,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2024-12-02 05:52:48,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 440 states have (on average 1.3068181818181819) internal successors, (575), 446 states have internal predecessors, (575), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 74 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 05:52:48,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 735 transitions. [2024-12-02 05:52:48,728 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 735 transitions. Word has length 116 [2024-12-02 05:52:48,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:52:48,728 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 735 transitions. [2024-12-02 05:52:48,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 05:52:48,728 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 735 transitions. [2024-12-02 05:52:48,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 05:52:48,729 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:52:48,729 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:52:48,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-12-02 05:52:48,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:48,930 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:52:48,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:48,930 INFO L85 PathProgramCache]: Analyzing trace with hash 298100019, now seen corresponding path program 1 times [2024-12-02 05:52:48,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:52:48,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902978015] [2024-12-02 05:52:48,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:48,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:48,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:52:48,932 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:52:48,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-12-02 05:52:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:49,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 05:52:49,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:49,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 05:52:49,441 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:52:49,441 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:52:49,441 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:52:49,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902978015] [2024-12-02 05:52:49,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902978015] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:52:49,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:52:49,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:52:49,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915568642] [2024-12-02 05:52:49,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:52:49,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:52:49,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:52:49,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:52:49,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:52:49,443 INFO L87 Difference]: Start difference. First operand 535 states and 735 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:52:49,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:52:49,867 INFO L93 Difference]: Finished difference Result 1593 states and 2212 transitions. [2024-12-02 05:52:49,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:52:49,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2024-12-02 05:52:49,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:52:49,872 INFO L225 Difference]: With dead ends: 1593 [2024-12-02 05:52:49,872 INFO L226 Difference]: Without dead ends: 1186 [2024-12-02 05:52:49,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:52:49,873 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 237 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:52:49,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 333 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:52:49,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2024-12-02 05:52:49,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 1110. [2024-12-02 05:52:49,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 963 states have (on average 1.343717549325026) internal successors, (1294), 973 states have internal predecessors, (1294), 126 states have call successors, (126), 20 states have call predecessors, (126), 20 states have return successors, (126), 116 states have call predecessors, (126), 126 states have call successors, (126) [2024-12-02 05:52:49,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1546 transitions. [2024-12-02 05:52:49,952 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1546 transitions. Word has length 117 [2024-12-02 05:52:49,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:52:49,952 INFO L471 AbstractCegarLoop]: Abstraction has 1110 states and 1546 transitions. [2024-12-02 05:52:49,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:52:49,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1546 transitions. [2024-12-02 05:52:49,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 05:52:49,954 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:52:49,954 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:52:49,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-12-02 05:52:50,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:50,155 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:52:50,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:50,155 INFO L85 PathProgramCache]: Analyzing trace with hash 2103538353, now seen corresponding path program 1 times [2024-12-02 05:52:50,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:52:50,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17272088] [2024-12-02 05:52:50,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:50,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:50,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:52:50,158 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:52:50,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-12-02 05:52:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:50,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 05:52:50,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:50,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 05:52:50,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2024-12-02 05:52:50,978 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:52:50,979 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 43 treesize of output 41 [2024-12-02 05:52:52,528 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:52:52,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 44 [2024-12-02 05:52:52,623 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:52:52,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 55 [2024-12-02 05:52:52,855 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:52:52,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 48 [2024-12-02 05:52:52,971 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 108 proven. 72 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-12-02 05:52:52,972 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:52:53,261 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:52:53,261 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:52:53,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17272088] [2024-12-02 05:52:53,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17272088] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:52:53,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:52:53,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 18 [2024-12-02 05:52:53,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034491876] [2024-12-02 05:52:53,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:52:53,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:52:53,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:52:53,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:52:53,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-12-02 05:52:53,263 INFO L87 Difference]: Start difference. First operand 1110 states and 1546 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:52:53,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:52:53,777 INFO L93 Difference]: Finished difference Result 2110 states and 2954 transitions. [2024-12-02 05:52:53,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 05:52:53,777 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2024-12-02 05:52:53,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:52:53,780 INFO L225 Difference]: With dead ends: 2110 [2024-12-02 05:52:53,780 INFO L226 Difference]: Without dead ends: 1132 [2024-12-02 05:52:53,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-12-02 05:52:53,782 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 43 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 05:52:53,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 694 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 05:52:53,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2024-12-02 05:52:53,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1100. [2024-12-02 05:52:53,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 953 states have (on average 1.347324239244491) internal successors, (1284), 963 states have internal predecessors, (1284), 126 states have call successors, (126), 20 states have call predecessors, (126), 20 states have return successors, (126), 116 states have call predecessors, (126), 126 states have call successors, (126) [2024-12-02 05:52:53,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1536 transitions. [2024-12-02 05:52:53,833 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1536 transitions. Word has length 117 [2024-12-02 05:52:53,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:52:53,834 INFO L471 AbstractCegarLoop]: Abstraction has 1100 states and 1536 transitions. [2024-12-02 05:52:53,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:52:53,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1536 transitions. [2024-12-02 05:52:53,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 05:52:53,836 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:52:53,836 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:52:53,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-12-02 05:52:54,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:54,036 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:52:54,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:54,037 INFO L85 PathProgramCache]: Analyzing trace with hash -185295277, now seen corresponding path program 1 times [2024-12-02 05:52:54,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:52:54,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540742216] [2024-12-02 05:52:54,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:54,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:54,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:52:54,039 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:52:54,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-12-02 05:52:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:54,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 05:52:54,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:54,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 05:52:55,236 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 18 treesize of output 10 [2024-12-02 05:52:57,398 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 05:52:57,398 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:52:58,153 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:52:58,153 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:52:58,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540742216] [2024-12-02 05:52:58,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1540742216] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:52:58,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:52:58,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 20 [2024-12-02 05:52:58,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437060739] [2024-12-02 05:52:58,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:52:58,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:52:58,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:52:58,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:52:58,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-12-02 05:52:58,155 INFO L87 Difference]: Start difference. First operand 1100 states and 1536 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:52:58,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:52:58,649 INFO L93 Difference]: Finished difference Result 2938 states and 4112 transitions. [2024-12-02 05:52:58,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:52:58,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-12-02 05:52:58,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:52:58,654 INFO L225 Difference]: With dead ends: 2938 [2024-12-02 05:52:58,654 INFO L226 Difference]: Without dead ends: 1970 [2024-12-02 05:52:58,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-12-02 05:52:58,656 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 132 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 05:52:58,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 404 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 05:52:58,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2024-12-02 05:52:58,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1486. [2024-12-02 05:52:58,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1339 states have (on average 1.368185212845407) internal successors, (1832), 1349 states have internal predecessors, (1832), 126 states have call successors, (126), 20 states have call predecessors, (126), 20 states have return successors, (126), 116 states have call predecessors, (126), 126 states have call successors, (126) [2024-12-02 05:52:58,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 2084 transitions. [2024-12-02 05:52:58,711 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 2084 transitions. Word has length 118 [2024-12-02 05:52:58,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:52:58,711 INFO L471 AbstractCegarLoop]: Abstraction has 1486 states and 2084 transitions. [2024-12-02 05:52:58,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:52:58,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 2084 transitions. [2024-12-02 05:52:58,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 05:52:58,713 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:52:58,713 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:52:58,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-12-02 05:52:58,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:58,914 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:52:58,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:58,914 INFO L85 PathProgramCache]: Analyzing trace with hash -994641903, now seen corresponding path program 1 times [2024-12-02 05:52:58,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:52:58,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [734991595] [2024-12-02 05:52:58,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:58,915 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:58,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:52:58,916 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:52:58,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-12-02 05:52:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:59,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 05:52:59,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:59,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 05:52:59,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2024-12-02 05:52:59,280 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:52:59,280 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:52:59,280 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:52:59,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [734991595] [2024-12-02 05:52:59,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [734991595] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:52:59,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:52:59,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 05:52:59,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187973626] [2024-12-02 05:52:59,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:52:59,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:52:59,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:52:59,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:52:59,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:52:59,281 INFO L87 Difference]: Start difference. First operand 1486 states and 2084 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:52:59,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:52:59,629 INFO L93 Difference]: Finished difference Result 3189 states and 4487 transitions. [2024-12-02 05:52:59,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:52:59,630 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-12-02 05:52:59,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:52:59,634 INFO L225 Difference]: With dead ends: 3189 [2024-12-02 05:52:59,635 INFO L226 Difference]: Without dead ends: 1845 [2024-12-02 05:52:59,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:52:59,637 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 111 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:52:59,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 885 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:52:59,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2024-12-02 05:52:59,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1771. [2024-12-02 05:52:59,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1771 states, 1552 states have (on average 1.3421391752577319) internal successors, (2083), 1569 states have internal predecessors, (2083), 188 states have call successors, (188), 30 states have call predecessors, (188), 30 states have return successors, (188), 171 states have call predecessors, (188), 188 states have call successors, (188) [2024-12-02 05:52:59,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1771 states to 1771 states and 2459 transitions. [2024-12-02 05:52:59,720 INFO L78 Accepts]: Start accepts. Automaton has 1771 states and 2459 transitions. Word has length 118 [2024-12-02 05:52:59,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:52:59,720 INFO L471 AbstractCegarLoop]: Abstraction has 1771 states and 2459 transitions. [2024-12-02 05:52:59,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:52:59,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1771 states and 2459 transitions. [2024-12-02 05:52:59,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 05:52:59,722 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:52:59,722 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:52:59,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-12-02 05:52:59,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:59,922 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:52:59,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:59,923 INFO L85 PathProgramCache]: Analyzing trace with hash -434022304, now seen corresponding path program 1 times [2024-12-02 05:52:59,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:52:59,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397355948] [2024-12-02 05:52:59,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:59,923 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:52:59,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:52:59,924 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:52:59,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-12-02 05:53:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:53:00,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 05:53:00,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:53:00,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 05:53:00,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2024-12-02 05:53:00,274 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:53:00,274 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:53:00,274 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:53:00,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397355948] [2024-12-02 05:53:00,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397355948] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:53:00,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:53:00,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 05:53:00,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398563870] [2024-12-02 05:53:00,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:53:00,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 05:53:00,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:53:00,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 05:53:00,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:53:00,275 INFO L87 Difference]: Start difference. First operand 1771 states and 2459 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:53:00,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:53:00,949 INFO L93 Difference]: Finished difference Result 3498 states and 4860 transitions. [2024-12-02 05:53:00,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 05:53:00,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-12-02 05:53:00,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:53:00,954 INFO L225 Difference]: With dead ends: 3498 [2024-12-02 05:53:00,954 INFO L226 Difference]: Without dead ends: 1869 [2024-12-02 05:53:00,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:53:00,956 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 114 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 05:53:00,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 680 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 05:53:00,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1869 states. [2024-12-02 05:53:01,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1869 to 1835. [2024-12-02 05:53:01,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1616 states have (on average 1.328589108910891) internal successors, (2147), 1633 states have internal predecessors, (2147), 188 states have call successors, (188), 30 states have call predecessors, (188), 30 states have return successors, (188), 171 states have call predecessors, (188), 188 states have call successors, (188) [2024-12-02 05:53:01,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2523 transitions. [2024-12-02 05:53:01,045 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2523 transitions. Word has length 118 [2024-12-02 05:53:01,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:53:01,045 INFO L471 AbstractCegarLoop]: Abstraction has 1835 states and 2523 transitions. [2024-12-02 05:53:01,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:53:01,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2523 transitions. [2024-12-02 05:53:01,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 05:53:01,046 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:53:01,046 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:53:01,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-12-02 05:53:01,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:53:01,247 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:53:01,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:53:01,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1020828318, now seen corresponding path program 1 times [2024-12-02 05:53:01,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:53:01,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775097321] [2024-12-02 05:53:01,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:53:01,248 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:53:01,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:53:01,249 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:53:01,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-12-02 05:53:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:53:01,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 05:53:01,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:53:02,738 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:53:02,739 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 145 treesize of output 55 [2024-12-02 05:53:07,137 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-12-02 05:53:07,137 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:53:07,137 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:53:07,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775097321] [2024-12-02 05:53:07,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775097321] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:53:07,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:53:07,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 05:53:07,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126102010] [2024-12-02 05:53:07,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:53:07,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:53:07,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:53:07,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:53:07,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:53:07,139 INFO L87 Difference]: Start difference. First operand 1835 states and 2523 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 05:53:11,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 05:53:16,597 WARN L539 Checker$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] [2024-12-02 05:53:18,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 05:53:19,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 05:53:26,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 05:53:27,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 05:53:28,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 05:53:32,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 05:53:36,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 05:53:37,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 05:53:45,364 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] [2024-12-02 05:53:45,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:53:45,852 INFO L93 Difference]: Finished difference Result 3437 states and 4714 transitions. [2024-12-02 05:53:45,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:53:45,855 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2024-12-02 05:53:45,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:53:45,861 INFO L225 Difference]: With dead ends: 3437 [2024-12-02 05:53:45,861 INFO L226 Difference]: Without dead ends: 1744 [2024-12-02 05:53:45,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:53:45,863 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 278 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 14 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:53:45,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 544 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 210 Invalid, 4 Unknown, 0 Unchecked, 38.3s Time] [2024-12-02 05:53:45,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2024-12-02 05:53:45,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1584. [2024-12-02 05:53:45,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1382 states have (on average 1.3205499276411) internal successors, (1825), 1396 states have internal predecessors, (1825), 170 states have call successors, (170), 31 states have call predecessors, (170), 31 states have return successors, (170), 156 states have call predecessors, (170), 170 states have call successors, (170) [2024-12-02 05:53:45,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2165 transitions. [2024-12-02 05:53:45,929 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2165 transitions. Word has length 118 [2024-12-02 05:53:45,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:53:45,930 INFO L471 AbstractCegarLoop]: Abstraction has 1584 states and 2165 transitions. [2024-12-02 05:53:45,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 05:53:45,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2165 transitions. [2024-12-02 05:53:45,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 05:53:45,931 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:53:45,931 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:53:45,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-12-02 05:53:46,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:53:46,132 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:53:46,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:53:46,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1503648465, now seen corresponding path program 1 times [2024-12-02 05:53:46,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:53:46,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813472137] [2024-12-02 05:53:46,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:53:46,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:53:46,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:53:46,134 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:53:46,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-12-02 05:53:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:53:46,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 05:53:46,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:53:46,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 05:53:46,393 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 23 treesize of output 23 [2024-12-02 05:53:46,483 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:53:46,483 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 72 treesize of output 42 [2024-12-02 05:53:46,555 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:53:46,555 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:53:46,555 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:53:46,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813472137] [2024-12-02 05:53:46,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813472137] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:53:46,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:53:46,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 05:53:46,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911139206] [2024-12-02 05:53:46,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:53:46,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:53:46,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:53:46,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:53:46,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:53:46,556 INFO L87 Difference]: Start difference. First operand 1584 states and 2165 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:53:46,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:53:46,900 INFO L93 Difference]: Finished difference Result 3088 states and 4225 transitions. [2024-12-02 05:53:46,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:53:46,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-12-02 05:53:46,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:53:46,904 INFO L225 Difference]: With dead ends: 3088 [2024-12-02 05:53:46,904 INFO L226 Difference]: Without dead ends: 1650 [2024-12-02 05:53:46,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:53:46,906 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 88 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:53:46,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 927 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:53:46,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2024-12-02 05:53:47,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1648. [2024-12-02 05:53:47,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1442 states have (on average 1.3072122052704578) internal successors, (1885), 1456 states have internal predecessors, (1885), 170 states have call successors, (170), 35 states have call predecessors, (170), 35 states have return successors, (170), 156 states have call predecessors, (170), 170 states have call successors, (170) [2024-12-02 05:53:47,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2225 transitions. [2024-12-02 05:53:47,036 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2225 transitions. Word has length 118 [2024-12-02 05:53:47,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:53:47,036 INFO L471 AbstractCegarLoop]: Abstraction has 1648 states and 2225 transitions. [2024-12-02 05:53:47,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:53:47,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2225 transitions. [2024-12-02 05:53:47,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 05:53:47,038 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:53:47,038 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:53:47,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-12-02 05:53:47,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:53:47,238 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:53:47,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:53:47,239 INFO L85 PathProgramCache]: Analyzing trace with hash 694301839, now seen corresponding path program 1 times [2024-12-02 05:53:47,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:53:47,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918502235] [2024-12-02 05:53:47,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:53:47,239 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:53:47,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:53:47,241 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:53:47,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-12-02 05:53:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:53:47,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 05:53:47,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:53:47,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 05:53:48,503 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 18 treesize of output 10 [2024-12-02 05:53:52,170 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:53:52,171 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 71 treesize of output 37 [2024-12-02 05:53:53,655 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 05:53:53,655 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:53:54,717 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:53:54,717 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:53:54,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918502235] [2024-12-02 05:53:54,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [918502235] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:53:54,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:53:54,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-12-02 05:53:54,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256647984] [2024-12-02 05:53:54,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:53:54,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:53:54,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:53:54,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:53:54,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-12-02 05:53:54,719 INFO L87 Difference]: Start difference. First operand 1648 states and 2225 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:53:55,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:53:55,293 INFO L93 Difference]: Finished difference Result 3152 states and 4265 transitions. [2024-12-02 05:53:55,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:53:55,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-12-02 05:53:55,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:53:55,298 INFO L225 Difference]: With dead ends: 3152 [2024-12-02 05:53:55,298 INFO L226 Difference]: Without dead ends: 1650 [2024-12-02 05:53:55,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 214 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2024-12-02 05:53:55,301 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 77 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 05:53:55,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 507 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 05:53:55,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2024-12-02 05:53:55,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1404. [2024-12-02 05:53:55,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1236 states have (on average 1.3131067961165048) internal successors, (1623), 1244 states have internal predecessors, (1623), 134 states have call successors, (134), 33 states have call predecessors, (134), 33 states have return successors, (134), 126 states have call predecessors, (134), 134 states have call successors, (134) [2024-12-02 05:53:55,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1891 transitions. [2024-12-02 05:53:55,375 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1891 transitions. Word has length 118 [2024-12-02 05:53:55,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:53:55,375 INFO L471 AbstractCegarLoop]: Abstraction has 1404 states and 1891 transitions. [2024-12-02 05:53:55,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:53:55,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1891 transitions. [2024-12-02 05:53:55,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 05:53:55,377 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:53:55,377 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:53:55,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-12-02 05:53:55,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:53:55,577 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:53:55,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:53:55,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1461470510, now seen corresponding path program 1 times [2024-12-02 05:53:55,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:53:55,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953708304] [2024-12-02 05:53:55,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:53:55,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:53:55,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:53:55,580 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:53:55,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-12-02 05:53:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:53:55,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 05:53:55,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:53:56,103 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:53:56,103 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 157 treesize of output 67 [2024-12-02 05:53:56,226 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 196 proven. 24 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 05:53:56,226 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:53:56,593 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:53:56,594 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 101 treesize of output 1 [2024-12-02 05:53:56,639 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 05:53:56,639 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:53:56,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953708304] [2024-12-02 05:53:56,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953708304] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 05:53:56,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 05:53:56,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2024-12-02 05:53:56,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748573359] [2024-12-02 05:53:56,639 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 05:53:56,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 05:53:56,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:53:56,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 05:53:56,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-12-02 05:53:56,641 INFO L87 Difference]: Start difference. First operand 1404 states and 1891 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2024-12-02 05:53:58,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:53:58,020 INFO L93 Difference]: Finished difference Result 2190 states and 2920 transitions. [2024-12-02 05:53:58,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 05:53:58,021 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 118 [2024-12-02 05:53:58,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:53:58,023 INFO L225 Difference]: With dead ends: 2190 [2024-12-02 05:53:58,023 INFO L226 Difference]: Without dead ends: 763 [2024-12-02 05:53:58,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2024-12-02 05:53:58,025 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 107 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 05:53:58,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 662 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 05:53:58,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-12-02 05:53:58,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 743. [2024-12-02 05:53:58,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 653 states have (on average 1.2817764165390506) internal successors, (837), 655 states have internal predecessors, (837), 70 states have call successors, (70), 19 states have call predecessors, (70), 19 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 05:53:58,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 977 transitions. [2024-12-02 05:53:58,087 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 977 transitions. Word has length 118 [2024-12-02 05:53:58,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:53:58,087 INFO L471 AbstractCegarLoop]: Abstraction has 743 states and 977 transitions. [2024-12-02 05:53:58,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2024-12-02 05:53:58,087 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 977 transitions. [2024-12-02 05:53:58,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 05:53:58,088 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:53:58,088 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:53:58,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-12-02 05:53:58,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:53:58,289 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:53:58,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:53:58,289 INFO L85 PathProgramCache]: Analyzing trace with hash 349099979, now seen corresponding path program 1 times [2024-12-02 05:53:58,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:53:58,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554615496] [2024-12-02 05:53:58,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:53:58,290 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:53:58,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:53:58,292 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:53:58,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-12-02 05:53:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:53:58,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 05:53:58,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:53:58,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-12-02 05:53:58,976 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 183 proven. 24 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-12-02 05:53:58,976 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:53:59,517 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 05:53:59,517 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:53:59,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554615496] [2024-12-02 05:53:59,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554615496] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 05:53:59,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 05:53:59,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-12-02 05:53:59,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916012735] [2024-12-02 05:53:59,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 05:53:59,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 05:53:59,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:53:59,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 05:53:59,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:53:59,519 INFO L87 Difference]: Start difference. First operand 743 states and 977 transitions. Second operand has 11 states, 9 states have (on average 7.222222222222222) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 05:54:00,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:54:00,428 INFO L93 Difference]: Finished difference Result 1301 states and 1682 transitions. [2024-12-02 05:54:00,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 05:54:00,429 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.222222222222222) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) Word has length 120 [2024-12-02 05:54:00,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:54:00,431 INFO L225 Difference]: With dead ends: 1301 [2024-12-02 05:54:00,431 INFO L226 Difference]: Without dead ends: 639 [2024-12-02 05:54:00,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 228 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-12-02 05:54:00,432 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 72 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 05:54:00,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 392 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 05:54:00,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-12-02 05:54:00,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 609. [2024-12-02 05:54:00,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 514 states have (on average 1.2295719844357977) internal successors, (632), 516 states have internal predecessors, (632), 70 states have call successors, (70), 24 states have call predecessors, (70), 24 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 05:54:00,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 772 transitions. [2024-12-02 05:54:00,481 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 772 transitions. Word has length 120 [2024-12-02 05:54:00,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:54:00,482 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 772 transitions. [2024-12-02 05:54:00,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.222222222222222) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 05:54:00,482 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 772 transitions. [2024-12-02 05:54:00,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 05:54:00,482 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:54:00,482 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:54:00,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-12-02 05:54:00,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:54:00,683 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:54:00,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:54:00,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1358607819, now seen corresponding path program 1 times [2024-12-02 05:54:00,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:54:00,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [245119373] [2024-12-02 05:54:00,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:54:00,684 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:54:00,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:54:00,685 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:54:00,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-12-02 05:54:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:54:00,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 05:54:00,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:54:01,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 05:54:02,025 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 18 treesize of output 10 [2024-12-02 05:54:05,725 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:54:05,725 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 80 treesize of output 42 [2024-12-02 05:54:08,022 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 05:54:08,022 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:54:22,771 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 31 treesize of output 23 [2024-12-02 05:54:27,178 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:54:27,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [245119373] [2024-12-02 05:54:27,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [245119373] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:54:27,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [614170322] [2024-12-02 05:54:27,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:54:27,179 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 05:54:27,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 05:54:27,181 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 05:54:27,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-12-02 05:54:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:54:28,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 05:54:28,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:54:28,949 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 17 treesize of output 9 [2024-12-02 05:54:30,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 05:54:36,796 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 18 treesize of output 10 [2024-12-02 05:54:41,015 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 05:54:41,015 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:54:51,293 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 31 treesize of output 23 [2024-12-02 05:54:53,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [614170322] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:54:53,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 05:54:53,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14] total 30 [2024-12-02 05:54:53,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647283342] [2024-12-02 05:54:53,385 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 05:54:53,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 05:54:53,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:54:53,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 05:54:53,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=1839, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 05:54:53,388 INFO L87 Difference]: Start difference. First operand 609 states and 772 transitions. Second operand has 31 states, 27 states have (on average 3.925925925925926) internal successors, (106), 28 states have internal predecessors, (106), 8 states have call successors, (28), 6 states have call predecessors, (28), 8 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28) [2024-12-02 05:56:08,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 05:56:09,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 05:56:11,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 05:56:15,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:15,098 INFO L93 Difference]: Finished difference Result 1516 states and 1917 transitions. [2024-12-02 05:56:15,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-12-02 05:56:15,099 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 27 states have (on average 3.925925925925926) internal successors, (106), 28 states have internal predecessors, (106), 8 states have call successors, (28), 6 states have call predecessors, (28), 8 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28) Word has length 120 [2024-12-02 05:56:15,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:15,102 INFO L225 Difference]: With dead ends: 1516 [2024-12-02 05:56:15,102 INFO L226 Difference]: Without dead ends: 988 [2024-12-02 05:56:15,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 276 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1676 ImplicationChecksByTransitivity, 81.0s TimeCoverageRelationStatistics Valid=994, Invalid=4704, Unknown=2, NotChecked=0, Total=5700 [2024-12-02 05:56:15,104 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 983 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.7s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:15,104 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 1523 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 39.7s Time] [2024-12-02 05:56:15,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2024-12-02 05:56:15,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 605. [2024-12-02 05:56:15,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 510 states have (on average 1.227450980392157) internal successors, (626), 512 states have internal predecessors, (626), 70 states have call successors, (70), 24 states have call predecessors, (70), 24 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 05:56:15,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 766 transitions. [2024-12-02 05:56:15,159 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 766 transitions. Word has length 120 [2024-12-02 05:56:15,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:15,159 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 766 transitions. [2024-12-02 05:56:15,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 27 states have (on average 3.925925925925926) internal successors, (106), 28 states have internal predecessors, (106), 8 states have call successors, (28), 6 states have call predecessors, (28), 8 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28) [2024-12-02 05:56:15,160 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 766 transitions. [2024-12-02 05:56:15,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 05:56:15,160 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:15,160 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:56:15,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2024-12-02 05:56:15,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-12-02 05:56:15,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:56:15,561 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:15,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:15,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1247415735, now seen corresponding path program 1 times [2024-12-02 05:56:15,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:56:15,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737142532] [2024-12-02 05:56:15,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:15,562 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:56:15,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:56:15,563 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:56:15,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-12-02 05:56:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:15,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 05:56:15,820 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:56:15,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 05:56:16,449 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:56:16,449 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 33 treesize of output 35 [2024-12-02 05:56:16,640 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:56:16,640 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 [2024-12-02 05:56:16,731 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 183 proven. 24 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-12-02 05:56:16,731 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:56:17,647 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 05:56:17,648 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:56:17,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737142532] [2024-12-02 05:56:17,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737142532] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 05:56:17,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 05:56:17,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2024-12-02 05:56:17,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440455930] [2024-12-02 05:56:17,648 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 05:56:17,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 05:56:17,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:56:17,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 05:56:17,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 05:56:17,650 INFO L87 Difference]: Start difference. First operand 605 states and 766 transitions. Second operand has 12 states, 10 states have (on average 7.2) internal successors, (72), 12 states have internal predecessors, (72), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 05:56:19,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:19,696 INFO L93 Difference]: Finished difference Result 1373 states and 1755 transitions. [2024-12-02 05:56:19,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 05:56:19,697 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.2) internal successors, (72), 12 states have internal predecessors, (72), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) Word has length 120 [2024-12-02 05:56:19,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:19,699 INFO L225 Difference]: With dead ends: 1373 [2024-12-02 05:56:19,699 INFO L226 Difference]: Without dead ends: 849 [2024-12-02 05:56:19,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 227 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2024-12-02 05:56:19,700 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 273 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:19,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 586 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 05:56:19,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-12-02 05:56:19,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 815. [2024-12-02 05:56:19,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 714 states have (on average 1.2436974789915967) internal successors, (888), 718 states have internal predecessors, (888), 74 states have call successors, (74), 26 states have call predecessors, (74), 26 states have return successors, (74), 70 states have call predecessors, (74), 74 states have call successors, (74) [2024-12-02 05:56:19,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1036 transitions. [2024-12-02 05:56:19,758 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1036 transitions. Word has length 120 [2024-12-02 05:56:19,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:19,758 INFO L471 AbstractCegarLoop]: Abstraction has 815 states and 1036 transitions. [2024-12-02 05:56:19,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.2) internal successors, (72), 12 states have internal predecessors, (72), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 05:56:19,758 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1036 transitions. [2024-12-02 05:56:19,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 05:56:19,759 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:19,759 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:56:19,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-12-02 05:56:19,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:56:19,959 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:19,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:19,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1834221749, now seen corresponding path program 1 times [2024-12-02 05:56:19,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:56:19,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246728168] [2024-12-02 05:56:19,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:19,960 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:56:19,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:56:19,961 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:56:19,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-12-02 05:56:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:20,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 05:56:20,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:56:20,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 05:56:20,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-12-02 05:56:22,613 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:56:22,613 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 53 treesize of output 43 [2024-12-02 05:56:23,028 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:56:23,029 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 97 treesize of output 43 [2024-12-02 05:56:23,333 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 149 proven. 30 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2024-12-02 05:56:23,333 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:56:24,044 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:56:24,044 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:56:24,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246728168] [2024-12-02 05:56:24,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246728168] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:56:24,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:56:24,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 17 [2024-12-02 05:56:24,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913290626] [2024-12-02 05:56:24,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:24,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 05:56:24,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:56:24,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 05:56:24,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-12-02 05:56:24,046 INFO L87 Difference]: Start difference. First operand 815 states and 1036 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:56:24,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:24,997 INFO L93 Difference]: Finished difference Result 1573 states and 2007 transitions. [2024-12-02 05:56:24,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 05:56:24,998 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-12-02 05:56:24,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:25,002 INFO L225 Difference]: With dead ends: 1573 [2024-12-02 05:56:25,002 INFO L226 Difference]: Without dead ends: 843 [2024-12-02 05:56:25,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-12-02 05:56:25,004 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 52 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:25,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 836 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 05:56:25,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2024-12-02 05:56:25,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 839. [2024-12-02 05:56:25,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 738 states have (on average 1.2357723577235773) internal successors, (912), 742 states have internal predecessors, (912), 74 states have call successors, (74), 26 states have call predecessors, (74), 26 states have return successors, (74), 70 states have call predecessors, (74), 74 states have call successors, (74) [2024-12-02 05:56:25,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1060 transitions. [2024-12-02 05:56:25,057 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1060 transitions. Word has length 120 [2024-12-02 05:56:25,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:25,057 INFO L471 AbstractCegarLoop]: Abstraction has 839 states and 1060 transitions. [2024-12-02 05:56:25,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:56:25,057 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1060 transitions. [2024-12-02 05:56:25,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 05:56:25,058 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:25,058 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:56:25,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-12-02 05:56:25,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:56:25,258 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:25,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:25,258 INFO L85 PathProgramCache]: Analyzing trace with hash -626146711, now seen corresponding path program 1 times [2024-12-02 05:56:25,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:56:25,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283137725] [2024-12-02 05:56:25,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:25,259 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:56:25,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:56:25,260 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:56:25,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-12-02 05:56:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:25,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 05:56:25,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:56:25,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 05:56:27,122 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 18 treesize of output 10 [2024-12-02 05:56:41,471 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:56:41,471 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 99 treesize of output 49 [2024-12-02 05:56:44,337 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 05:56:44,337 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:56:54,711 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:56:54,711 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:56:54,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283137725] [2024-12-02 05:56:54,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283137725] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:56:54,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:56:54,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [22] total 31 [2024-12-02 05:56:54,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921514991] [2024-12-02 05:56:54,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:54,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:56:54,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:56:54,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:56:54,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=801, Unknown=0, NotChecked=0, Total=930 [2024-12-02 05:56:54,713 INFO L87 Difference]: Start difference. First operand 839 states and 1060 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:57:04,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:04,217 INFO L93 Difference]: Finished difference Result 1855 states and 2360 transitions. [2024-12-02 05:57:04,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 05:57:04,222 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-12-02 05:57:04,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:04,226 INFO L225 Difference]: With dead ends: 1855 [2024-12-02 05:57:04,226 INFO L226 Difference]: Without dead ends: 1101 [2024-12-02 05:57:04,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 207 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 25.1s TimeCoverageRelationStatistics Valid=166, Invalid=956, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 05:57:04,228 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 346 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:04,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 819 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-12-02 05:57:04,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2024-12-02 05:57:04,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 863. [2024-12-02 05:57:04,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 762 states have (on average 1.2335958005249343) internal successors, (940), 766 states have internal predecessors, (940), 74 states have call successors, (74), 26 states have call predecessors, (74), 26 states have return successors, (74), 70 states have call predecessors, (74), 74 states have call successors, (74) [2024-12-02 05:57:04,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1088 transitions. [2024-12-02 05:57:04,293 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1088 transitions. Word has length 120 [2024-12-02 05:57:04,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:04,293 INFO L471 AbstractCegarLoop]: Abstraction has 863 states and 1088 transitions. [2024-12-02 05:57:04,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:57:04,293 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1088 transitions. [2024-12-02 05:57:04,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 05:57:04,294 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:04,294 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:04,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-12-02 05:57:04,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:57:04,495 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:04,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:04,495 INFO L85 PathProgramCache]: Analyzing trace with hash 404544067, now seen corresponding path program 1 times [2024-12-02 05:57:04,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:04,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405560455] [2024-12-02 05:57:04,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:04,495 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:57:04,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:04,497 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:57:04,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-12-02 05:57:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:04,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 05:57:04,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:04,873 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:57:04,874 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:57:04,874 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:04,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405560455] [2024-12-02 05:57:04,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1405560455] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:04,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:04,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 05:57:04,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395701028] [2024-12-02 05:57:04,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:04,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:57:04,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:04,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:57:04,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:57:04,875 INFO L87 Difference]: Start difference. First operand 863 states and 1088 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:57:05,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:05,040 INFO L93 Difference]: Finished difference Result 889 states and 1119 transitions. [2024-12-02 05:57:05,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:57:05,041 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-12-02 05:57:05,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:05,044 INFO L225 Difference]: With dead ends: 889 [2024-12-02 05:57:05,044 INFO L226 Difference]: Without dead ends: 887 [2024-12-02 05:57:05,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:57:05,045 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:05,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 590 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:57:05,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-12-02 05:57:05,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 887. [2024-12-02 05:57:05,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 786 states have (on average 1.2264631043256997) internal successors, (964), 790 states have internal predecessors, (964), 74 states have call successors, (74), 26 states have call predecessors, (74), 26 states have return successors, (74), 70 states have call predecessors, (74), 74 states have call successors, (74) [2024-12-02 05:57:05,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1112 transitions. [2024-12-02 05:57:05,138 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1112 transitions. Word has length 120 [2024-12-02 05:57:05,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:05,138 INFO L471 AbstractCegarLoop]: Abstraction has 887 states and 1112 transitions. [2024-12-02 05:57:05,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:57:05,138 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1112 transitions. [2024-12-02 05:57:05,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 05:57:05,139 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:05,139 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:05,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-12-02 05:57:05,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:57:05,340 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:05,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:05,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1914796325, now seen corresponding path program 1 times [2024-12-02 05:57:05,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:05,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445314465] [2024-12-02 05:57:05,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:05,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:57:05,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:05,342 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:57:05,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-12-02 05:57:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:05,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 05:57:05,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:05,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 05:57:07,212 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 18 treesize of output 10 [2024-12-02 05:57:22,219 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 05:57:22,219 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:57:33,289 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:57:33,290 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:33,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445314465] [2024-12-02 05:57:33,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445314465] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:57:33,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:57:33,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [21] total 32 [2024-12-02 05:57:33,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100280471] [2024-12-02 05:57:33,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:33,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 05:57:33,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:33,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 05:57:33,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=844, Unknown=0, NotChecked=0, Total=992 [2024-12-02 05:57:33,292 INFO L87 Difference]: Start difference. First operand 887 states and 1112 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:57:48,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:48,105 INFO L93 Difference]: Finished difference Result 1907 states and 2374 transitions. [2024-12-02 05:57:48,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 05:57:48,110 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-12-02 05:57:48,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:48,113 INFO L225 Difference]: With dead ends: 1907 [2024-12-02 05:57:48,113 INFO L226 Difference]: Without dead ends: 1109 [2024-12-02 05:57:48,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 24.5s TimeCoverageRelationStatistics Valid=223, Invalid=1109, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 05:57:48,114 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 644 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:48,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 1173 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2024-12-02 05:57:48,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2024-12-02 05:57:48,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 905. [2024-12-02 05:57:48,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 798 states have (on average 1.2230576441102756) internal successors, (976), 802 states have internal predecessors, (976), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 05:57:48,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1132 transitions. [2024-12-02 05:57:48,184 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1132 transitions. Word has length 121 [2024-12-02 05:57:48,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:48,184 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1132 transitions. [2024-12-02 05:57:48,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:57:48,185 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1132 transitions. [2024-12-02 05:57:48,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 05:57:48,185 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:48,186 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:48,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-12-02 05:57:48,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:57:48,386 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:48,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:48,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1369053721, now seen corresponding path program 1 times [2024-12-02 05:57:48,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:48,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396712540] [2024-12-02 05:57:48,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:48,387 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:57:48,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:48,388 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:57:48,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-12-02 05:57:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:48,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 05:57:48,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:55,654 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 123 proven. 6 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-02 05:57:55,654 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:58:00,894 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:58:00,894 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:58:00,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396712540] [2024-12-02 05:58:00,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396712540] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:58:00,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:58:00,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 24 [2024-12-02 05:58:00,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955187724] [2024-12-02 05:58:00,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:00,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 05:58:00,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:58:00,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 05:58:00,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2024-12-02 05:58:00,897 INFO L87 Difference]: Start difference. First operand 905 states and 1132 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:58:16,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:16,182 INFO L93 Difference]: Finished difference Result 1875 states and 2334 transitions. [2024-12-02 05:58:16,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 05:58:16,192 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-12-02 05:58:16,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:16,195 INFO L225 Difference]: With dead ends: 1875 [2024-12-02 05:58:16,195 INFO L226 Difference]: Without dead ends: 1059 [2024-12-02 05:58:16,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=231, Invalid=581, Unknown=0, NotChecked=0, Total=812 [2024-12-02 05:58:16,196 INFO L435 NwaCegarLoop]: 288 mSDtfsCounter, 419 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:16,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 1495 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2024-12-02 05:58:16,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2024-12-02 05:58:16,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 903. [2024-12-02 05:58:16,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 796 states have (on average 1.2185929648241205) internal successors, (970), 800 states have internal predecessors, (970), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 05:58:16,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1126 transitions. [2024-12-02 05:58:16,256 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1126 transitions. Word has length 121 [2024-12-02 05:58:16,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:16,256 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 1126 transitions. [2024-12-02 05:58:16,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:58:16,256 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1126 transitions. [2024-12-02 05:58:16,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 05:58:16,257 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:16,257 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:16,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-12-02 05:58:16,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:58:16,457 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:16,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:16,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1175791485, now seen corresponding path program 1 times [2024-12-02 05:58:16,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:58:16,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066649408] [2024-12-02 05:58:16,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:16,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:58:16,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:58:16,460 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:58:16,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-12-02 05:58:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:16,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 05:58:16,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:58:16,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 05:58:16,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2024-12-02 05:58:16,966 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:58:16,967 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:58:16,967 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:58:16,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066649408] [2024-12-02 05:58:16,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066649408] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:16,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:16,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 05:58:16,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379816139] [2024-12-02 05:58:16,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:16,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 05:58:16,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:58:16,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 05:58:16,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:58:16,968 INFO L87 Difference]: Start difference. First operand 903 states and 1126 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:58:18,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:18,053 INFO L93 Difference]: Finished difference Result 2036 states and 2560 transitions. [2024-12-02 05:58:18,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 05:58:18,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-12-02 05:58:18,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:18,057 INFO L225 Difference]: With dead ends: 2036 [2024-12-02 05:58:18,058 INFO L226 Difference]: Without dead ends: 1222 [2024-12-02 05:58:18,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:58:18,059 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 108 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:18,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1117 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 05:58:18,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2024-12-02 05:58:18,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 967. [2024-12-02 05:58:18,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 860 states have (on average 1.2279069767441861) internal successors, (1056), 864 states have internal predecessors, (1056), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 05:58:18,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1212 transitions. [2024-12-02 05:58:18,165 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1212 transitions. Word has length 121 [2024-12-02 05:58:18,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:18,165 INFO L471 AbstractCegarLoop]: Abstraction has 967 states and 1212 transitions. [2024-12-02 05:58:18,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:58:18,166 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1212 transitions. [2024-12-02 05:58:18,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 05:58:18,166 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:18,166 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:18,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2024-12-02 05:58:18,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:58:18,367 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:18,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:18,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1285604130, now seen corresponding path program 1 times [2024-12-02 05:58:18,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:58:18,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152098507] [2024-12-02 05:58:18,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:18,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:58:18,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:58:18,369 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:58:18,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-12-02 05:58:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:18,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 05:58:18,597 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:58:20,651 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:58:20,651 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 47 treesize of output 23 [2024-12-02 05:58:20,876 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:58:20,876 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:58:20,876 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:58:20,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152098507] [2024-12-02 05:58:20,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152098507] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:20,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:20,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 05:58:20,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288314561] [2024-12-02 05:58:20,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:20,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:58:20,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:58:20,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:58:20,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:58:20,877 INFO L87 Difference]: Start difference. First operand 967 states and 1212 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:58:27,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:27,712 INFO L93 Difference]: Finished difference Result 2864 states and 3590 transitions. [2024-12-02 05:58:27,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 05:58:27,713 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-12-02 05:58:27,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:27,718 INFO L225 Difference]: With dead ends: 2864 [2024-12-02 05:58:27,718 INFO L226 Difference]: Without dead ends: 1986 [2024-12-02 05:58:27,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:58:27,720 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 253 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:27,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 1339 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-12-02 05:58:27,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2024-12-02 05:58:27,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1017. [2024-12-02 05:58:27,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 910 states have (on average 1.2351648351648352) internal successors, (1124), 914 states have internal predecessors, (1124), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 05:58:27,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1280 transitions. [2024-12-02 05:58:27,820 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1280 transitions. Word has length 121 [2024-12-02 05:58:27,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:27,821 INFO L471 AbstractCegarLoop]: Abstraction has 1017 states and 1280 transitions. [2024-12-02 05:58:27,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:58:27,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1280 transitions. [2024-12-02 05:58:27,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 05:58:27,822 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:27,822 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:27,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-12-02 05:58:28,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:58:28,022 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:28,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:28,023 INFO L85 PathProgramCache]: Analyzing trace with hash -302743772, now seen corresponding path program 1 times [2024-12-02 05:58:28,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:58:28,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304664871] [2024-12-02 05:58:28,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:28,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:58:28,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:58:28,025 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:58:28,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-12-02 05:58:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:28,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 05:58:28,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:58:29,861 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:58:29,862 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 69 treesize of output 31 [2024-12-02 05:58:31,203 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:58:31,203 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:58:31,203 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:58:31,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304664871] [2024-12-02 05:58:31,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304664871] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:31,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:31,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:58:31,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379764886] [2024-12-02 05:58:31,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:31,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:58:31,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:58:31,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:58:31,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:58:31,205 INFO L87 Difference]: Start difference. First operand 1017 states and 1280 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:58:41,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:41,276 INFO L93 Difference]: Finished difference Result 2758 states and 3467 transitions. [2024-12-02 05:58:41,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:58:41,281 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-12-02 05:58:41,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:41,285 INFO L225 Difference]: With dead ends: 2758 [2024-12-02 05:58:41,285 INFO L226 Difference]: Without dead ends: 1830 [2024-12-02 05:58:41,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:58:41,286 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 182 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:41,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 934 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2024-12-02 05:58:41,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2024-12-02 05:58:41,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1045. [2024-12-02 05:58:41,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 938 states have (on average 1.232409381663113) internal successors, (1156), 942 states have internal predecessors, (1156), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 05:58:41,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1312 transitions. [2024-12-02 05:58:41,355 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1312 transitions. Word has length 121 [2024-12-02 05:58:41,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:41,355 INFO L471 AbstractCegarLoop]: Abstraction has 1045 states and 1312 transitions. [2024-12-02 05:58:41,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:58:41,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1312 transitions. [2024-12-02 05:58:41,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 05:58:41,356 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:41,356 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:41,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-12-02 05:58:41,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:58:41,556 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:41,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:41,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1426152740, now seen corresponding path program 1 times [2024-12-02 05:58:41,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:58:41,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489733304] [2024-12-02 05:58:41,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:41,557 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:58:41,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:58:41,559 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:58:41,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-12-02 05:58:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:41,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 05:58:41,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:58:45,016 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:58:45,016 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 57 treesize of output 29 [2024-12-02 05:58:45,380 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:58:45,380 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:58:45,381 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:58:45,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489733304] [2024-12-02 05:58:45,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489733304] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:45,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:45,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 05:58:45,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717324269] [2024-12-02 05:58:45,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:45,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 05:58:45,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:58:45,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 05:58:45,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:58:45,381 INFO L87 Difference]: Start difference. First operand 1045 states and 1312 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:58:52,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:52,502 INFO L93 Difference]: Finished difference Result 2439 states and 3056 transitions. [2024-12-02 05:58:52,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 05:58:52,508 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-12-02 05:58:52,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:52,511 INFO L225 Difference]: With dead ends: 2439 [2024-12-02 05:58:52,512 INFO L226 Difference]: Without dead ends: 1493 [2024-12-02 05:58:52,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-12-02 05:58:52,513 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 163 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:52,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 1333 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2024-12-02 05:58:52,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2024-12-02 05:58:52,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1039. [2024-12-02 05:58:52,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 932 states have (on average 1.2317596566523605) internal successors, (1148), 936 states have internal predecessors, (1148), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 05:58:52,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1304 transitions. [2024-12-02 05:58:52,578 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1304 transitions. Word has length 121 [2024-12-02 05:58:52,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:52,578 INFO L471 AbstractCegarLoop]: Abstraction has 1039 states and 1304 transitions. [2024-12-02 05:58:52,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:58:52,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1304 transitions. [2024-12-02 05:58:52,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 05:58:52,580 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:52,580 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:52,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-12-02 05:58:52,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:58:52,780 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:52,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:52,780 INFO L85 PathProgramCache]: Analyzing trace with hash -162195162, now seen corresponding path program 1 times [2024-12-02 05:58:52,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:58:52,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22120290] [2024-12-02 05:58:52,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:52,781 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:58:52,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:58:52,782 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:58:52,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-12-02 05:58:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:53,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 05:58:53,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:58:55,251 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:58:55,251 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 61 treesize of output 29 [2024-12-02 05:58:56,755 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:58:56,756 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:58:56,756 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:58:56,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22120290] [2024-12-02 05:58:56,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22120290] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:56,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:56,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:58:56,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275369253] [2024-12-02 05:58:56,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:56,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:58:56,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:58:56,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:58:56,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:58:56,757 INFO L87 Difference]: Start difference. First operand 1039 states and 1304 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:59:06,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:59:06,769 INFO L93 Difference]: Finished difference Result 2281 states and 2865 transitions. [2024-12-02 05:59:06,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:59:06,773 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-12-02 05:59:06,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:59:06,778 INFO L225 Difference]: With dead ends: 2281 [2024-12-02 05:59:06,778 INFO L226 Difference]: Without dead ends: 1341 [2024-12-02 05:59:06,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:59:06,780 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 85 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:59:06,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 776 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2024-12-02 05:59:06,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2024-12-02 05:59:06,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1025. [2024-12-02 05:59:06,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 918 states have (on average 1.2287581699346406) internal successors, (1128), 922 states have internal predecessors, (1128), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 05:59:06,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1284 transitions. [2024-12-02 05:59:06,889 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1284 transitions. Word has length 121 [2024-12-02 05:59:06,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:59:06,890 INFO L471 AbstractCegarLoop]: Abstraction has 1025 states and 1284 transitions. [2024-12-02 05:59:06,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:59:06,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1284 transitions. [2024-12-02 05:59:06,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 05:59:06,891 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:59:06,891 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:59:06,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-12-02 05:59:07,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:59:07,091 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:59:07,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:59:07,091 INFO L85 PathProgramCache]: Analyzing trace with hash 674585128, now seen corresponding path program 1 times [2024-12-02 05:59:07,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:59:07,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506874098] [2024-12-02 05:59:07,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:59:07,092 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:59:07,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:59:07,093 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 05:59:07,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-12-02 05:59:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:59:07,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 05:59:07,805 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:59:07,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 05:59:14,158 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 54 treesize of output 45 [2024-12-02 05:59:23,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:59:23,200 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 49 treesize of output 31 [2024-12-02 05:59:23,227 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:59:23,227 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 78 treesize of output 38 [2024-12-02 05:59:25,654 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 05:59:25,654 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:59:41,480 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 05:59:41,480 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:59:41,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506874098] [2024-12-02 05:59:41,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506874098] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:59:41,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:59:41,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [22] total 35 [2024-12-02 05:59:41,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706188264] [2024-12-02 05:59:41,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:59:41,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 05:59:41,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:59:41,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 05:59:41,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=953, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 05:59:41,482 INFO L87 Difference]: Start difference. First operand 1025 states and 1284 transitions. Second operand has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 05:59:48,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 05:59:53,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 05:59:56,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:00:00,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:00:04,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:00:08,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:00:12,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:00:16,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:00:20,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:00:35,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:00:40,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:00:44,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:00:48,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:00:52,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:00:56,397 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 [] [2024-12-02 06:00:58,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:00:58,914 INFO L93 Difference]: Finished difference Result 2437 states and 3062 transitions. [2024-12-02 06:00:58,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 06:00:58,918 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 122 [2024-12-02 06:00:58,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:00:58,921 INFO L225 Difference]: With dead ends: 2437 [2024-12-02 06:00:58,921 INFO L226 Difference]: Without dead ends: 1511 [2024-12-02 06:00:58,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 773 ImplicationChecksByTransitivity, 32.5s TimeCoverageRelationStatistics Valid=487, Invalid=1769, Unknown=0, NotChecked=0, Total=2256 [2024-12-02 06:00:58,923 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 123 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 14 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1272 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:00:58,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 1272 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 610 Invalid, 13 Unknown, 0 Unchecked, 69.8s Time] [2024-12-02 06:00:58,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2024-12-02 06:00:58,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1153. [2024-12-02 06:00:58,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1046 states have (on average 1.2323135755258126) internal successors, (1289), 1050 states have internal predecessors, (1289), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 06:00:58,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1445 transitions. [2024-12-02 06:00:58,995 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1445 transitions. Word has length 122 [2024-12-02 06:00:58,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:00:58,995 INFO L471 AbstractCegarLoop]: Abstraction has 1153 states and 1445 transitions. [2024-12-02 06:00:58,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:00:58,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1445 transitions. [2024-12-02 06:00:58,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 06:00:58,996 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:00:58,996 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:00:59,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2024-12-02 06:00:59,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:00:59,197 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:00:59,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:00:59,197 INFO L85 PathProgramCache]: Analyzing trace with hash 2027962321, now seen corresponding path program 1 times [2024-12-02 06:00:59,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:00:59,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1943092429] [2024-12-02 06:00:59,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:00:59,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:00:59,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:00:59,199 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:00:59,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-12-02 06:00:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:00:59,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 06:00:59,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:01:00,075 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 39 treesize of output 21 [2024-12-02 06:01:00,129 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 183 proven. 24 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-12-02 06:01:00,129 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:01:00,893 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 06:01:00,893 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:01:00,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1943092429] [2024-12-02 06:01:00,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1943092429] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:01:00,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 06:01:00,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2024-12-02 06:01:00,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382468419] [2024-12-02 06:01:00,894 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 06:01:00,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:01:00,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:01:00,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:01:00,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:01:00,895 INFO L87 Difference]: Start difference. First operand 1153 states and 1445 transitions. Second operand has 10 states, 8 states have (on average 8.125) internal successors, (65), 10 states have internal predecessors, (65), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 06:01:02,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:01:02,257 INFO L93 Difference]: Finished difference Result 2238 states and 2803 transitions. [2024-12-02 06:01:02,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 06:01:02,258 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.125) internal successors, (65), 10 states have internal predecessors, (65), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) Word has length 122 [2024-12-02 06:01:02,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:01:02,260 INFO L225 Difference]: With dead ends: 2238 [2024-12-02 06:01:02,260 INFO L226 Difference]: Without dead ends: 1187 [2024-12-02 06:01:02,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2024-12-02 06:01:02,261 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 195 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:01:02,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 387 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 06:01:02,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2024-12-02 06:01:02,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1153. [2024-12-02 06:01:02,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1046 states have (on average 1.2246653919694073) internal successors, (1281), 1050 states have internal predecessors, (1281), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 06:01:02,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1437 transitions. [2024-12-02 06:01:02,334 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1437 transitions. Word has length 122 [2024-12-02 06:01:02,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:01:02,335 INFO L471 AbstractCegarLoop]: Abstraction has 1153 states and 1437 transitions. [2024-12-02 06:01:02,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.125) internal successors, (65), 10 states have internal predecessors, (65), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 06:01:02,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1437 transitions. [2024-12-02 06:01:02,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 06:01:02,335 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:01:02,335 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:01:02,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2024-12-02 06:01:02,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:01:02,536 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:01:02,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:01:02,536 INFO L85 PathProgramCache]: Analyzing trace with hash -2048150257, now seen corresponding path program 1 times [2024-12-02 06:01:02,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:01:02,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881642794] [2024-12-02 06:01:02,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:02,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:01:02,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:01:02,538 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:01:02,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-12-02 06:01:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:02,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 06:01:02,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:01:02,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 06:01:04,342 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 18 treesize of output 10 [2024-12-02 06:01:07,483 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:01:07,483 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 64 treesize of output 34 [2024-12-02 06:01:09,475 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 06:01:09,475 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:01:26,130 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 31 treesize of output 23 [2024-12-02 06:01:30,227 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:01:30,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881642794] [2024-12-02 06:01:30,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881642794] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:01:30,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1326485296] [2024-12-02 06:01:30,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:30,228 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 06:01:30,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 06:01:30,230 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 06:01:30,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2024-12-02 06:01:31,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:31,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 06:01:31,175 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:01:32,142 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 17 treesize of output 9 [2024-12-02 06:01:34,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-12-02 06:01:42,394 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 18 treesize of output 10 [2024-12-02 06:01:51,987 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:01:51,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 36 [2024-12-02 06:01:54,775 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 208 proven. 6 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 06:01:54,775 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:02:03,977 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:02:03,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1326485296] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 06:02:03,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 06:02:03,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16, 19] total 41 [2024-12-02 06:02:03,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802263325] [2024-12-02 06:02:03,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:02:03,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:02:03,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:02:03,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:02:03,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=2094, Unknown=0, NotChecked=0, Total=2450 [2024-12-02 06:02:03,978 INFO L87 Difference]: Start difference. First operand 1153 states and 1437 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:02:12,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:02:12,979 INFO L93 Difference]: Finished difference Result 2448 states and 3073 transitions. [2024-12-02 06:02:12,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:02:12,984 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 122 [2024-12-02 06:02:12,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:02:12,986 INFO L225 Difference]: With dead ends: 2448 [2024-12-02 06:02:12,987 INFO L226 Difference]: Without dead ends: 1407 [2024-12-02 06:02:12,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 358 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1006 ImplicationChecksByTransitivity, 49.3s TimeCoverageRelationStatistics Valid=384, Invalid=2268, Unknown=0, NotChecked=0, Total=2652 [2024-12-02 06:02:12,988 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 280 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:02:12,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 790 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-12-02 06:02:12,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2024-12-02 06:02:13,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1129. [2024-12-02 06:02:13,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 1022 states have (on average 1.2240704500978474) internal successors, (1251), 1026 states have internal predecessors, (1251), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 06:02:13,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1407 transitions. [2024-12-02 06:02:13,061 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1407 transitions. Word has length 122 [2024-12-02 06:02:13,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:02:13,061 INFO L471 AbstractCegarLoop]: Abstraction has 1129 states and 1407 transitions. [2024-12-02 06:02:13,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:02:13,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1407 transitions. [2024-12-02 06:02:13,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 06:02:13,062 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:02:13,062 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:02:13,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2024-12-02 06:02:13,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2024-12-02 06:02:13,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 06:02:13,463 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:02:13,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:02:13,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1697154134, now seen corresponding path program 1 times [2024-12-02 06:02:13,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:02:13,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798397253] [2024-12-02 06:02:13,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:02:13,463 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:02:13,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:02:13,465 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:02:13,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2024-12-02 06:02:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:02:14,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 06:02:14,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:02:14,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 06:02:17,562 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 54 treesize of output 45 [2024-12-02 06:02:23,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:02:23,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 36 [2024-12-02 06:02:23,448 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 28 treesize of output 16 [2024-12-02 06:02:24,856 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 127 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 06:02:24,856 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:02:33,357 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:02:33,357 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:02:33,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798397253] [2024-12-02 06:02:33,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1798397253] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 06:02:33,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:02:33,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [18] total 26 [2024-12-02 06:02:33,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287996909] [2024-12-02 06:02:33,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:02:33,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:02:33,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:02:33,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:02:33,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=524, Unknown=0, NotChecked=0, Total=650 [2024-12-02 06:02:33,359 INFO L87 Difference]: Start difference. First operand 1129 states and 1407 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:02:40,352 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 [] [2024-12-02 06:02:44,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:02:48,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:02:52,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:02:56,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:03:05,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:03:10,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:03:14,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:03:18,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:03:22,261 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 [] [2024-12-02 06:03:23,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:03:23,001 INFO L93 Difference]: Finished difference Result 2783 states and 3485 transitions. [2024-12-02 06:03:23,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 06:03:23,005 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 122 [2024-12-02 06:03:23,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:03:23,008 INFO L225 Difference]: With dead ends: 2783 [2024-12-02 06:03:23,009 INFO L226 Difference]: Without dead ends: 1766 [2024-12-02 06:03:23,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=168, Invalid=702, Unknown=0, NotChecked=0, Total=870 [2024-12-02 06:03:23,010 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 133 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 14 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:03:23,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 665 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 295 Invalid, 10 Unknown, 0 Unchecked, 48.1s Time] [2024-12-02 06:03:23,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-12-02 06:03:23,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1157. [2024-12-02 06:03:23,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1050 states have (on average 1.2323809523809524) internal successors, (1294), 1054 states have internal predecessors, (1294), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 06:03:23,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1450 transitions. [2024-12-02 06:03:23,077 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1450 transitions. Word has length 122 [2024-12-02 06:03:23,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:03:23,078 INFO L471 AbstractCegarLoop]: Abstraction has 1157 states and 1450 transitions. [2024-12-02 06:03:23,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:03:23,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1450 transitions. [2024-12-02 06:03:23,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 06:03:23,078 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:03:23,078 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:03:23,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2024-12-02 06:03:23,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:03:23,279 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:03:23,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:03:23,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1514904898, now seen corresponding path program 1 times [2024-12-02 06:03:23,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:03:23,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752226679] [2024-12-02 06:03:23,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:23,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:03:23,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:03:23,281 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:03:23,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2024-12-02 06:03:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:23,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 06:03:23,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:03:25,406 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:03:25,406 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:03:25,406 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:03:25,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752226679] [2024-12-02 06:03:25,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752226679] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:03:25,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:03:25,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:03:25,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173982709] [2024-12-02 06:03:25,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:03:25,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:03:25,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:03:25,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:03:25,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:03:25,407 INFO L87 Difference]: Start difference. First operand 1157 states and 1450 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:03:29,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:03:29,670 INFO L93 Difference]: Finished difference Result 3101 states and 3871 transitions. [2024-12-02 06:03:29,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:03:29,676 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 122 [2024-12-02 06:03:29,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:03:29,680 INFO L225 Difference]: With dead ends: 3101 [2024-12-02 06:03:29,680 INFO L226 Difference]: Without dead ends: 2033 [2024-12-02 06:03:29,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:03:29,681 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 211 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:03:29,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 702 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 06:03:29,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2033 states. [2024-12-02 06:03:29,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2033 to 1177. [2024-12-02 06:03:29,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 1070 states have (on average 1.2317757009345793) internal successors, (1318), 1074 states have internal predecessors, (1318), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 06:03:29,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1474 transitions. [2024-12-02 06:03:29,757 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1474 transitions. Word has length 122 [2024-12-02 06:03:29,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:03:29,757 INFO L471 AbstractCegarLoop]: Abstraction has 1177 states and 1474 transitions. [2024-12-02 06:03:29,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:03:29,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1474 transitions. [2024-12-02 06:03:29,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 06:03:29,758 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:03:29,758 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:03:29,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2024-12-02 06:03:29,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:03:29,958 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:03:29,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:03:29,959 INFO L85 PathProgramCache]: Analyzing trace with hash -479239808, now seen corresponding path program 1 times [2024-12-02 06:03:29,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:03:29,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945662279] [2024-12-02 06:03:29,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:29,959 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:03:29,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:03:29,961 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:03:29,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2024-12-02 06:03:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:30,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 06:03:30,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:03:31,859 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:03:31,859 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 70 treesize of output 32 [2024-12-02 06:03:33,291 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:03:33,291 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:03:33,291 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:03:33,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1945662279] [2024-12-02 06:03:33,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1945662279] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:03:33,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:03:33,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:03:33,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73348074] [2024-12-02 06:03:33,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:03:33,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:03:33,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:03:33,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:03:33,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:03:33,292 INFO L87 Difference]: Start difference. First operand 1177 states and 1474 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:03:41,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:03:41,968 INFO L93 Difference]: Finished difference Result 3066 states and 3814 transitions. [2024-12-02 06:03:41,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:03:41,972 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 122 [2024-12-02 06:03:41,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:03:41,975 INFO L225 Difference]: With dead ends: 3066 [2024-12-02 06:03:41,975 INFO L226 Difference]: Without dead ends: 1976 [2024-12-02 06:03:41,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:03:41,977 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 177 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-12-02 06:03:41,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 814 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-12-02 06:03:41,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2024-12-02 06:03:42,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1200. [2024-12-02 06:03:42,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1200 states, 1093 states have (on average 1.2287282708142726) internal successors, (1343), 1097 states have internal predecessors, (1343), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 06:03:42,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 1499 transitions. [2024-12-02 06:03:42,080 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 1499 transitions. Word has length 122 [2024-12-02 06:03:42,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:03:42,080 INFO L471 AbstractCegarLoop]: Abstraction has 1200 states and 1499 transitions. [2024-12-02 06:03:42,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:03:42,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 1499 transitions. [2024-12-02 06:03:42,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 06:03:42,081 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:03:42,081 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:03:42,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2024-12-02 06:03:42,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:03:42,281 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:03:42,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:03:42,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1576944512, now seen corresponding path program 1 times [2024-12-02 06:03:42,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:03:42,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242370082] [2024-12-02 06:03:42,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:42,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:03:42,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:03:42,284 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:03:42,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2024-12-02 06:03:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:42,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 06:03:42,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:03:42,854 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:03:42,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 20 [2024-12-02 06:03:42,970 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:03:42,970 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:03:42,970 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:03:42,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242370082] [2024-12-02 06:03:42,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242370082] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:03:42,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:03:42,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:03:42,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463232608] [2024-12-02 06:03:42,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:03:42,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:03:42,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:03:42,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:03:42,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:03:42,971 INFO L87 Difference]: Start difference. First operand 1200 states and 1499 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:03:44,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:03:44,779 INFO L93 Difference]: Finished difference Result 3437 states and 4242 transitions. [2024-12-02 06:03:44,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:03:44,780 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 122 [2024-12-02 06:03:44,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:03:44,784 INFO L225 Difference]: With dead ends: 3437 [2024-12-02 06:03:44,784 INFO L226 Difference]: Without dead ends: 2332 [2024-12-02 06:03:44,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:03:44,785 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 175 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:03:44,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 905 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 06:03:44,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2332 states. [2024-12-02 06:03:44,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2332 to 1258. [2024-12-02 06:03:44,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1151 states have (on average 1.2232841007819288) internal successors, (1408), 1155 states have internal predecessors, (1408), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 06:03:44,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 1564 transitions. [2024-12-02 06:03:44,868 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 1564 transitions. Word has length 122 [2024-12-02 06:03:44,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:03:44,868 INFO L471 AbstractCegarLoop]: Abstraction has 1258 states and 1564 transitions. [2024-12-02 06:03:44,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:03:44,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 1564 transitions. [2024-12-02 06:03:44,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 06:03:44,869 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:03:44,869 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:03:44,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2024-12-02 06:03:45,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:03:45,070 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:03:45,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:03:45,070 INFO L85 PathProgramCache]: Analyzing trace with hash 565827262, now seen corresponding path program 1 times [2024-12-02 06:03:45,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:03:45,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368196260] [2024-12-02 06:03:45,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:45,070 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:03:45,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:03:45,072 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:03:45,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2024-12-02 06:03:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:45,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 06:03:45,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:03:47,450 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:03:47,450 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:03:47,450 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:03:47,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368196260] [2024-12-02 06:03:47,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368196260] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:03:47,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:03:47,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:03:47,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495453465] [2024-12-02 06:03:47,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:03:47,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:03:47,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:03:47,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:03:47,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:03:47,452 INFO L87 Difference]: Start difference. First operand 1258 states and 1564 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:03:53,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:03:53,620 INFO L93 Difference]: Finished difference Result 3054 states and 3764 transitions. [2024-12-02 06:03:53,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:03:53,626 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 122 [2024-12-02 06:03:53,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:03:53,630 INFO L225 Difference]: With dead ends: 3054 [2024-12-02 06:03:53,630 INFO L226 Difference]: Without dead ends: 1891 [2024-12-02 06:03:53,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:03:53,631 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 198 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:03:53,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 790 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-12-02 06:03:53,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2024-12-02 06:03:53,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1171. [2024-12-02 06:03:53,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1064 states have (on average 1.2133458646616542) internal successors, (1291), 1068 states have internal predecessors, (1291), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 06:03:53,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1447 transitions. [2024-12-02 06:03:53,756 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1447 transitions. Word has length 122 [2024-12-02 06:03:53,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:03:53,756 INFO L471 AbstractCegarLoop]: Abstraction has 1171 states and 1447 transitions. [2024-12-02 06:03:53,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:03:53,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1447 transitions. [2024-12-02 06:03:53,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 06:03:53,757 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:03:53,757 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:03:53,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2024-12-02 06:03:53,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:03:53,958 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:03:53,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:03:53,958 INFO L85 PathProgramCache]: Analyzing trace with hash -417200194, now seen corresponding path program 1 times [2024-12-02 06:03:53,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:03:53,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572545336] [2024-12-02 06:03:53,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:53,959 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:03:53,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:03:53,960 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:03:53,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2024-12-02 06:03:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:54,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 06:03:54,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:03:56,711 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:03:56,711 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:03:56,711 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:03:56,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [572545336] [2024-12-02 06:03:56,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [572545336] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:03:56,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:03:56,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:03:56,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002860753] [2024-12-02 06:03:56,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:03:56,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:03:56,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:03:56,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:03:56,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:03:56,713 INFO L87 Difference]: Start difference. First operand 1171 states and 1447 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:03,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:03,111 INFO L93 Difference]: Finished difference Result 2912 states and 3566 transitions. [2024-12-02 06:04:03,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:04:03,117 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 122 [2024-12-02 06:04:03,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:03,121 INFO L225 Difference]: With dead ends: 2912 [2024-12-02 06:04:03,122 INFO L226 Difference]: Without dead ends: 1834 [2024-12-02 06:04:03,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:04:03,123 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 171 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:03,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 846 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-12-02 06:04:03,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2024-12-02 06:04:03,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1073. [2024-12-02 06:04:03,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 966 states have (on average 1.2018633540372672) internal successors, (1161), 970 states have internal predecessors, (1161), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 06:04:03,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1317 transitions. [2024-12-02 06:04:03,255 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1317 transitions. Word has length 122 [2024-12-02 06:04:03,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:03,256 INFO L471 AbstractCegarLoop]: Abstraction has 1073 states and 1317 transitions. [2024-12-02 06:04:03,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:03,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1317 transitions. [2024-12-02 06:04:03,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 06:04:03,257 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:03,257 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:04:03,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2024-12-02 06:04:03,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:03,457 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:03,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:03,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1035483071, now seen corresponding path program 1 times [2024-12-02 06:04:03,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:04:03,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225433773] [2024-12-02 06:04:03,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:03,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:03,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:04:03,460 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:04:03,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2024-12-02 06:04:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:03,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 06:04:03,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:04:03,920 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 23 treesize of output 11 [2024-12-02 06:04:03,996 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:04:03,996 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:04:03,996 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:04:03,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225433773] [2024-12-02 06:04:03,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225433773] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:03,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:03,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:04:03,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838649445] [2024-12-02 06:04:03,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:03,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:04:03,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:04:03,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:04:03,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:04:03,997 INFO L87 Difference]: Start difference. First operand 1073 states and 1317 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:05,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:05,087 INFO L93 Difference]: Finished difference Result 2434 states and 3002 transitions. [2024-12-02 06:04:05,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:04:05,088 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-12-02 06:04:05,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:05,090 INFO L225 Difference]: With dead ends: 2434 [2024-12-02 06:04:05,090 INFO L226 Difference]: Without dead ends: 1448 [2024-12-02 06:04:05,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:04:05,091 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 86 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:05,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 560 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 06:04:05,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2024-12-02 06:04:05,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1111. [2024-12-02 06:04:05,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 1004 states have (on average 1.202191235059761) internal successors, (1207), 1008 states have internal predecessors, (1207), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 06:04:05,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1363 transitions. [2024-12-02 06:04:05,166 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1363 transitions. Word has length 123 [2024-12-02 06:04:05,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:05,166 INFO L471 AbstractCegarLoop]: Abstraction has 1111 states and 1363 transitions. [2024-12-02 06:04:05,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:05,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1363 transitions. [2024-12-02 06:04:05,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 06:04:05,167 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:05,167 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:04:05,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2024-12-02 06:04:05,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:05,367 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:05,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:05,367 INFO L85 PathProgramCache]: Analyzing trace with hash -2056551425, now seen corresponding path program 1 times [2024-12-02 06:04:05,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:04:05,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578647858] [2024-12-02 06:04:05,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:05,368 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:05,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:04:05,369 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:04:05,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2024-12-02 06:04:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:05,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 06:04:05,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:04:06,033 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:04:06,033 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 38 treesize of output 18 [2024-12-02 06:04:06,785 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:04:06,785 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:04:06,785 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:04:06,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578647858] [2024-12-02 06:04:06,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578647858] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:06,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:06,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:04:06,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769955354] [2024-12-02 06:04:06,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:06,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:04:06,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:04:06,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:04:06,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:04:06,787 INFO L87 Difference]: Start difference. First operand 1111 states and 1363 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:12,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:12,000 INFO L93 Difference]: Finished difference Result 2389 states and 2925 transitions. [2024-12-02 06:04:12,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:04:12,001 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-12-02 06:04:12,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:12,003 INFO L225 Difference]: With dead ends: 2389 [2024-12-02 06:04:12,003 INFO L226 Difference]: Without dead ends: 1373 [2024-12-02 06:04:12,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:04:12,005 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 76 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:12,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 854 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-12-02 06:04:12,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2024-12-02 06:04:12,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1111. [2024-12-02 06:04:12,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 1004 states have (on average 1.202191235059761) internal successors, (1207), 1008 states have internal predecessors, (1207), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 06:04:12,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1363 transitions. [2024-12-02 06:04:12,079 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1363 transitions. Word has length 123 [2024-12-02 06:04:12,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:12,079 INFO L471 AbstractCegarLoop]: Abstraction has 1111 states and 1363 transitions. [2024-12-02 06:04:12,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:12,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1363 transitions. [2024-12-02 06:04:12,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 06:04:12,080 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:12,080 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:04:12,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Ended with exit code 0 [2024-12-02 06:04:12,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:12,280 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:12,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:12,280 INFO L85 PathProgramCache]: Analyzing trace with hash 552827609, now seen corresponding path program 1 times [2024-12-02 06:04:12,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:04:12,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135424395] [2024-12-02 06:04:12,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:12,281 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:12,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:04:12,282 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:04:12,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2024-12-02 06:04:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:12,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 06:04:12,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:04:12,813 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 24 treesize of output 12 [2024-12-02 06:04:12,874 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:04:12,874 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:04:12,874 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:04:12,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135424395] [2024-12-02 06:04:12,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1135424395] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:12,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:12,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:04:12,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489388910] [2024-12-02 06:04:12,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:12,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:04:12,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:04:12,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:04:12,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:04:12,876 INFO L87 Difference]: Start difference. First operand 1111 states and 1363 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:14,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:14,026 INFO L93 Difference]: Finished difference Result 2454 states and 3032 transitions. [2024-12-02 06:04:14,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:04:14,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-12-02 06:04:14,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:14,029 INFO L225 Difference]: With dead ends: 2454 [2024-12-02 06:04:14,030 INFO L226 Difference]: Without dead ends: 1438 [2024-12-02 06:04:14,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:04:14,031 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 84 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:14,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 734 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 06:04:14,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-12-02 06:04:14,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1141. [2024-12-02 06:04:14,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 1034 states have (on average 1.2011605415860735) internal successors, (1242), 1038 states have internal predecessors, (1242), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 06:04:14,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1398 transitions. [2024-12-02 06:04:14,107 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1398 transitions. Word has length 123 [2024-12-02 06:04:14,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:14,108 INFO L471 AbstractCegarLoop]: Abstraction has 1141 states and 1398 transitions. [2024-12-02 06:04:14,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:14,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1398 transitions. [2024-12-02 06:04:14,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 06:04:14,108 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:14,108 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:04:14,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2024-12-02 06:04:14,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:14,309 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:14,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:14,309 INFO L85 PathProgramCache]: Analyzing trace with hash -458289641, now seen corresponding path program 1 times [2024-12-02 06:04:14,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:04:14,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638622781] [2024-12-02 06:04:14,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:14,309 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:14,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:04:14,311 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:04:14,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2024-12-02 06:04:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:14,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 06:04:14,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:04:15,126 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:04:15,127 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:04:15,127 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:04:15,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638622781] [2024-12-02 06:04:15,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638622781] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:15,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:15,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:04:15,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579719640] [2024-12-02 06:04:15,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:15,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:04:15,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:04:15,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:04:15,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:04:15,128 INFO L87 Difference]: Start difference. First operand 1141 states and 1398 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:16,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:16,587 INFO L93 Difference]: Finished difference Result 2468 states and 3031 transitions. [2024-12-02 06:04:16,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:04:16,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-12-02 06:04:16,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:16,591 INFO L225 Difference]: With dead ends: 2468 [2024-12-02 06:04:16,591 INFO L226 Difference]: Without dead ends: 1428 [2024-12-02 06:04:16,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:04:16,592 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 81 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:16,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 867 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 06:04:16,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2024-12-02 06:04:16,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1141. [2024-12-02 06:04:16,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 1034 states have (on average 1.1914893617021276) internal successors, (1232), 1038 states have internal predecessors, (1232), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 06:04:16,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1388 transitions. [2024-12-02 06:04:16,705 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1388 transitions. Word has length 123 [2024-12-02 06:04:16,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:16,705 INFO L471 AbstractCegarLoop]: Abstraction has 1141 states and 1388 transitions. [2024-12-02 06:04:16,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:16,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1388 transitions. [2024-12-02 06:04:16,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 06:04:16,707 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:16,707 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:04:16,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2024-12-02 06:04:16,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:16,907 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:16,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:16,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1544956161, now seen corresponding path program 1 times [2024-12-02 06:04:16,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:04:16,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434769641] [2024-12-02 06:04:16,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:16,908 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:16,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:04:16,910 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:04:16,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2024-12-02 06:04:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:17,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 06:04:17,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:04:17,668 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:04:17,668 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:04:17,669 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:04:17,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434769641] [2024-12-02 06:04:17,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434769641] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:17,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:17,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:04:17,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386199348] [2024-12-02 06:04:17,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:17,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:04:17,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:04:17,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:04:17,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:04:17,670 INFO L87 Difference]: Start difference. First operand 1141 states and 1388 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:19,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:19,014 INFO L93 Difference]: Finished difference Result 2508 states and 3051 transitions. [2024-12-02 06:04:19,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:04:19,015 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-12-02 06:04:19,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:19,018 INFO L225 Difference]: With dead ends: 2508 [2024-12-02 06:04:19,018 INFO L226 Difference]: Without dead ends: 1468 [2024-12-02 06:04:19,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:04:19,020 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 84 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:19,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 643 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 06:04:19,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2024-12-02 06:04:19,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1141. [2024-12-02 06:04:19,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 1034 states have (on average 1.1866537717601546) internal successors, (1227), 1038 states have internal predecessors, (1227), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 06:04:19,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1383 transitions. [2024-12-02 06:04:19,127 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1383 transitions. Word has length 123 [2024-12-02 06:04:19,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:19,127 INFO L471 AbstractCegarLoop]: Abstraction has 1141 states and 1383 transitions. [2024-12-02 06:04:19,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:19,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1383 transitions. [2024-12-02 06:04:19,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 06:04:19,127 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:19,127 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:04:19,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Ended with exit code 0 [2024-12-02 06:04:19,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:19,328 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:19,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:19,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1728942781, now seen corresponding path program 1 times [2024-12-02 06:04:19,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:04:19,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576422862] [2024-12-02 06:04:19,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:19,329 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:19,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:04:19,330 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:04:19,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2024-12-02 06:04:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:19,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 06:04:19,578 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:04:19,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-12-02 06:04:19,829 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:04:19,829 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:04:19,829 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:04:19,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576422862] [2024-12-02 06:04:19,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [576422862] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:19,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:19,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:04:19,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264359281] [2024-12-02 06:04:19,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:19,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:04:19,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:04:19,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:04:19,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:04:19,830 INFO L87 Difference]: Start difference. First operand 1141 states and 1383 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:21,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:21,229 INFO L93 Difference]: Finished difference Result 3082 states and 3726 transitions. [2024-12-02 06:04:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:04:21,230 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-12-02 06:04:21,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:21,232 INFO L225 Difference]: With dead ends: 3082 [2024-12-02 06:04:21,232 INFO L226 Difference]: Without dead ends: 2036 [2024-12-02 06:04:21,233 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:04:21,234 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 128 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:21,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 521 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 06:04:21,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2024-12-02 06:04:21,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 1912. [2024-12-02 06:04:21,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1912 states, 1719 states have (on average 1.1698662012798138) internal successors, (2011), 1727 states have internal predecessors, (2011), 142 states have call successors, (142), 50 states have call predecessors, (142), 50 states have return successors, (142), 134 states have call predecessors, (142), 142 states have call successors, (142) [2024-12-02 06:04:21,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2295 transitions. [2024-12-02 06:04:21,382 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2295 transitions. Word has length 123 [2024-12-02 06:04:21,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:21,382 INFO L471 AbstractCegarLoop]: Abstraction has 1912 states and 2295 transitions. [2024-12-02 06:04:21,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:21,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2295 transitions. [2024-12-02 06:04:21,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 06:04:21,383 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:21,383 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:04:21,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Ended with exit code 0 [2024-12-02 06:04:21,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:21,583 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:21,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:21,584 INFO L85 PathProgramCache]: Analyzing trace with hash 855556001, now seen corresponding path program 1 times [2024-12-02 06:04:21,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:04:21,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1331577864] [2024-12-02 06:04:21,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:21,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:21,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:04:21,586 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:04:21,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2024-12-02 06:04:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:21,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 06:04:21,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:04:21,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 06:04:22,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 06:04:22,712 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:04:22,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 36 [2024-12-02 06:04:24,154 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:04:24,154 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 95 treesize of output 49 [2024-12-02 06:04:24,558 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-12-02 06:04:24,558 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:04:24,558 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:04:24,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1331577864] [2024-12-02 06:04:24,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1331577864] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:24,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:24,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 06:04:24,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441821290] [2024-12-02 06:04:24,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:24,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 06:04:24,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:04:24,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 06:04:24,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-12-02 06:04:24,560 INFO L87 Difference]: Start difference. First operand 1912 states and 2295 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 06:04:29,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:29,948 INFO L93 Difference]: Finished difference Result 3538 states and 4198 transitions. [2024-12-02 06:04:29,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-12-02 06:04:29,948 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2024-12-02 06:04:29,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:29,952 INFO L225 Difference]: With dead ends: 3538 [2024-12-02 06:04:29,952 INFO L226 Difference]: Without dead ends: 3536 [2024-12-02 06:04:29,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=202, Invalid=920, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 06:04:29,953 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 400 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:29,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 1511 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 06:04:29,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3536 states. [2024-12-02 06:04:30,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3536 to 2668. [2024-12-02 06:04:30,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2668 states, 2403 states have (on average 1.16354556803995) internal successors, (2796), 2419 states have internal predecessors, (2796), 192 states have call successors, (192), 72 states have call predecessors, (192), 72 states have return successors, (192), 176 states have call predecessors, (192), 192 states have call successors, (192) [2024-12-02 06:04:30,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2668 states to 2668 states and 3180 transitions. [2024-12-02 06:04:30,232 INFO L78 Accepts]: Start accepts. Automaton has 2668 states and 3180 transitions. Word has length 123 [2024-12-02 06:04:30,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:30,232 INFO L471 AbstractCegarLoop]: Abstraction has 2668 states and 3180 transitions. [2024-12-02 06:04:30,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 06:04:30,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2668 states and 3180 transitions. [2024-12-02 06:04:30,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 06:04:30,233 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:30,233 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:04:30,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Ended with exit code 0 [2024-12-02 06:04:30,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:30,433 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:30,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:30,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1018868856, now seen corresponding path program 1 times [2024-12-02 06:04:30,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:04:30,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691769538] [2024-12-02 06:04:30,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:30,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:30,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:04:30,436 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:04:30,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2024-12-02 06:04:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:30,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 06:04:30,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:04:32,253 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:04:32,254 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 48 treesize of output 24 [2024-12-02 06:04:32,515 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:04:32,515 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:04:32,515 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:04:32,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691769538] [2024-12-02 06:04:32,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691769538] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:32,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:32,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 06:04:32,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144902453] [2024-12-02 06:04:32,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:32,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:04:32,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:04:32,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:04:32,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:04:32,516 INFO L87 Difference]: Start difference. First operand 2668 states and 3180 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:42,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:42,920 INFO L93 Difference]: Finished difference Result 6695 states and 7997 transitions. [2024-12-02 06:04:42,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 06:04:42,921 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-12-02 06:04:42,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:42,925 INFO L225 Difference]: With dead ends: 6695 [2024-12-02 06:04:42,925 INFO L226 Difference]: Without dead ends: 4122 [2024-12-02 06:04:42,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:04:42,927 INFO L435 NwaCegarLoop]: 281 mSDtfsCounter, 212 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:42,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 1443 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-12-02 06:04:42,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4122 states. [2024-12-02 06:04:43,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4122 to 3620. [2024-12-02 06:04:43,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3249 states have (on average 1.1631271160357033) internal successors, (3779), 3271 states have internal predecessors, (3779), 270 states have call successors, (270), 100 states have call predecessors, (270), 100 states have return successors, (270), 248 states have call predecessors, (270), 270 states have call successors, (270) [2024-12-02 06:04:43,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 4319 transitions. [2024-12-02 06:04:43,289 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 4319 transitions. Word has length 123 [2024-12-02 06:04:43,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:43,289 INFO L471 AbstractCegarLoop]: Abstraction has 3620 states and 4319 transitions. [2024-12-02 06:04:43,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:43,289 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 4319 transitions. [2024-12-02 06:04:43,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 06:04:43,290 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:43,290 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:04:43,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Ended with exit code 0 [2024-12-02 06:04:43,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:43,491 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:43,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:43,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1687750538, now seen corresponding path program 1 times [2024-12-02 06:04:43,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:04:43,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916844301] [2024-12-02 06:04:43,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:43,491 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:43,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:04:43,493 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:04:43,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2024-12-02 06:04:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:43,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 06:04:43,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:04:45,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:04:45,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 19 [2024-12-02 06:04:45,584 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:04:45,584 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:04:45,584 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:04:45,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916844301] [2024-12-02 06:04:45,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [916844301] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:45,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:45,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:04:45,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581506479] [2024-12-02 06:04:45,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:45,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:04:45,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:04:45,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:04:45,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:04:45,585 INFO L87 Difference]: Start difference. First operand 3620 states and 4319 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:56,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:56,230 INFO L93 Difference]: Finished difference Result 7115 states and 8512 transitions. [2024-12-02 06:04:56,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 06:04:56,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-12-02 06:04:56,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:56,239 INFO L225 Difference]: With dead ends: 7115 [2024-12-02 06:04:56,239 INFO L226 Difference]: Without dead ends: 3561 [2024-12-02 06:04:56,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:04:56,242 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 122 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:56,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 1190 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2024-12-02 06:04:56,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3561 states. [2024-12-02 06:04:56,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3561 to 3468. [2024-12-02 06:04:56,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3468 states, 3109 states have (on average 1.1650048247024767) internal successors, (3622), 3129 states have internal predecessors, (3622), 262 states have call successors, (262), 96 states have call predecessors, (262), 96 states have return successors, (262), 242 states have call predecessors, (262), 262 states have call successors, (262) [2024-12-02 06:04:56,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3468 states to 3468 states and 4146 transitions. [2024-12-02 06:04:56,583 INFO L78 Accepts]: Start accepts. Automaton has 3468 states and 4146 transitions. Word has length 123 [2024-12-02 06:04:56,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:56,583 INFO L471 AbstractCegarLoop]: Abstraction has 3468 states and 4146 transitions. [2024-12-02 06:04:56,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:56,583 INFO L276 IsEmpty]: Start isEmpty. Operand 3468 states and 4146 transitions. [2024-12-02 06:04:56,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 06:04:56,584 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:56,585 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:04:56,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Ended with exit code 0 [2024-12-02 06:04:56,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:56,785 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:56,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:56,785 INFO L85 PathProgramCache]: Analyzing trace with hash 875189628, now seen corresponding path program 1 times [2024-12-02 06:04:56,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:04:56,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623802231] [2024-12-02 06:04:56,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:56,786 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:56,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:04:56,787 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:04:56,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2024-12-02 06:04:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:57,051 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 06:04:57,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:04:57,241 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 20 treesize of output 12 [2024-12-02 06:04:57,309 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:04:57,309 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:04:57,309 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:04:57,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623802231] [2024-12-02 06:04:57,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1623802231] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:57,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:57,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:04:57,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200031057] [2024-12-02 06:04:57,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:57,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:04:57,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:04:57,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:04:57,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:04:57,310 INFO L87 Difference]: Start difference. First operand 3468 states and 4146 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:59,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:59,199 INFO L93 Difference]: Finished difference Result 7013 states and 8395 transitions. [2024-12-02 06:04:59,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:04:59,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 124 [2024-12-02 06:04:59,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:59,204 INFO L225 Difference]: With dead ends: 7013 [2024-12-02 06:04:59,204 INFO L226 Difference]: Without dead ends: 3632 [2024-12-02 06:04:59,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:04:59,207 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 113 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:59,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 872 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 06:04:59,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3632 states. [2024-12-02 06:04:59,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3632 to 3468. [2024-12-02 06:04:59,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3468 states, 3109 states have (on average 1.1598584753940173) internal successors, (3606), 3129 states have internal predecessors, (3606), 262 states have call successors, (262), 96 states have call predecessors, (262), 96 states have return successors, (262), 242 states have call predecessors, (262), 262 states have call successors, (262) [2024-12-02 06:04:59,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3468 states to 3468 states and 4130 transitions. [2024-12-02 06:04:59,538 INFO L78 Accepts]: Start accepts. Automaton has 3468 states and 4130 transitions. Word has length 124 [2024-12-02 06:04:59,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:59,539 INFO L471 AbstractCegarLoop]: Abstraction has 3468 states and 4130 transitions. [2024-12-02 06:04:59,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:04:59,539 INFO L276 IsEmpty]: Start isEmpty. Operand 3468 states and 4130 transitions. [2024-12-02 06:04:59,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 06:04:59,539 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:59,540 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:04:59,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Ended with exit code 0 [2024-12-02 06:04:59,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:59,740 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:59,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:59,740 INFO L85 PathProgramCache]: Analyzing trace with hash -107837828, now seen corresponding path program 1 times [2024-12-02 06:04:59,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:04:59,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836235062] [2024-12-02 06:04:59,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:59,741 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:59,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:04:59,742 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:04:59,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2024-12-02 06:04:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:00,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 06:05:00,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:05:00,272 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:05:00,272 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 39 treesize of output 19 [2024-12-02 06:05:00,976 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:05:00,976 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:05:00,977 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:05:00,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836235062] [2024-12-02 06:05:00,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836235062] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:00,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:00,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:05:00,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736607318] [2024-12-02 06:05:00,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:00,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:05:00,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:05:00,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:05:00,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:05:00,978 INFO L87 Difference]: Start difference. First operand 3468 states and 4130 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:05:08,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:08,939 INFO L93 Difference]: Finished difference Result 6973 states and 8315 transitions. [2024-12-02 06:05:08,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:05:08,940 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 124 [2024-12-02 06:05:08,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:08,944 INFO L225 Difference]: With dead ends: 6973 [2024-12-02 06:05:08,944 INFO L226 Difference]: Without dead ends: 3546 [2024-12-02 06:05:08,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:05:08,947 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 111 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:08,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 959 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2024-12-02 06:05:08,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3546 states. [2024-12-02 06:05:09,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3546 to 3374. [2024-12-02 06:05:09,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3374 states, 3015 states have (on average 1.158872305140962) internal successors, (3494), 3035 states have internal predecessors, (3494), 262 states have call successors, (262), 96 states have call predecessors, (262), 96 states have return successors, (262), 242 states have call predecessors, (262), 262 states have call successors, (262) [2024-12-02 06:05:09,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3374 states to 3374 states and 4018 transitions. [2024-12-02 06:05:09,277 INFO L78 Accepts]: Start accepts. Automaton has 3374 states and 4018 transitions. Word has length 124 [2024-12-02 06:05:09,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:09,277 INFO L471 AbstractCegarLoop]: Abstraction has 3374 states and 4018 transitions. [2024-12-02 06:05:09,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:05:09,277 INFO L276 IsEmpty]: Start isEmpty. Operand 3374 states and 4018 transitions. [2024-12-02 06:05:09,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 06:05:09,278 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:09,278 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:09,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Ended with exit code 0 [2024-12-02 06:05:09,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:05:09,479 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:09,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:09,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1591653533, now seen corresponding path program 1 times [2024-12-02 06:05:09,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:05:09,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966449405] [2024-12-02 06:05:09,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:09,479 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:05:09,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:05:09,481 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:05:09,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2024-12-02 06:05:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:09,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 06:05:09,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:05:09,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 06:05:09,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 06:05:10,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-12-02 06:05:11,032 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:05:11,032 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 59 treesize of output 29 [2024-12-02 06:05:11,468 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 139 proven. 30 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-12-02 06:05:11,468 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:05:13,074 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 06:05:13,074 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:05:13,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966449405] [2024-12-02 06:05:13,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [966449405] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 06:05:13,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:05:13,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 21 [2024-12-02 06:05:13,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463231052] [2024-12-02 06:05:13,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:13,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:05:13,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:05:13,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:05:13,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-12-02 06:05:13,076 INFO L87 Difference]: Start difference. First operand 3374 states and 4018 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:05:15,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:15,233 INFO L93 Difference]: Finished difference Result 7117 states and 8462 transitions. [2024-12-02 06:05:15,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 06:05:15,243 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 125 [2024-12-02 06:05:15,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:15,248 INFO L225 Difference]: With dead ends: 7117 [2024-12-02 06:05:15,248 INFO L226 Difference]: Without dead ends: 3838 [2024-12-02 06:05:15,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=78, Invalid=624, Unknown=0, NotChecked=0, Total=702 [2024-12-02 06:05:15,250 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 51 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:15,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 1231 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 06:05:15,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3838 states. [2024-12-02 06:05:15,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3838 to 3830. [2024-12-02 06:05:15,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3830 states, 3449 states have (on average 1.1481588866338068) internal successors, (3960), 3475 states have internal predecessors, (3960), 274 states have call successors, (274), 106 states have call predecessors, (274), 106 states have return successors, (274), 248 states have call predecessors, (274), 274 states have call successors, (274) [2024-12-02 06:05:15,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3830 states to 3830 states and 4508 transitions. [2024-12-02 06:05:15,695 INFO L78 Accepts]: Start accepts. Automaton has 3830 states and 4508 transitions. Word has length 125 [2024-12-02 06:05:15,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:15,695 INFO L471 AbstractCegarLoop]: Abstraction has 3830 states and 4508 transitions. [2024-12-02 06:05:15,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:05:15,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3830 states and 4508 transitions. [2024-12-02 06:05:15,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 06:05:15,697 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:15,697 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:15,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Ended with exit code 0 [2024-12-02 06:05:15,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:05:15,897 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:15,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:15,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1692196513, now seen corresponding path program 1 times [2024-12-02 06:05:15,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:05:15,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130198194] [2024-12-02 06:05:15,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:15,898 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:05:15,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:05:15,899 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:05:15,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2024-12-02 06:05:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:16,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 06:05:16,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:05:16,251 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 14 treesize of output 10 [2024-12-02 06:05:17,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-02 06:05:17,924 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 49 treesize of output 25 [2024-12-02 06:05:17,986 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 203 proven. 24 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2024-12-02 06:05:17,986 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:05:18,944 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 06:05:18,944 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:05:18,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130198194] [2024-12-02 06:05:18,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130198194] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:05:18,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 06:05:18,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2024-12-02 06:05:18,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060431823] [2024-12-02 06:05:18,944 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 06:05:18,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 06:05:18,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:05:18,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 06:05:18,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:05:18,946 INFO L87 Difference]: Start difference. First operand 3830 states and 4508 transitions. Second operand has 12 states, 10 states have (on average 10.3) internal successors, (103), 12 states have internal predecessors, (103), 6 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 06:05:20,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:20,977 INFO L93 Difference]: Finished difference Result 7408 states and 8674 transitions. [2024-12-02 06:05:20,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 06:05:20,978 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 10.3) internal successors, (103), 12 states have internal predecessors, (103), 6 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) Word has length 125 [2024-12-02 06:05:20,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:20,983 INFO L225 Difference]: With dead ends: 7408 [2024-12-02 06:05:20,983 INFO L226 Difference]: Without dead ends: 3673 [2024-12-02 06:05:20,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 237 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2024-12-02 06:05:20,985 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 105 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:20,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 358 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 06:05:20,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3673 states. [2024-12-02 06:05:21,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3673 to 3551. [2024-12-02 06:05:21,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3551 states, 3170 states have (on average 1.1252365930599368) internal successors, (3567), 3196 states have internal predecessors, (3567), 274 states have call successors, (274), 106 states have call predecessors, (274), 106 states have return successors, (274), 248 states have call predecessors, (274), 274 states have call successors, (274) [2024-12-02 06:05:21,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3551 states to 3551 states and 4115 transitions. [2024-12-02 06:05:21,371 INFO L78 Accepts]: Start accepts. Automaton has 3551 states and 4115 transitions. Word has length 125 [2024-12-02 06:05:21,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:21,371 INFO L471 AbstractCegarLoop]: Abstraction has 3551 states and 4115 transitions. [2024-12-02 06:05:21,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 10.3) internal successors, (103), 12 states have internal predecessors, (103), 6 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 06:05:21,372 INFO L276 IsEmpty]: Start isEmpty. Operand 3551 states and 4115 transitions. [2024-12-02 06:05:21,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-12-02 06:05:21,374 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:21,374 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:21,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Ended with exit code 0 [2024-12-02 06:05:21,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:05:21,575 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:21,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:21,575 INFO L85 PathProgramCache]: Analyzing trace with hash -863667443, now seen corresponding path program 1 times [2024-12-02 06:05:21,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:05:21,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788691028] [2024-12-02 06:05:21,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:21,576 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:05:21,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:05:21,577 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:05:21,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2024-12-02 06:05:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:22,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 06:05:22,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:05:22,627 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 23 treesize of output 22 [2024-12-02 06:05:22,879 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:05:22,879 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 33 treesize of output 35 [2024-12-02 06:05:25,724 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:05:25,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 29 [2024-12-02 06:05:26,017 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:05:26,017 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 38 treesize of output 16 [2024-12-02 06:05:26,503 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:05:26,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 28 [2024-12-02 06:05:26,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1572 backedges. 582 proven. 454 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-12-02 06:05:26,628 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:05:27,510 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:05:27,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788691028] [2024-12-02 06:05:27,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788691028] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:05:27,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [983965504] [2024-12-02 06:05:27,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:27,511 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 06:05:27,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 06:05:27,513 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 06:05:27,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2024-12-02 06:05:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:29,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 06:05:29,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:05:30,522 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 21 treesize of output 20 [2024-12-02 06:05:30,931 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:05:30,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 23 [2024-12-02 06:05:33,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:05:33,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 24 [2024-12-02 06:05:33,715 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:05:33,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2024-12-02 06:05:35,574 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:05:35,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 24 [2024-12-02 06:05:35,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1572 backedges. 963 proven. 1 refuted. 0 times theorem prover too weak. 608 trivial. 0 not checked. [2024-12-02 06:05:35,688 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:05:37,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1572 backedges. 17 proven. 20 refuted. 0 times theorem prover too weak. 1535 trivial. 0 not checked. [2024-12-02 06:05:37,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [983965504] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:05:37,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:05:37,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2024-12-02 06:05:37,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69776464] [2024-12-02 06:05:37,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:05:37,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 06:05:37,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:05:37,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 06:05:37,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2024-12-02 06:05:37,675 INFO L87 Difference]: Start difference. First operand 3551 states and 4115 transitions. Second operand has 20 states, 20 states have (on average 13.35) internal successors, (267), 20 states have internal predecessors, (267), 9 states have call successors, (73), 8 states have call predecessors, (73), 8 states have return successors, (73), 9 states have call predecessors, (73), 9 states have call successors, (73) [2024-12-02 06:05:40,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:40,251 INFO L93 Difference]: Finished difference Result 8003 states and 9275 transitions. [2024-12-02 06:05:40,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:05:40,252 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.35) internal successors, (267), 20 states have internal predecessors, (267), 9 states have call successors, (73), 8 states have call predecessors, (73), 8 states have return successors, (73), 9 states have call predecessors, (73), 9 states have call successors, (73) Word has length 239 [2024-12-02 06:05:40,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:40,257 INFO L225 Difference]: With dead ends: 8003 [2024-12-02 06:05:40,258 INFO L226 Difference]: Without dead ends: 4547 [2024-12-02 06:05:40,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 780 GetRequests, 753 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=211, Invalid=545, Unknown=0, NotChecked=0, Total=756 [2024-12-02 06:05:40,260 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 439 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:40,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 789 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 06:05:40,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4547 states. [2024-12-02 06:05:40,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4547 to 4280. [2024-12-02 06:05:40,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4280 states, 3810 states have (on average 1.1225721784776903) internal successors, (4277), 3841 states have internal predecessors, (4277), 340 states have call successors, (340), 129 states have call predecessors, (340), 129 states have return successors, (340), 309 states have call predecessors, (340), 340 states have call successors, (340) [2024-12-02 06:05:40,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4280 states to 4280 states and 4957 transitions. [2024-12-02 06:05:40,817 INFO L78 Accepts]: Start accepts. Automaton has 4280 states and 4957 transitions. Word has length 239 [2024-12-02 06:05:40,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:40,817 INFO L471 AbstractCegarLoop]: Abstraction has 4280 states and 4957 transitions. [2024-12-02 06:05:40,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.35) internal successors, (267), 20 states have internal predecessors, (267), 9 states have call successors, (73), 8 states have call predecessors, (73), 8 states have return successors, (73), 9 states have call predecessors, (73), 9 states have call successors, (73) [2024-12-02 06:05:40,817 INFO L276 IsEmpty]: Start isEmpty. Operand 4280 states and 4957 transitions. [2024-12-02 06:05:40,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-12-02 06:05:40,821 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:40,821 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:40,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Ended with exit code 0 [2024-12-02 06:05:41,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2024-12-02 06:05:41,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 06:05:41,222 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:41,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:41,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1059560591, now seen corresponding path program 1 times [2024-12-02 06:05:41,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:05:41,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483513221] [2024-12-02 06:05:41,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:41,223 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:05:41,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:05:41,225 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:05:41,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2024-12-02 06:05:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:41,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-02 06:05:41,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:05:41,922 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 10 treesize of output 4 [2024-12-02 06:05:42,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2024-12-02 06:05:42,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-12-02 06:05:44,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 06:05:45,849 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:05:45,849 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 33 treesize of output 35 [2024-12-02 06:05:48,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 06:05:52,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2024-12-02 06:05:52,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2024-12-02 06:05:59,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 40 [2024-12-02 06:06:03,703 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:06:03,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 23 [2024-12-02 06:06:03,732 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 32 treesize of output 14 [2024-12-02 06:06:04,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1572 backedges. 1041 proven. 205 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-12-02 06:06:04,054 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:06:10,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1572 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2024-12-02 06:06:10,507 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:06:10,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [483513221] [2024-12-02 06:06:10,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [483513221] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 06:06:10,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:06:10,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [36] total 41 [2024-12-02 06:06:10,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596418248] [2024-12-02 06:06:10,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:06:10,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:06:10,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:06:10,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:06:10,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=1398, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 06:06:10,508 INFO L87 Difference]: Start difference. First operand 4280 states and 4957 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:06:17,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:17,134 INFO L93 Difference]: Finished difference Result 9450 states and 10876 transitions. [2024-12-02 06:06:17,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:06:17,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 239 [2024-12-02 06:06:17,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:17,149 INFO L225 Difference]: With dead ends: 9450 [2024-12-02 06:06:17,149 INFO L226 Difference]: Without dead ends: 5244 [2024-12-02 06:06:17,153 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 437 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=261, Invalid=1545, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 06:06:17,153 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 89 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:17,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 478 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-12-02 06:06:17,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5244 states. [2024-12-02 06:06:17,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5244 to 4384. [2024-12-02 06:06:17,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4384 states, 3914 states have (on average 1.1223811957077159) internal successors, (4393), 3945 states have internal predecessors, (4393), 340 states have call successors, (340), 129 states have call predecessors, (340), 129 states have return successors, (340), 309 states have call predecessors, (340), 340 states have call successors, (340) [2024-12-02 06:06:17,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4384 states to 4384 states and 5073 transitions. [2024-12-02 06:06:17,638 INFO L78 Accepts]: Start accepts. Automaton has 4384 states and 5073 transitions. Word has length 239 [2024-12-02 06:06:17,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:17,638 INFO L471 AbstractCegarLoop]: Abstraction has 4384 states and 5073 transitions. [2024-12-02 06:06:17,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 06:06:17,638 INFO L276 IsEmpty]: Start isEmpty. Operand 4384 states and 5073 transitions. [2024-12-02 06:06:17,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-12-02 06:06:17,641 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:17,641 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:06:17,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Ended with exit code 0 [2024-12-02 06:06:17,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:06:17,842 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:17,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:17,843 INFO L85 PathProgramCache]: Analyzing trace with hash 461194063, now seen corresponding path program 1 times [2024-12-02 06:06:17,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:06:17,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632783795] [2024-12-02 06:06:17,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:17,844 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:06:17,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:06:17,846 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:06:17,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e54da1-a04b-44c5-bfb6-d41bee8dcc31/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2024-12-02 06:06:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:18,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-12-02 06:06:18,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:06:20,192 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 23 treesize of output 22 [2024-12-02 06:06:20,798 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:06:20,798 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 38 treesize of output 25 [2024-12-02 06:06:22,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2024-12-02 06:06:30,722 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:06:30,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 49