./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-51.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_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/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_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-51.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/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_6ee92394-d0e2-4c9d-971d-036a30688d82/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 4c325d93e59be9711665baa02e130ec0fdff30298f1a41b16a3d5d6f34a29b0c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:34:03,799 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:34:03,863 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 15:34:03,868 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:34:03,868 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:34:03,892 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:34:03,893 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:34:03,893 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:34:03,894 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:34:03,894 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:34:03,894 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:34:03,894 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:34:03,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:34:03,894 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:34:03,895 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:34:03,895 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:34:03,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:34:03,895 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:34:03,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:34:03,895 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:34:03,895 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:34:03,895 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:34:03,896 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:34:03,896 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:34:03,896 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:34:03,896 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:34:03,896 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:34:03,896 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:34:03,896 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:34:03,897 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:34:03,897 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:34:03,897 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:34:03,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:34:03,897 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:34:03,897 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:34:03,897 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:34:03,897 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:34:03,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:34:03,898 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:34:03,898 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:34:03,898 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:34:03,898 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:34:03,898 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:34:03,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:34:03,898 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:34:03,898 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:34:03,898 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:34:03,899 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:34:03,899 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_6ee92394-d0e2-4c9d-971d-036a30688d82/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 -> 4c325d93e59be9711665baa02e130ec0fdff30298f1a41b16a3d5d6f34a29b0c [2024-12-02 15:34:04,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:34:04,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:34:04,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:34:04,149 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:34:04,149 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:34:04,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-51.i [2024-12-02 15:34:06,854 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/data/aeda84aed/156d533603ab44468e90f1b6f299162d/FLAGe0f0697ec [2024-12-02 15:34:07,074 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:34:07,075 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-51.i [2024-12-02 15:34:07,083 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/data/aeda84aed/156d533603ab44468e90f1b6f299162d/FLAGe0f0697ec [2024-12-02 15:34:07,097 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/data/aeda84aed/156d533603ab44468e90f1b6f299162d [2024-12-02 15:34:07,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:34:07,101 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:34:07,102 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:34:07,102 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:34:07,107 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:34:07,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:34:07" (1/1) ... [2024-12-02 15:34:07,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26820bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:07, skipping insertion in model container [2024-12-02 15:34:07,109 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:34:07" (1/1) ... [2024-12-02 15:34:07,126 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:34:07,257 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_6ee92394-d0e2-4c9d-971d-036a30688d82/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-51.i[916,929] [2024-12-02 15:34:07,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:34:07,321 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:34:07,331 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_6ee92394-d0e2-4c9d-971d-036a30688d82/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-51.i[916,929] [2024-12-02 15:34:07,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:34:07,379 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:34:07,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:07 WrapperNode [2024-12-02 15:34:07,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:34:07,380 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:34:07,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:34:07,380 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:34:07,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:07" (1/1) ... [2024-12-02 15:34:07,397 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:07" (1/1) ... [2024-12-02 15:34:07,428 INFO L138 Inliner]: procedures = 29, calls = 179, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 553 [2024-12-02 15:34:07,428 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:34:07,429 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:34:07,429 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:34:07,429 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:34:07,436 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:07" (1/1) ... [2024-12-02 15:34:07,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:07" (1/1) ... [2024-12-02 15:34:07,442 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:07" (1/1) ... [2024-12-02 15:34:07,461 INFO L175 MemorySlicer]: Split 145 memory accesses to 5 slices as follows [2, 8, 49, 7, 79]. 54 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 1, 5, 1, 7]. The 18 writes are split as follows [0, 1, 7, 1, 9]. [2024-12-02 15:34:07,461 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:07" (1/1) ... [2024-12-02 15:34:07,461 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:07" (1/1) ... [2024-12-02 15:34:07,480 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:07" (1/1) ... [2024-12-02 15:34:07,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:07" (1/1) ... [2024-12-02 15:34:07,487 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:07" (1/1) ... [2024-12-02 15:34:07,489 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:07" (1/1) ... [2024-12-02 15:34:07,491 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:07" (1/1) ... [2024-12-02 15:34:07,496 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:34:07,496 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:34:07,496 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:34:07,497 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:34:07,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:07" (1/1) ... [2024-12-02 15:34:07,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:34:07,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:34:07,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:34:07,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:34:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:34:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-12-02 15:34:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-12-02 15:34:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-12-02 15:34:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-12-02 15:34:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-12-02 15:34:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 15:34:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 15:34:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 15:34:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 15:34:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 15:34:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-12-02 15:34:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-12-02 15:34:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-12-02 15:34:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-12-02 15:34:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-12-02 15:34:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 15:34:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 15:34:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 15:34:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 15:34:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 15:34:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-12-02 15:34:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-12-02 15:34:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-12-02 15:34:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-12-02 15:34:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-12-02 15:34:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 15:34:07,544 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 15:34:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:34:07,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 15:34:07,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 15:34:07,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 15:34:07,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 15:34:07,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:34:07,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:34:07,663 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:34:07,664 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:34:08,135 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-12-02 15:34:08,135 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:34:08,148 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:34:08,149 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 15:34:08,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:34:08 BoogieIcfgContainer [2024-12-02 15:34:08,149 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:34:08,152 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:34:08,152 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:34:08,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:34:08,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:34:07" (1/3) ... [2024-12-02 15:34:08,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402656ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:34:08, skipping insertion in model container [2024-12-02 15:34:08,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:07" (2/3) ... [2024-12-02 15:34:08,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402656ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:34:08, skipping insertion in model container [2024-12-02 15:34:08,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:34:08" (3/3) ... [2024-12-02 15:34:08,159 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-51.i [2024-12-02 15:34:08,176 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:34:08,178 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-51.i that has 2 procedures, 124 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 15:34:08,233 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:34:08,252 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;@2838501, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:34:08,253 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 15:34:08,259 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 102 states have (on average 1.4215686274509804) internal successors, (145), 103 states have internal predecessors, (145), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 15:34:08,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 15:34:08,271 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:34:08,272 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:08,272 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:34:08,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:34:08,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1995181470, now seen corresponding path program 1 times [2024-12-02 15:34:08,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:34:08,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28639925] [2024-12-02 15:34:08,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:34:08,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:34:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:34:08,577 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-12-02 15:34:08,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:34:08,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28639925] [2024-12-02 15:34:08,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28639925] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:34:08,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410376498] [2024-12-02 15:34:08,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:34:08,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:34:08,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:34:08,581 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:34:08,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:34:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:34:08,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 15:34:08,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:34:08,861 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-12-02 15:34:08,861 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:34:08,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410376498] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:34:08,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:34:08,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 15:34:08,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78039655] [2024-12-02 15:34:08,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:34:08,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 15:34:08,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:34:08,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 15:34:08,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:34:08,895 INFO L87 Difference]: Start difference. First operand has 124 states, 102 states have (on average 1.4215686274509804) internal successors, (145), 103 states have internal predecessors, (145), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 15:34:08,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:34:08,928 INFO L93 Difference]: Finished difference Result 241 states and 379 transitions. [2024-12-02 15:34:08,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 15:34:08,930 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 149 [2024-12-02 15:34:08,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:34:08,935 INFO L225 Difference]: With dead ends: 241 [2024-12-02 15:34:08,935 INFO L226 Difference]: Without dead ends: 120 [2024-12-02 15:34:08,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 150 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 15:34:08,942 INFO L435 NwaCegarLoop]: 176 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, 176 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 15:34:08,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:34:08,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-12-02 15:34:08,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-12-02 15:34:08,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 99 states have (on average 1.393939393939394) internal successors, (138), 99 states have internal predecessors, (138), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 15:34:08,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 176 transitions. [2024-12-02 15:34:08,982 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 176 transitions. Word has length 149 [2024-12-02 15:34:08,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:34:08,983 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 176 transitions. [2024-12-02 15:34:08,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 15:34:08,983 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 176 transitions. [2024-12-02 15:34:08,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 15:34:08,985 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:34:08,986 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:08,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 15:34:09,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 15:34:09,186 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:34:09,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:34:09,187 INFO L85 PathProgramCache]: Analyzing trace with hash -517073916, now seen corresponding path program 1 times [2024-12-02 15:34:09,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:34:09,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422485113] [2024-12-02 15:34:09,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:34:09,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:34:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:34:09,466 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:34:09,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:34:09,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422485113] [2024-12-02 15:34:09,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422485113] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:34:09,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:34:09,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:34:09,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677801272] [2024-12-02 15:34:09,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:34:09,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:34:09,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:34:09,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:34:09,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:34:09,469 INFO L87 Difference]: Start difference. First operand 120 states and 176 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 15:34:09,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:34:09,518 INFO L93 Difference]: Finished difference Result 239 states and 352 transitions. [2024-12-02 15:34:09,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:34:09,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 149 [2024-12-02 15:34:09,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:34:09,520 INFO L225 Difference]: With dead ends: 239 [2024-12-02 15:34:09,521 INFO L226 Difference]: Without dead ends: 122 [2024-12-02 15:34:09,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:34:09,522 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:34:09,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 511 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:34:09,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-12-02 15:34:09,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-12-02 15:34:09,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 101 states have (on average 1.386138613861386) internal successors, (140), 101 states have internal predecessors, (140), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 15:34:09,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 178 transitions. [2024-12-02 15:34:09,535 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 178 transitions. Word has length 149 [2024-12-02 15:34:09,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:34:09,536 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 178 transitions. [2024-12-02 15:34:09,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 15:34:09,536 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 178 transitions. [2024-12-02 15:34:09,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 15:34:09,539 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:34:09,539 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:09,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 15:34:09,539 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:34:09,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:34:09,540 INFO L85 PathProgramCache]: Analyzing trace with hash -805893306, now seen corresponding path program 1 times [2024-12-02 15:34:09,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:34:09,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870534892] [2024-12-02 15:34:09,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:34:09,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:34:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:34:09,930 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:34:09,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:34:09,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870534892] [2024-12-02 15:34:09,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870534892] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:34:09,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:34:09,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:34:09,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904993858] [2024-12-02 15:34:09,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:34:09,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:34:09,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:34:09,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:34:09,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:34:09,932 INFO L87 Difference]: Start difference. First operand 122 states and 178 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:34:09,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:34:09,953 INFO L93 Difference]: Finished difference Result 241 states and 353 transitions. [2024-12-02 15:34:09,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:34:09,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2024-12-02 15:34:09,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:34:09,956 INFO L225 Difference]: With dead ends: 241 [2024-12-02 15:34:09,956 INFO L226 Difference]: Without dead ends: 122 [2024-12-02 15:34:09,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:34:09,957 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:34:09,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:34:09,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-12-02 15:34:09,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-12-02 15:34:09,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 101 states have (on average 1.3762376237623761) internal successors, (139), 101 states have internal predecessors, (139), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 15:34:09,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 177 transitions. [2024-12-02 15:34:09,966 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 177 transitions. Word has length 149 [2024-12-02 15:34:09,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:34:09,967 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 177 transitions. [2024-12-02 15:34:09,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:34:09,967 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 177 transitions. [2024-12-02 15:34:09,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 15:34:09,970 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:34:09,970 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:09,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 15:34:09,970 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:34:09,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:34:09,971 INFO L85 PathProgramCache]: Analyzing trace with hash 489803607, now seen corresponding path program 1 times [2024-12-02 15:34:09,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:34:09,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892777991] [2024-12-02 15:34:09,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:34:09,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:34:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:34:10,110 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 15:34:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:34:10,283 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 15:34:10,283 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 15:34:10,284 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 15:34:10,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 15:34:10,289 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-12-02 15:34:10,363 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 15:34:10,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:34:10 BoogieIcfgContainer [2024-12-02 15:34:10,366 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 15:34:10,367 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 15:34:10,367 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 15:34:10,367 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 15:34:10,367 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:34:08" (3/4) ... [2024-12-02 15:34:10,370 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 15:34:10,370 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 15:34:10,371 INFO L158 Benchmark]: Toolchain (without parser) took 3270.58ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 87.2MB in the end (delta: 29.8MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2024-12-02 15:34:10,371 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:34:10,372 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.75ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 101.9MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:34:10,372 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.08ms. Allocated memory is still 142.6MB. Free memory was 101.9MB in the beginning and 98.2MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:34:10,372 INFO L158 Benchmark]: Boogie Preprocessor took 67.05ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 93.9MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 15:34:10,373 INFO L158 Benchmark]: RCFGBuilder took 652.83ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 59.8MB in the end (delta: 34.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-02 15:34:10,373 INFO L158 Benchmark]: TraceAbstraction took 2214.38ms. Allocated memory is still 142.6MB. Free memory was 59.0MB in the beginning and 87.3MB in the end (delta: -28.3MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2024-12-02 15:34:10,373 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 87.2MB in the end (delta: 10.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:34:10,375 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.75ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 101.9MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.08ms. Allocated memory is still 142.6MB. Free memory was 101.9MB in the beginning and 98.2MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 67.05ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 93.9MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 652.83ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 59.8MB in the end (delta: 34.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2214.38ms. Allocated memory is still 142.6MB. Free memory was 59.0MB in the beginning and 87.3MB in the end (delta: -28.3MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 87.2MB in the end (delta: 10.3kB). 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 69, overapproximation of someBinaryDOUBLEComparisonOperation at line 71, overapproximation of someBinaryDOUBLEComparisonOperation at line 69, overapproximation of someBinaryDOUBLEComparisonOperation at line 75, overapproximation of someBinaryDOUBLEComparisonOperation at line 75, overapproximation of someBinaryDOUBLEComparisonOperation at line 73, overapproximation of someBinaryDOUBLEComparisonOperation at line 73, overapproximation of someBinaryDOUBLEComparisonOperation at line 100, overapproximation of someBinaryDOUBLEComparisonOperation at line 71. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 0 }; [L25-L27] double double_Array_0[5] = { 127.5, 10.6, 999999999.4, 100.01, 10.8 }; [L25-L27] double double_Array_0[5] = { 127.5, 10.6, 999999999.4, 100.01, 10.8 }; [L25-L27] double double_Array_0[5] = { 127.5, 10.6, 999999999.4, 100.01, 10.8 }; [L25-L27] double double_Array_0[5] = { 127.5, 10.6, 999999999.4, 100.01, 10.8 }; [L25-L27] double double_Array_0[5] = { 127.5, 10.6, 999999999.4, 100.01, 10.8 }; [L25-L27] double double_Array_0[5] = { 127.5, 10.6, 999999999.4, 100.01, 10.8 }; [L28-L30] signed short int signed_short_int_Array_0[1] = { -16 }; [L28-L30] signed short int signed_short_int_Array_0[1] = { -16 }; [L31-L33] unsigned long int unsigned_long_int_Array_0[7] = { 2565572511, 500, 1, 2467894503, 2745650083, 8, 2277019112 }; [L31-L33] unsigned long int unsigned_long_int_Array_0[7] = { 2565572511, 500, 1, 2467894503, 2745650083, 8, 2277019112 }; [L31-L33] unsigned long int unsigned_long_int_Array_0[7] = { 2565572511, 500, 1, 2467894503, 2745650083, 8, 2277019112 }; [L31-L33] unsigned long int unsigned_long_int_Array_0[7] = { 2565572511, 500, 1, 2467894503, 2745650083, 8, 2277019112 }; [L31-L33] unsigned long int unsigned_long_int_Array_0[7] = { 2565572511, 500, 1, 2467894503, 2745650083, 8, 2277019112 }; [L31-L33] unsigned long int unsigned_long_int_Array_0[7] = { 2565572511, 500, 1, 2467894503, 2745650083, 8, 2277019112 }; [L31-L33] unsigned long int unsigned_long_int_Array_0[7] = { 2565572511, 500, 1, 2467894503, 2745650083, 8, 2277019112 }; [L31-L33] unsigned long int unsigned_long_int_Array_0[7] = { 2565572511, 500, 1, 2467894503, 2745650083, 8, 2277019112 }; [L34] unsigned long int last_1_unsigned_long_int_Array_0_5_ = 8; VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=0, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L104] isInitial = 1 [L105] FCALL initially() [L107] CALL updateLastVariables() [L97] EXPR unsigned_long_int_Array_0[5] [L97] last_1_unsigned_long_int_Array_0_5_ = unsigned_long_int_Array_0[5] [L107] RET updateLastVariables() [L108] CALL updateVariables() [L65] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L66] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L66] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L66] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L67] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L67] 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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L67] 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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L68] double_Array_0[0] = __VERIFIER_nondet_double() [L69] EXPR double_Array_0[0] [L69] EXPR double_Array_0[0] >= -230584.3009213691390e+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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L69] EXPR double_Array_0[0] >= -230584.3009213691390e+13F && double_Array_0[0] <= -1.0e-20F [L69] EXPR double_Array_0[0] [L69] EXPR double_Array_0[0] >= -230584.3009213691390e+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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L69] EXPR (double_Array_0[0] >= -230584.3009213691390e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 2305843.009213691390e+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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L69] EXPR (double_Array_0[0] >= -230584.3009213691390e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 2305843.009213691390e+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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L69] CALL assume_abort_if_not((double_Array_0[0] >= -230584.3009213691390e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 2305843.009213691390e+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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L69] RET assume_abort_if_not((double_Array_0[0] >= -230584.3009213691390e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 2305843.009213691390e+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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L70] double_Array_0[1] = __VERIFIER_nondet_double() [L71] EXPR double_Array_0[1] [L71] EXPR double_Array_0[1] >= -461168.6018427382800e+13F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L71] EXPR double_Array_0[1] >= -461168.6018427382800e+13F && double_Array_0[1] <= -1.0e-20F [L71] EXPR double_Array_0[1] [L71] EXPR double_Array_0[1] >= -461168.6018427382800e+13F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L71] EXPR (double_Array_0[1] >= -461168.6018427382800e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 4611686.018427382800e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L71] EXPR (double_Array_0[1] >= -461168.6018427382800e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 4611686.018427382800e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L71] CALL assume_abort_if_not((double_Array_0[1] >= -461168.6018427382800e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 4611686.018427382800e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L71] RET assume_abort_if_not((double_Array_0[1] >= -461168.6018427382800e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 4611686.018427382800e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L72] double_Array_0[2] = __VERIFIER_nondet_double() [L73] EXPR double_Array_0[2] [L73] EXPR double_Array_0[2] >= -461168.6018427382800e+13F && double_Array_0[2] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L73] EXPR double_Array_0[2] >= -461168.6018427382800e+13F && double_Array_0[2] <= -1.0e-20F [L73] EXPR double_Array_0[2] [L73] EXPR double_Array_0[2] >= -461168.6018427382800e+13F && double_Array_0[2] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L73] EXPR (double_Array_0[2] >= -461168.6018427382800e+13F && double_Array_0[2] <= -1.0e-20F) || (double_Array_0[2] <= 4611686.018427382800e+12F && double_Array_0[2] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L73] EXPR (double_Array_0[2] >= -461168.6018427382800e+13F && double_Array_0[2] <= -1.0e-20F) || (double_Array_0[2] <= 4611686.018427382800e+12F && double_Array_0[2] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L73] CALL assume_abort_if_not((double_Array_0[2] >= -461168.6018427382800e+13F && double_Array_0[2] <= -1.0e-20F) || (double_Array_0[2] <= 4611686.018427382800e+12F && double_Array_0[2] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L73] RET assume_abort_if_not((double_Array_0[2] >= -461168.6018427382800e+13F && double_Array_0[2] <= -1.0e-20F) || (double_Array_0[2] <= 4611686.018427382800e+12F && double_Array_0[2] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L74] double_Array_0[3] = __VERIFIER_nondet_double() [L75] EXPR double_Array_0[3] [L75] EXPR double_Array_0[3] >= -922337.2036854765600e+13F && double_Array_0[3] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L75] EXPR double_Array_0[3] >= -922337.2036854765600e+13F && double_Array_0[3] <= -1.0e-20F [L75] EXPR double_Array_0[3] [L75] EXPR double_Array_0[3] >= -922337.2036854765600e+13F && double_Array_0[3] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L75] EXPR (double_Array_0[3] >= -922337.2036854765600e+13F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L75] EXPR (double_Array_0[3] >= -922337.2036854765600e+13F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L75] CALL assume_abort_if_not((double_Array_0[3] >= -922337.2036854765600e+13F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L75] RET assume_abort_if_not((double_Array_0[3] >= -922337.2036854765600e+13F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 9223372.036854765600e+12F && double_Array_0[3] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L76] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L77] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L77] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= -32768) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L77] RET assume_abort_if_not(signed_short_int_Array_0[0] >= -32768) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L78] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L78] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L78] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L79] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L79] CALL assume_abort_if_not(signed_short_int_Array_0[0] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L79] RET assume_abort_if_not(signed_short_int_Array_0[0] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L80] unsigned_long_int_Array_0[0] = __VERIFIER_nondet_ulong() [L81] EXPR unsigned_long_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L81] CALL assume_abort_if_not(unsigned_long_int_Array_0[0] >= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L81] RET assume_abort_if_not(unsigned_long_int_Array_0[0] >= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L82] EXPR unsigned_long_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L82] CALL assume_abort_if_not(unsigned_long_int_Array_0[0] <= 4294967295) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L82] RET assume_abort_if_not(unsigned_long_int_Array_0[0] <= 4294967295) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L83] unsigned_long_int_Array_0[1] = __VERIFIER_nondet_ulong() [L84] EXPR unsigned_long_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L84] CALL assume_abort_if_not(unsigned_long_int_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L84] RET assume_abort_if_not(unsigned_long_int_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L85] EXPR unsigned_long_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L85] CALL assume_abort_if_not(unsigned_long_int_Array_0[1] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L85] RET assume_abort_if_not(unsigned_long_int_Array_0[1] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L86] unsigned_long_int_Array_0[3] = __VERIFIER_nondet_ulong() [L87] EXPR unsigned_long_int_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L87] CALL assume_abort_if_not(unsigned_long_int_Array_0[3] >= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L87] RET assume_abort_if_not(unsigned_long_int_Array_0[3] >= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L88] EXPR unsigned_long_int_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L88] CALL assume_abort_if_not(unsigned_long_int_Array_0[3] <= 4294967295) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L88] RET assume_abort_if_not(unsigned_long_int_Array_0[3] <= 4294967295) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L89] unsigned_long_int_Array_0[4] = __VERIFIER_nondet_ulong() [L90] EXPR unsigned_long_int_Array_0[4] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L90] CALL assume_abort_if_not(unsigned_long_int_Array_0[4] >= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L90] RET assume_abort_if_not(unsigned_long_int_Array_0[4] >= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L91] EXPR unsigned_long_int_Array_0[4] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L91] CALL assume_abort_if_not(unsigned_long_int_Array_0[4] <= 4294967294) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L91] RET assume_abort_if_not(unsigned_long_int_Array_0[4] <= 4294967294) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L92] unsigned_long_int_Array_0[6] = __VERIFIER_nondet_ulong() [L93] EXPR unsigned_long_int_Array_0[6] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L93] CALL assume_abort_if_not(unsigned_long_int_Array_0[6] >= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L93] RET assume_abort_if_not(unsigned_long_int_Array_0[6] >= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L94] EXPR unsigned_long_int_Array_0[6] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L94] CALL assume_abort_if_not(unsigned_long_int_Array_0[6] <= 4294967294) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L94] RET assume_abort_if_not(unsigned_long_int_Array_0[6] <= 4294967294) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L108] RET updateVariables() [L109] CALL step() [L38] unsigned long int stepLocal_1 = - last_1_unsigned_long_int_Array_0_5_; [L39] EXPR unsigned_long_int_Array_0[3] [L39] EXPR unsigned_long_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L39] EXPR ((unsigned_long_int_Array_0[3]) > (unsigned_long_int_Array_0[0])) ? (unsigned_long_int_Array_0[3]) : (unsigned_long_int_Array_0[0]) [L39] EXPR unsigned_long_int_Array_0[3] [L39] EXPR ((unsigned_long_int_Array_0[3]) > (unsigned_long_int_Array_0[0])) ? (unsigned_long_int_Array_0[3]) : (unsigned_long_int_Array_0[0]) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, stepLocal_1=-8, unsigned_long_int_Array_0={7:0}] [L39] EXPR unsigned_long_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L39] COND FALSE !((((((unsigned_long_int_Array_0[3]) > (unsigned_long_int_Array_0[0])) ? (unsigned_long_int_Array_0[3]) : (unsigned_long_int_Array_0[0]))) - unsigned_long_int_Array_0[1]) != stepLocal_1) [L42] EXPR unsigned_long_int_Array_0[6] [L42] unsigned_long_int_Array_0[2] = unsigned_long_int_Array_0[6] [L44] EXPR unsigned_long_int_Array_0[2] [L44] EXPR unsigned_long_int_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L44] COND TRUE unsigned_long_int_Array_0[2] <= unsigned_long_int_Array_0[2] [L45] EXPR BOOL_unsigned_char_Array_0[0] [L45] BOOL_unsigned_char_Array_0[0] && (unsigned_long_int_Array_0[2] == ((((unsigned_long_int_Array_0[4]) > (unsigned_long_int_Array_0[0])) ? (unsigned_long_int_Array_0[4]) : (unsigned_long_int_Array_0[0])))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L45] BOOL_unsigned_char_Array_0[0] && (unsigned_long_int_Array_0[2] == ((((unsigned_long_int_Array_0[4]) > (unsigned_long_int_Array_0[0])) ? (unsigned_long_int_Array_0[4]) : (unsigned_long_int_Array_0[0])))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L45] COND FALSE !(BOOL_unsigned_char_Array_0[0] && (unsigned_long_int_Array_0[2] == ((((unsigned_long_int_Array_0[4]) > (unsigned_long_int_Array_0[0])) ? (unsigned_long_int_Array_0[4]) : (unsigned_long_int_Array_0[0]))))) [L53] EXPR unsigned_long_int_Array_0[2] [L53] unsigned long int stepLocal_0 = unsigned_long_int_Array_0[2]; [L54] BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L54] COND FALSE !(BOOL_unsigned_char_Array_0[0]) [L61] EXPR double_Array_0[1] [L61] double_Array_0[4] = double_Array_0[1] [L109] RET step() [L110] CALL, EXPR property() [L100] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L100] EXPR BOOL_unsigned_char_Array_0[0] ? ((unsigned_long_int_Array_0[2] >= (unsigned_long_int_Array_0[2] / signed_short_int_Array_0[0])) ? (double_Array_0[4] == ((double) ((((double_Array_0[3]) < 0 ) ? -(double_Array_0[3]) : (double_Array_0[3]))))) : (double_Array_0[4] == ((double) (double_Array_0[2] + ((((double_Array_0[1]) > ((double_Array_0[0] + 63.25))) ? (double_Array_0[1]) : ((double_Array_0[0] + 63.25)))))))) : (double_Array_0[4] == ((double) double_Array_0[1])) [L100] EXPR double_Array_0[4] [L100] EXPR double_Array_0[1] [L100] EXPR BOOL_unsigned_char_Array_0[0] ? ((unsigned_long_int_Array_0[2] >= (unsigned_long_int_Array_0[2] / signed_short_int_Array_0[0])) ? (double_Array_0[4] == ((double) ((((double_Array_0[3]) < 0 ) ? -(double_Array_0[3]) : (double_Array_0[3]))))) : (double_Array_0[4] == ((double) (double_Array_0[2] + ((((double_Array_0[1]) > ((double_Array_0[0] + 63.25))) ? (double_Array_0[1]) : ((double_Array_0[0] + 63.25)))))))) : (double_Array_0[4] == ((double) double_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L100] EXPR (BOOL_unsigned_char_Array_0[0] ? ((unsigned_long_int_Array_0[2] >= (unsigned_long_int_Array_0[2] / signed_short_int_Array_0[0])) ? (double_Array_0[4] == ((double) ((((double_Array_0[3]) < 0 ) ? -(double_Array_0[3]) : (double_Array_0[3]))))) : (double_Array_0[4] == ((double) (double_Array_0[2] + ((((double_Array_0[1]) > ((double_Array_0[0] + 63.25))) ? (double_Array_0[1]) : ((double_Array_0[0] + 63.25)))))))) : (double_Array_0[4] == ((double) double_Array_0[1]))) && (((((((unsigned_long_int_Array_0[3]) > (unsigned_long_int_Array_0[0])) ? (unsigned_long_int_Array_0[3]) : (unsigned_long_int_Array_0[0]))) - unsigned_long_int_Array_0[1]) != (- last_1_unsigned_long_int_Array_0_5_)) ? (unsigned_long_int_Array_0[2] == ((unsigned long int) (((((unsigned_long_int_Array_0[6]) < (unsigned_long_int_Array_0[4])) ? (unsigned_long_int_Array_0[6]) : (unsigned_long_int_Array_0[4]))) - unsigned_long_int_Array_0[1]))) : (unsigned_long_int_Array_0[2] == ((unsigned long int) unsigned_long_int_Array_0[6]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L100] EXPR (BOOL_unsigned_char_Array_0[0] ? ((unsigned_long_int_Array_0[2] >= (unsigned_long_int_Array_0[2] / signed_short_int_Array_0[0])) ? (double_Array_0[4] == ((double) ((((double_Array_0[3]) < 0 ) ? -(double_Array_0[3]) : (double_Array_0[3]))))) : (double_Array_0[4] == ((double) (double_Array_0[2] + ((((double_Array_0[1]) > ((double_Array_0[0] + 63.25))) ? (double_Array_0[1]) : ((double_Array_0[0] + 63.25)))))))) : (double_Array_0[4] == ((double) double_Array_0[1]))) && (((((((unsigned_long_int_Array_0[3]) > (unsigned_long_int_Array_0[0])) ? (unsigned_long_int_Array_0[3]) : (unsigned_long_int_Array_0[0]))) - unsigned_long_int_Array_0[1]) != (- last_1_unsigned_long_int_Array_0_5_)) ? (unsigned_long_int_Array_0[2] == ((unsigned long int) (((((unsigned_long_int_Array_0[6]) < (unsigned_long_int_Array_0[4])) ? (unsigned_long_int_Array_0[6]) : (unsigned_long_int_Array_0[4]))) - unsigned_long_int_Array_0[1]))) : (unsigned_long_int_Array_0[2] == ((unsigned long int) unsigned_long_int_Array_0[6]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L100] EXPR ((BOOL_unsigned_char_Array_0[0] ? ((unsigned_long_int_Array_0[2] >= (unsigned_long_int_Array_0[2] / signed_short_int_Array_0[0])) ? (double_Array_0[4] == ((double) ((((double_Array_0[3]) < 0 ) ? -(double_Array_0[3]) : (double_Array_0[3]))))) : (double_Array_0[4] == ((double) (double_Array_0[2] + ((((double_Array_0[1]) > ((double_Array_0[0] + 63.25))) ? (double_Array_0[1]) : ((double_Array_0[0] + 63.25)))))))) : (double_Array_0[4] == ((double) double_Array_0[1]))) && (((((((unsigned_long_int_Array_0[3]) > (unsigned_long_int_Array_0[0])) ? (unsigned_long_int_Array_0[3]) : (unsigned_long_int_Array_0[0]))) - unsigned_long_int_Array_0[1]) != (- last_1_unsigned_long_int_Array_0_5_)) ? (unsigned_long_int_Array_0[2] == ((unsigned long int) (((((unsigned_long_int_Array_0[6]) < (unsigned_long_int_Array_0[4])) ? (unsigned_long_int_Array_0[6]) : (unsigned_long_int_Array_0[4]))) - unsigned_long_int_Array_0[1]))) : (unsigned_long_int_Array_0[2] == ((unsigned long int) unsigned_long_int_Array_0[6])))) && ((unsigned_long_int_Array_0[2] <= unsigned_long_int_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] && (unsigned_long_int_Array_0[2] == ((((unsigned_long_int_Array_0[4]) > (unsigned_long_int_Array_0[0])) ? (unsigned_long_int_Array_0[4]) : (unsigned_long_int_Array_0[0]))))) ? ((unsigned_long_int_Array_0[2] < unsigned_long_int_Array_0[3]) ? (unsigned_long_int_Array_0[5] == ((unsigned long int) unsigned_long_int_Array_0[6])) : 1) : 1) : (unsigned_long_int_Array_0[5] == ((unsigned long int) unsigned_long_int_Array_0[4]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L100] EXPR ((BOOL_unsigned_char_Array_0[0] ? ((unsigned_long_int_Array_0[2] >= (unsigned_long_int_Array_0[2] / signed_short_int_Array_0[0])) ? (double_Array_0[4] == ((double) ((((double_Array_0[3]) < 0 ) ? -(double_Array_0[3]) : (double_Array_0[3]))))) : (double_Array_0[4] == ((double) (double_Array_0[2] + ((((double_Array_0[1]) > ((double_Array_0[0] + 63.25))) ? (double_Array_0[1]) : ((double_Array_0[0] + 63.25)))))))) : (double_Array_0[4] == ((double) double_Array_0[1]))) && (((((((unsigned_long_int_Array_0[3]) > (unsigned_long_int_Array_0[0])) ? (unsigned_long_int_Array_0[3]) : (unsigned_long_int_Array_0[0]))) - unsigned_long_int_Array_0[1]) != (- last_1_unsigned_long_int_Array_0_5_)) ? (unsigned_long_int_Array_0[2] == ((unsigned long int) (((((unsigned_long_int_Array_0[6]) < (unsigned_long_int_Array_0[4])) ? (unsigned_long_int_Array_0[6]) : (unsigned_long_int_Array_0[4]))) - unsigned_long_int_Array_0[1]))) : (unsigned_long_int_Array_0[2] == ((unsigned long int) unsigned_long_int_Array_0[6])))) && ((unsigned_long_int_Array_0[2] <= unsigned_long_int_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] && (unsigned_long_int_Array_0[2] == ((((unsigned_long_int_Array_0[4]) > (unsigned_long_int_Array_0[0])) ? (unsigned_long_int_Array_0[4]) : (unsigned_long_int_Array_0[0]))))) ? ((unsigned_long_int_Array_0[2] < unsigned_long_int_Array_0[3]) ? (unsigned_long_int_Array_0[5] == ((unsigned long int) unsigned_long_int_Array_0[6])) : 1) : 1) : (unsigned_long_int_Array_0[5] == ((unsigned long int) unsigned_long_int_Array_0[4]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] [L100-L101] return ((BOOL_unsigned_char_Array_0[0] ? ((unsigned_long_int_Array_0[2] >= (unsigned_long_int_Array_0[2] / signed_short_int_Array_0[0])) ? (double_Array_0[4] == ((double) ((((double_Array_0[3]) < 0 ) ? -(double_Array_0[3]) : (double_Array_0[3]))))) : (double_Array_0[4] == ((double) (double_Array_0[2] + ((((double_Array_0[1]) > ((double_Array_0[0] + 63.25))) ? (double_Array_0[1]) : ((double_Array_0[0] + 63.25)))))))) : (double_Array_0[4] == ((double) double_Array_0[1]))) && (((((((unsigned_long_int_Array_0[3]) > (unsigned_long_int_Array_0[0])) ? (unsigned_long_int_Array_0[3]) : (unsigned_long_int_Array_0[0]))) - unsigned_long_int_Array_0[1]) != (- last_1_unsigned_long_int_Array_0_5_)) ? (unsigned_long_int_Array_0[2] == ((unsigned long int) (((((unsigned_long_int_Array_0[6]) < (unsigned_long_int_Array_0[4])) ? (unsigned_long_int_Array_0[6]) : (unsigned_long_int_Array_0[4]))) - unsigned_long_int_Array_0[1]))) : (unsigned_long_int_Array_0[2] == ((unsigned long int) unsigned_long_int_Array_0[6])))) && ((unsigned_long_int_Array_0[2] <= unsigned_long_int_Array_0[2]) ? ((BOOL_unsigned_char_Array_0[0] && (unsigned_long_int_Array_0[2] == ((((unsigned_long_int_Array_0[4]) > (unsigned_long_int_Array_0[0])) ? (unsigned_long_int_Array_0[4]) : (unsigned_long_int_Array_0[0]))))) ? ((unsigned_long_int_Array_0[2] < unsigned_long_int_Array_0[3]) ? (unsigned_long_int_Array_0[5] == ((unsigned long int) unsigned_long_int_Array_0[6])) : 1) : 1) : (unsigned_long_int_Array_0[5] == ((unsigned long int) unsigned_long_int_Array_0[4]))) ; [L110] RET, EXPR property() [L110] 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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_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_unsigned_long_int_Array_0_5_=8, signed_short_int_Array_0={6:0}, unsigned_long_int_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 124 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1032 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 508 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 524 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 747 NumberOfCodeBlocks, 747 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 592 ConstructedInterpolants, 0 QuantifiedInterpolants, 596 SizeOfPredicates, 0 NumberOfNonLiveVariables, 485 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2700/2736 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 15:34:10,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/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_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/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_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-51.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/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_6ee92394-d0e2-4c9d-971d-036a30688d82/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 4c325d93e59be9711665baa02e130ec0fdff30298f1a41b16a3d5d6f34a29b0c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:34:12,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:34:12,415 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 15:34:12,421 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:34:12,422 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:34:12,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:34:12,444 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:34:12,444 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:34:12,445 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:34:12,445 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:34:12,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:34:12,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:34:12,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:34:12,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:34:12,446 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:34:12,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:34:12,446 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:34:12,446 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:34:12,446 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:34:12,446 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:34:12,446 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:34:12,446 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:34:12,447 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:34:12,447 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 15:34:12,447 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 15:34:12,447 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 15:34:12,447 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:34:12,447 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:34:12,447 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:34:12,447 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:34:12,447 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:34:12,447 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:34:12,447 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:34:12,448 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:34:12,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:34:12,448 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:34:12,448 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:34:12,449 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:34:12,449 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:34:12,449 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:34:12,449 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:34:12,449 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:34:12,449 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:34:12,449 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:34:12,449 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 15:34:12,449 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 15:34:12,449 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:34:12,450 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:34:12,450 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:34:12,450 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:34:12,450 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_6ee92394-d0e2-4c9d-971d-036a30688d82/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 -> 4c325d93e59be9711665baa02e130ec0fdff30298f1a41b16a3d5d6f34a29b0c [2024-12-02 15:34:12,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:34:12,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:34:12,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:34:12,709 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:34:12,710 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:34:12,711 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-51.i [2024-12-02 15:34:15,400 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/data/d80ea99b1/3ca1422623d94c159876223e330cf447/FLAGdc063cb7b [2024-12-02 15:34:15,607 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:34:15,607 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-51.i [2024-12-02 15:34:15,617 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/data/d80ea99b1/3ca1422623d94c159876223e330cf447/FLAGdc063cb7b [2024-12-02 15:34:15,630 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/data/d80ea99b1/3ca1422623d94c159876223e330cf447 [2024-12-02 15:34:15,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:34:15,633 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:34:15,635 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:34:15,635 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:34:15,640 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:34:15,640 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:34:15" (1/1) ... [2024-12-02 15:34:15,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a4807ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:15, skipping insertion in model container [2024-12-02 15:34:15,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:34:15" (1/1) ... [2024-12-02 15:34:15,657 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:34:15,783 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_6ee92394-d0e2-4c9d-971d-036a30688d82/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-51.i[916,929] [2024-12-02 15:34:15,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:34:15,855 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:34:15,864 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_6ee92394-d0e2-4c9d-971d-036a30688d82/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-51.i[916,929] [2024-12-02 15:34:15,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:34:15,930 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:34:15,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:15 WrapperNode [2024-12-02 15:34:15,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:34:15,932 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:34:15,932 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:34:15,932 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:34:15,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:15" (1/1) ... [2024-12-02 15:34:15,955 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:15" (1/1) ... [2024-12-02 15:34:15,987 INFO L138 Inliner]: procedures = 36, calls = 179, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 552 [2024-12-02 15:34:15,987 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:34:15,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:34:15,988 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:34:15,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:34:15,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:15" (1/1) ... [2024-12-02 15:34:15,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:15" (1/1) ... [2024-12-02 15:34:16,003 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:15" (1/1) ... [2024-12-02 15:34:16,025 INFO L175 MemorySlicer]: Split 145 memory accesses to 5 slices as follows [2, 8, 49, 7, 79]. 54 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 1, 5, 1, 7]. The 18 writes are split as follows [0, 1, 7, 1, 9]. [2024-12-02 15:34:16,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:15" (1/1) ... [2024-12-02 15:34:16,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:15" (1/1) ... [2024-12-02 15:34:16,052 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:15" (1/1) ... [2024-12-02 15:34:16,053 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:15" (1/1) ... [2024-12-02 15:34:16,058 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:15" (1/1) ... [2024-12-02 15:34:16,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:15" (1/1) ... [2024-12-02 15:34:16,065 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:15" (1/1) ... [2024-12-02 15:34:16,071 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:34:16,072 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:34:16,072 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:34:16,072 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:34:16,073 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:15" (1/1) ... [2024-12-02 15:34:16,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:34:16,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:34:16,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:34:16,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:34:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:34:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-12-02 15:34:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-12-02 15:34:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-12-02 15:34:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-12-02 15:34:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-12-02 15:34:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-12-02 15:34:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-12-02 15:34:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-12-02 15:34:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-12-02 15:34:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-12-02 15:34:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 15:34:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 15:34:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-12-02 15:34:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-12-02 15:34:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-12-02 15:34:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-12-02 15:34:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-12-02 15:34:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-12-02 15:34:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-12-02 15:34:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-12-02 15:34:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 15:34:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 15:34:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 15:34:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-12-02 15:34:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-12-02 15:34:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-12-02 15:34:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-12-02 15:34:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-12-02 15:34:16,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-12-02 15:34:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-12-02 15:34:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-12-02 15:34:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-12-02 15:34:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-12-02 15:34:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-12-02 15:34:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-12-02 15:34:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 15:34:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 15:34:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-12-02 15:34:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-12-02 15:34:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-12-02 15:34:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-12-02 15:34:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-12-02 15:34:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-12-02 15:34:16,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-12-02 15:34:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-12-02 15:34:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 15:34:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 15:34:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:34:16,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:34:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 15:34:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 15:34:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-12-02 15:34:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-12-02 15:34:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-12-02 15:34:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-12-02 15:34:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-12-02 15:34:16,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-12-02 15:34:16,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-12-02 15:34:16,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-12-02 15:34:16,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 15:34:16,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 15:34:16,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-12-02 15:34:16,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-12-02 15:34:16,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-12-02 15:34:16,289 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:34:16,290 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:34:18,108 INFO L? ?]: Removed 151 outVars from TransFormulas that were not future-live. [2024-12-02 15:34:18,108 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:34:18,118 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:34:18,118 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 15:34:18,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:34:18 BoogieIcfgContainer [2024-12-02 15:34:18,118 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:34:18,120 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:34:18,120 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:34:18,123 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:34:18,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:34:15" (1/3) ... [2024-12-02 15:34:18,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78862ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:34:18, skipping insertion in model container [2024-12-02 15:34:18,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:15" (2/3) ... [2024-12-02 15:34:18,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78862ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:34:18, skipping insertion in model container [2024-12-02 15:34:18,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:34:18" (3/3) ... [2024-12-02 15:34:18,126 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-51.i [2024-12-02 15:34:18,136 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:34:18,137 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-51.i that has 2 procedures, 124 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 15:34:18,178 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:34:18,187 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;@31389686, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:34:18,187 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 15:34:18,191 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 102 states have (on average 1.4215686274509804) internal successors, (145), 103 states have internal predecessors, (145), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 15:34:18,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 15:34:18,202 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:34:18,203 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:18,203 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:34:18,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:34:18,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1995181470, now seen corresponding path program 1 times [2024-12-02 15:34:18,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:34:18,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959002934] [2024-12-02 15:34:18,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:34:18,217 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:34:18,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:34:18,219 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:34:18,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:34:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:34:18,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 15:34:18,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:34:18,625 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-12-02 15:34:18,625 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:34:18,626 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:34:18,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959002934] [2024-12-02 15:34:18,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [959002934] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:34:18,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:34:18,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:34:18,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858625771] [2024-12-02 15:34:18,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:34:18,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 15:34:18,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:34:18,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 15:34:18,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:34:18,653 INFO L87 Difference]: Start difference. First operand has 124 states, 102 states have (on average 1.4215686274509804) internal successors, (145), 103 states have internal predecessors, (145), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 15:34:18,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:34:18,684 INFO L93 Difference]: Finished difference Result 241 states and 379 transitions. [2024-12-02 15:34:18,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 15:34:18,685 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 149 [2024-12-02 15:34:18,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:34:18,692 INFO L225 Difference]: With dead ends: 241 [2024-12-02 15:34:18,692 INFO L226 Difference]: Without dead ends: 120 [2024-12-02 15:34:18,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 148 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 15:34:18,698 INFO L435 NwaCegarLoop]: 176 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, 176 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 15:34:18,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:34:18,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-12-02 15:34:18,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-12-02 15:34:18,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 99 states have (on average 1.393939393939394) internal successors, (138), 99 states have internal predecessors, (138), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 15:34:18,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 176 transitions. [2024-12-02 15:34:18,738 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 176 transitions. Word has length 149 [2024-12-02 15:34:18,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:34:18,738 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 176 transitions. [2024-12-02 15:34:18,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 15:34:18,739 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 176 transitions. [2024-12-02 15:34:18,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 15:34:18,741 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:34:18,742 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:18,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:34:18,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:34:18,943 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:34:18,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:34:18,943 INFO L85 PathProgramCache]: Analyzing trace with hash -517073916, now seen corresponding path program 1 times [2024-12-02 15:34:18,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:34:18,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [826806803] [2024-12-02 15:34:18,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:34:18,944 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 15:34:18,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:34:18,946 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:34:18,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:34:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:34:19,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:34:19,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:34:19,340 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-12-02 15:34:19,341 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:34:19,341 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:34:19,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [826806803] [2024-12-02 15:34:19,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [826806803] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:34:19,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:34:19,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:34:19,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059674687] [2024-12-02 15:34:19,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:34:19,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:34:19,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:34:19,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:34:19,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:34:19,344 INFO L87 Difference]: Start difference. First operand 120 states and 176 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 15:34:19,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:34:19,467 INFO L93 Difference]: Finished difference Result 239 states and 352 transitions. [2024-12-02 15:34:19,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:34:19,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 149 [2024-12-02 15:34:19,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:34:19,470 INFO L225 Difference]: With dead ends: 239 [2024-12-02 15:34:19,470 INFO L226 Difference]: Without dead ends: 122 [2024-12-02 15:34:19,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 146 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 15:34:19,472 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:34:19,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 511 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:34:19,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-12-02 15:34:19,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-12-02 15:34:19,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 101 states have (on average 1.386138613861386) internal successors, (140), 101 states have internal predecessors, (140), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 15:34:19,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 178 transitions. [2024-12-02 15:34:19,487 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 178 transitions. Word has length 149 [2024-12-02 15:34:19,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:34:19,488 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 178 transitions. [2024-12-02 15:34:19,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 15:34:19,488 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 178 transitions. [2024-12-02 15:34:19,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 15:34:19,491 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:34:19,491 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:19,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 15:34:19,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:34:19,692 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:34:19,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:34:19,692 INFO L85 PathProgramCache]: Analyzing trace with hash -805893306, now seen corresponding path program 1 times [2024-12-02 15:34:19,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:34:19,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [733981656] [2024-12-02 15:34:19,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:34:19,693 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:34:19,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:34:19,695 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:34:19,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 15:34:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:34:20,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 15:34:20,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:34:20,331 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 22 [2024-12-02 15:34:20,406 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:34:20,407 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 43 treesize of output 13 [2024-12-02 15:34:20,459 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 120 proven. 3 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 15:34:20,459 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:34:20,666 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:34:20,666 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:34:20,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [733981656] [2024-12-02 15:34:20,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [733981656] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:34:20,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:34:20,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-12-02 15:34:20,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133690014] [2024-12-02 15:34:20,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:34:20,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:34:20,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:34:20,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:34:20,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:34:20,669 INFO L87 Difference]: Start difference. First operand 122 states and 178 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:34:20,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:34:20,699 INFO L93 Difference]: Finished difference Result 241 states and 353 transitions. [2024-12-02 15:34:20,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:34:20,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2024-12-02 15:34:20,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:34:20,703 INFO L225 Difference]: With dead ends: 241 [2024-12-02 15:34:20,703 INFO L226 Difference]: Without dead ends: 122 [2024-12-02 15:34:20,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:34:20,705 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:34:20,705 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:34:20,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-12-02 15:34:20,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-12-02 15:34:20,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 101 states have (on average 1.3762376237623761) internal successors, (139), 101 states have internal predecessors, (139), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 15:34:20,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 177 transitions. [2024-12-02 15:34:20,717 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 177 transitions. Word has length 149 [2024-12-02 15:34:20,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:34:20,718 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 177 transitions. [2024-12-02 15:34:20,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:34:20,719 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 177 transitions. [2024-12-02 15:34:20,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 15:34:20,721 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:34:20,722 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:20,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 15:34:20,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:34:20,922 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:34:20,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:34:20,923 INFO L85 PathProgramCache]: Analyzing trace with hash 489803607, now seen corresponding path program 1 times [2024-12-02 15:34:20,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:34:20,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615489385] [2024-12-02 15:34:20,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:34:20,924 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 15:34:20,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:34:20,926 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:34:20,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:34:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:34:21,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 15:34:21,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:34:21,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 1 [2024-12-02 15:34:22,195 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:34:22,195 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 138 treesize of output 69 [2024-12-02 15:34:25,350 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:34:25,350 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 148 treesize of output 82 [2024-12-02 15:34:35,421 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:34:35,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 210 treesize of output 126 [2024-12-02 15:34:35,687 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:34:35,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 418 treesize of output 142 [2024-12-02 15:34:35,818 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 116 proven. 192 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-12-02 15:34:35,818 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:34:36,209 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:34:36,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615489385] [2024-12-02 15:34:36,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615489385] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:34:36,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [320045214] [2024-12-02 15:34:36,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:34:36,209 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 15:34:36,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 15:34:36,211 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 15:34:36,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-12-02 15:34:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:34:38,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 15:34:38,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:34:38,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 15:34:46,355 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:34:46,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 124 treesize of output 71 [2024-12-02 15:34:53,680 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:34:53,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 74 [2024-12-02 15:34:56,794 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:34:56,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 174 treesize of output 111 [2024-12-02 15:35:05,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:35:05,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 307 treesize of output 155 [2024-12-02 15:35:05,162 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 60 proven. 192 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-12-02 15:35:05,162 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:35:05,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [320045214] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:35:05,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:35:05,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2024-12-02 15:35:05,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402781986] [2024-12-02 15:35:05,356 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:35:05,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 15:35:05,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:35:05,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 15:35:05,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=376, Unknown=9, NotChecked=0, Total=462 [2024-12-02 15:35:05,358 INFO L87 Difference]: Start difference. First operand 122 states and 177 transitions. Second operand has 19 states, 19 states have (on average 6.578947368421052) internal successors, (125), 18 states have internal predecessors, (125), 7 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2024-12-02 15:35:10,002 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 15:35:14,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:35:18,025 WARN L539 Checker$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 15:35:32,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:35:36,317 WARN L539 Checker$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 15:35:39,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:35:54,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.38s 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 15:35:58,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:36:02,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.61s 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 15:36:06,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:36:10,083 WARN L539 Checker$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 15:36:13,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:36:17,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.83s 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 15:36:21,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:36:24,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s 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 15:36:28,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.82s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:36:32,616 WARN L539 Checker$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 15:36:36,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:36:40,069 WARN L539 Checker$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 15:36:54,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:36:57,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.60s 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 15:37:01,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:37:05,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.71s 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 15:37:09,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:37:13,729 WARN L539 Checker$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 15:37:17,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:37:21,795 WARN L539 Checker$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 15:37:25,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:37:28,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.61s 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 15:37:32,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:37:36,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.83s 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 15:37:40,364 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 15:38:04,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:38:04,005 INFO L93 Difference]: Finished difference Result 419 states and 600 transitions. [2024-12-02 15:38:04,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 15:38:04,007 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.578947368421052) internal successors, (125), 18 states have internal predecessors, (125), 7 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) Word has length 151 [2024-12-02 15:38:04,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:38:04,009 INFO L225 Difference]: With dead ends: 419 [2024-12-02 15:38:04,009 INFO L226 Difference]: Without dead ends: 300 [2024-12-02 15:38:04,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 322 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 78.2s TimeCoverageRelationStatistics Valid=184, Invalid=725, Unknown=21, NotChecked=0, Total=930 [2024-12-02 15:38:04,010 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 767 mSDsluCounter, 1427 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 92 mSolverCounterUnsat, 32 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 133.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 32 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 134.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:38:04,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 1616 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 886 Invalid, 32 Unknown, 0 Unchecked, 134.2s Time] [2024-12-02 15:38:04,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-12-02 15:38:04,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 294. [2024-12-02 15:38:04,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 247 states have (on average 1.3724696356275303) internal successors, (339), 249 states have internal predecessors, (339), 41 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) [2024-12-02 15:38:04,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 421 transitions. [2024-12-02 15:38:04,030 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 421 transitions. Word has length 151 [2024-12-02 15:38:04,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:38:04,030 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 421 transitions. [2024-12-02 15:38:04,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.578947368421052) internal successors, (125), 18 states have internal predecessors, (125), 7 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2024-12-02 15:38:04,030 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 421 transitions. [2024-12-02 15:38:04,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 15:38:04,032 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:38:04,032 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:38:04,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-12-02 15:38:04,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-12-02 15:38:04,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 15:38:04,433 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:38:04,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:38:04,433 INFO L85 PathProgramCache]: Analyzing trace with hash -216792999, now seen corresponding path program 1 times [2024-12-02 15:38:04,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:38:04,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002453703] [2024-12-02 15:38:04,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:38:04,434 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 15:38:04,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:38:04,435 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:38:04,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:38:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:38:04,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:38:04,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:38:04,712 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2024-12-02 15:38:04,712 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:38:04,712 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:38:04,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002453703] [2024-12-02 15:38:04,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002453703] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:38:04,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:38:04,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:38:04,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511309235] [2024-12-02 15:38:04,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:38:04,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:38:04,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:38:04,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:38:04,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:38:04,714 INFO L87 Difference]: Start difference. First operand 294 states and 421 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 15:38:04,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:38:04,807 INFO L93 Difference]: Finished difference Result 585 states and 839 transitions. [2024-12-02 15:38:04,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:38:04,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 151 [2024-12-02 15:38:04,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:38:04,811 INFO L225 Difference]: With dead ends: 585 [2024-12-02 15:38:04,811 INFO L226 Difference]: Without dead ends: 294 [2024-12-02 15:38:04,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 148 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 15:38:04,812 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:38:04,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 511 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:38:04,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-12-02 15:38:04,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2024-12-02 15:38:04,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 247 states have (on average 1.368421052631579) internal successors, (338), 249 states have internal predecessors, (338), 41 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) [2024-12-02 15:38:04,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 420 transitions. [2024-12-02 15:38:04,846 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 420 transitions. Word has length 151 [2024-12-02 15:38:04,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:38:04,846 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 420 transitions. [2024-12-02 15:38:04,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 15:38:04,846 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 420 transitions. [2024-12-02 15:38:04,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 15:38:04,849 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:38:04,849 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:38:04,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:38:05,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:38:05,049 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:38:05,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:38:05,050 INFO L85 PathProgramCache]: Analyzing trace with hash -256659555, now seen corresponding path program 1 times [2024-12-02 15:38:05,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:38:05,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006170128] [2024-12-02 15:38:05,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:38:05,051 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 15:38:05,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:38:05,052 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:38:05,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:38:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:38:05,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 15:38:05,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:38:05,580 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 15:38:06,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:38:06,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 136 treesize of output 67 [2024-12-02 15:38:10,021 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:38:10,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 141 treesize of output 90 [2024-12-02 15:38:21,063 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:38:21,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 218 treesize of output 137 [2024-12-02 15:38:21,312 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:38:21,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 426 treesize of output 144 [2024-12-02 15:38:21,423 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 71 proven. 237 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-12-02 15:38:21,423 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:38:21,756 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:38:21,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006170128] [2024-12-02 15:38:21,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006170128] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:38:21,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1468818027] [2024-12-02 15:38:21,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:38:21,756 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 15:38:21,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 15:38:21,758 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 15:38:21,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-12-02 15:38:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:38:23,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 15:38:23,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:38:24,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 15:38:37,483 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:38:37,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 61 [2024-12-02 15:38:45,737 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:38:45,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 69 [2024-12-02 15:39:00,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:39:00,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 154 treesize of output 115 [2024-12-02 15:39:13,110 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:39:13,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 314 treesize of output 150 [2024-12-02 15:39:13,138 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 71 proven. 237 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-12-02 15:39:13,138 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:39:13,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1468818027] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:39:13,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:39:13,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2024-12-02 15:39:13,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673271650] [2024-12-02 15:39:13,345 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:39:13,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 15:39:13,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:39:13,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 15:39:13,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=677, Unknown=12, NotChecked=0, Total=812 [2024-12-02 15:39:13,346 INFO L87 Difference]: Start difference. First operand 294 states and 420 transitions. Second operand has 26 states, 24 states have (on average 5.5) internal successors, (132), 22 states have internal predecessors, (132), 8 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 7 states have call predecessors, (38), 8 states have call successors, (38) [2024-12-02 15:39:20,152 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 15:39:24,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:39:28,183 WARN L539 Checker$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 15:39:48,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:39:52,281 WARN L539 Checker$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 15:40:11,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:40:15,862 WARN L539 Checker$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 15:40:19,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:40:23,891 WARN L539 Checker$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 15:40:27,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:40:31,939 WARN L539 Checker$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 15:40:35,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:40:39,951 WARN L539 Checker$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 15:40:43,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:40:48,020 WARN L539 Checker$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 15:40:52,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:40:56,073 WARN L539 Checker$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 15:41:00,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:41:04,139 WARN L539 Checker$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 15:41:08,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:41:12,171 WARN L539 Checker$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 15:41:16,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:41:19,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s 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 15:41:39,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:41:43,527 WARN L539 Checker$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 15:41:47,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:41:51,561 WARN L539 Checker$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 15:42:11,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:42:15,792 WARN L539 Checker$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 15:42:19,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:42:23,858 WARN L539 Checker$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 15:42:39,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:42:44,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:42:44,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:42:44,939 INFO L93 Difference]: Finished difference Result 766 states and 1088 transitions. [2024-12-02 15:42:44,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 15:42:44,941 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 5.5) internal successors, (132), 22 states have internal predecessors, (132), 8 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 7 states have call predecessors, (38), 8 states have call successors, (38) Word has length 153 [2024-12-02 15:42:44,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:42:44,944 INFO L225 Difference]: With dead ends: 766 [2024-12-02 15:42:44,944 INFO L226 Difference]: Without dead ends: 475 [2024-12-02 15:42:44,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 318 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 124.4s TimeCoverageRelationStatistics Valid=459, Invalid=1769, Unknown=28, NotChecked=0, Total=2256 [2024-12-02 15:42:44,945 INFO L435 NwaCegarLoop]: 270 mSDtfsCounter, 870 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 1557 mSolverCounterSat, 108 mSolverCounterUnsat, 31 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 144.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 2565 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1557 IncrementalHoareTripleChecker+Invalid, 31 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 145.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:42:44,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 2565 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1557 Invalid, 31 Unknown, 0 Unchecked, 145.2s Time] [2024-12-02 15:42:44,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-12-02 15:42:44,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 295. [2024-12-02 15:42:44,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 248 states have (on average 1.3669354838709677) internal successors, (339), 250 states have internal predecessors, (339), 41 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) [2024-12-02 15:42:44,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 421 transitions. [2024-12-02 15:42:44,981 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 421 transitions. Word has length 153 [2024-12-02 15:42:44,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:42:44,981 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 421 transitions. [2024-12-02 15:42:44,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 5.5) internal successors, (132), 22 states have internal predecessors, (132), 8 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 7 states have call predecessors, (38), 8 states have call successors, (38) [2024-12-02 15:42:44,982 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 421 transitions. [2024-12-02 15:42:44,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 15:42:44,984 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:42:44,984 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:44,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:45,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-12-02 15:42:45,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 15:42:45,385 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:42:45,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:42:45,385 INFO L85 PathProgramCache]: Analyzing trace with hash 690378331, now seen corresponding path program 1 times [2024-12-02 15:42:45,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:42:45,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773837244] [2024-12-02 15:42:45,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:42:45,385 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 15:42:45,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:42:45,387 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:45,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:42:45,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 15:42:45,665 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:42:45,711 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-12-02 15:42:45,711 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:42:45,711 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:42:45,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773837244] [2024-12-02 15:42:45,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [773837244] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:42:45,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:42:45,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:42:45,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834430818] [2024-12-02 15:42:45,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:42:45,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:42:45,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:42:45,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:42:45,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:42:45,712 INFO L87 Difference]: Start difference. First operand 295 states and 421 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 15:42:46,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:42:46,010 INFO L93 Difference]: Finished difference Result 485 states and 684 transitions. [2024-12-02 15:42:46,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:42:46,011 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-12-02 15:42:46,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:42:46,012 INFO L225 Difference]: With dead ends: 485 [2024-12-02 15:42:46,012 INFO L226 Difference]: Without dead ends: 187 [2024-12-02 15:42:46,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:42:46,014 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 1 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:42:46,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 720 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:42:46,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-12-02 15:42:46,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 183. [2024-12-02 15:42:46,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 156 states have (on average 1.3525641025641026) internal successors, (211), 157 states have internal predecessors, (211), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 15:42:46,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 255 transitions. [2024-12-02 15:42:46,040 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 255 transitions. Word has length 153 [2024-12-02 15:42:46,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:42:46,040 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 255 transitions. [2024-12-02 15:42:46,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 15:42:46,041 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 255 transitions. [2024-12-02 15:42:46,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 15:42:46,042 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:42:46,042 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:46,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:46,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:42:46,242 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:42:46,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:42:46,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1301819220, now seen corresponding path program 1 times [2024-12-02 15:42:46,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:42:46,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830553255] [2024-12-02 15:42:46,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:42:46,243 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 15:42:46,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:42:46,244 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:46,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:42:46,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 15:42:46,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:42:47,224 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 88 proven. 51 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2024-12-02 15:42:47,224 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:42:47,371 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:42:47,371 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:42:47,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830553255] [2024-12-02 15:42:47,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1830553255] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:42:47,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:42:47,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-12-02 15:42:47,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126467525] [2024-12-02 15:42:47,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:42:47,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:42:47,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:42:47,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:42:47,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:42:47,372 INFO L87 Difference]: Start difference. First operand 183 states and 255 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:42:47,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:42:47,481 INFO L93 Difference]: Finished difference Result 406 states and 567 transitions. [2024-12-02 15:42:47,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:42:47,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-12-02 15:42:47,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:42:47,483 INFO L225 Difference]: With dead ends: 406 [2024-12-02 15:42:47,483 INFO L226 Difference]: Without dead ends: 226 [2024-12-02 15:42:47,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:42:47,485 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 110 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:42:47,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 491 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:42:47,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-12-02 15:42:47,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 187. [2024-12-02 15:42:47,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 160 states have (on average 1.35625) internal successors, (217), 161 states have internal predecessors, (217), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 15:42:47,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 261 transitions. [2024-12-02 15:42:47,500 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 261 transitions. Word has length 154 [2024-12-02 15:42:47,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:42:47,501 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 261 transitions. [2024-12-02 15:42:47,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:42:47,501 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 261 transitions. [2024-12-02 15:42:47,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 15:42:47,502 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:42:47,502 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:47,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:47,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:42:47,702 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:42:47,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:42:47,703 INFO L85 PathProgramCache]: Analyzing trace with hash -2124586962, now seen corresponding path program 1 times [2024-12-02 15:42:47,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:42:47,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738456201] [2024-12-02 15:42:47,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:42:47,703 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 15:42:47,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:42:47,705 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:47,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:42:48,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 15:42:48,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:42:48,544 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 88 proven. 51 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2024-12-02 15:42:48,544 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:42:48,709 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:42:48,710 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:42:48,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738456201] [2024-12-02 15:42:48,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738456201] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:42:48,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:42:48,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-12-02 15:42:48,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490307553] [2024-12-02 15:42:48,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:42:48,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:42:48,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:42:48,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:42:48,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:42:48,711 INFO L87 Difference]: Start difference. First operand 187 states and 261 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:42:48,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:42:48,813 INFO L93 Difference]: Finished difference Result 402 states and 560 transitions. [2024-12-02 15:42:48,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:42:48,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-12-02 15:42:48,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:42:48,815 INFO L225 Difference]: With dead ends: 402 [2024-12-02 15:42:48,815 INFO L226 Difference]: Without dead ends: 218 [2024-12-02 15:42:48,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:42:48,816 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 42 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:42:48,816 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 653 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:42:48,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-12-02 15:42:48,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 189. [2024-12-02 15:42:48,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 162 states have (on average 1.3518518518518519) internal successors, (219), 163 states have internal predecessors, (219), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 15:42:48,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 263 transitions. [2024-12-02 15:42:48,846 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 263 transitions. Word has length 155 [2024-12-02 15:42:48,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:42:48,846 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 263 transitions. [2024-12-02 15:42:48,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:42:48,847 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 263 transitions. [2024-12-02 15:42:48,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 15:42:48,848 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:42:48,848 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:48,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:49,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:42:49,048 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:42:49,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:42:49,049 INFO L85 PathProgramCache]: Analyzing trace with hash 224413382, now seen corresponding path program 1 times [2024-12-02 15:42:49,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:42:49,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96148775] [2024-12-02 15:42:49,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:42:49,049 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 15:42:49,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:42:49,051 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:49,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:42:49,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 15:42:49,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:42:49,435 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 15:42:49,440 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 19 treesize of output 19 [2024-12-02 15:42:49,547 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:42:49,547 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:42:49,547 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:42:49,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [96148775] [2024-12-02 15:42:49,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [96148775] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:42:49,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:42:49,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:42:49,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029463166] [2024-12-02 15:42:49,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:42:49,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:42:49,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:42:49,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:42:49,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:42:49,548 INFO L87 Difference]: Start difference. First operand 189 states and 263 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:42:50,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:42:50,094 INFO L93 Difference]: Finished difference Result 557 states and 776 transitions. [2024-12-02 15:42:50,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:42:50,094 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-12-02 15:42:50,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:42:50,096 INFO L225 Difference]: With dead ends: 557 [2024-12-02 15:42:50,096 INFO L226 Difference]: Without dead ends: 371 [2024-12-02 15:42:50,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 150 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 15:42:50,097 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 141 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:42:50,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1011 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 15:42:50,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-12-02 15:42:50,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 368. [2024-12-02 15:42:50,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 317 states have (on average 1.3501577287066246) internal successors, (428), 320 states have internal predecessors, (428), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 39 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 15:42:50,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 512 transitions. [2024-12-02 15:42:50,127 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 512 transitions. Word has length 155 [2024-12-02 15:42:50,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:42:50,128 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 512 transitions. [2024-12-02 15:42:50,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:42:50,128 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 512 transitions. [2024-12-02 15:42:50,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 15:42:50,129 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:42:50,129 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:50,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:50,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:42:50,330 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:42:50,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:42:50,330 INFO L85 PathProgramCache]: Analyzing trace with hash -733342417, now seen corresponding path program 1 times [2024-12-02 15:42:50,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:42:50,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269572356] [2024-12-02 15:42:50,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:42:50,331 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 15:42:50,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:42:50,333 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:50,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:42:50,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 15:42:50,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:42:51,439 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 27 treesize of output 15 [2024-12-02 15:42:51,484 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 88 proven. 51 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2024-12-02 15:42:51,484 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:42:51,745 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:42:51,745 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:42:51,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269572356] [2024-12-02 15:42:51,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269572356] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:42:51,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:42:51,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-12-02 15:42:51,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543982012] [2024-12-02 15:42:51,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:42:51,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:42:51,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:42:51,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:42:51,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:42:51,747 INFO L87 Difference]: Start difference. First operand 368 states and 512 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:42:51,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:42:51,947 INFO L93 Difference]: Finished difference Result 794 states and 1101 transitions. [2024-12-02 15:42:51,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:42:51,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 156 [2024-12-02 15:42:51,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:42:51,950 INFO L225 Difference]: With dead ends: 794 [2024-12-02 15:42:51,950 INFO L226 Difference]: Without dead ends: 419 [2024-12-02 15:42:51,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:42:51,951 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 57 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:42:51,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 681 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:42:51,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-12-02 15:42:51,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 366. [2024-12-02 15:42:51,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 315 states have (on average 1.326984126984127) internal successors, (418), 318 states have internal predecessors, (418), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 39 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 15:42:51,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 502 transitions. [2024-12-02 15:42:51,989 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 502 transitions. Word has length 156 [2024-12-02 15:42:51,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:42:51,990 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 502 transitions. [2024-12-02 15:42:51,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:42:51,990 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 502 transitions. [2024-12-02 15:42:51,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 15:42:51,991 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:42:51,991 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:52,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:52,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:42:52,192 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:42:52,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:42:52,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1149925532, now seen corresponding path program 1 times [2024-12-02 15:42:52,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:42:52,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128137116] [2024-12-02 15:42:52,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:42:52,193 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 15:42:52,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:42:52,194 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:52,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:42:52,579 INFO L256 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 15:42:52,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:42:52,681 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 22 [2024-12-02 15:42:52,876 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:42:52,877 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 43 treesize of output 13 [2024-12-02 15:42:52,912 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 120 proven. 3 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 15:42:52,912 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:42:53,064 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:42:53,064 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:42:53,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128137116] [2024-12-02 15:42:53,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128137116] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:42:53,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:42:53,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-12-02 15:42:53,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469860200] [2024-12-02 15:42:53,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:42:53,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:42:53,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:42:53,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:42:53,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:42:53,066 INFO L87 Difference]: Start difference. First operand 366 states and 502 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:42:53,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:42:53,112 INFO L93 Difference]: Finished difference Result 729 states and 1001 transitions. [2024-12-02 15:42:53,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:42:53,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 157 [2024-12-02 15:42:53,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:42:53,114 INFO L225 Difference]: With dead ends: 729 [2024-12-02 15:42:53,114 INFO L226 Difference]: Without dead ends: 366 [2024-12-02 15:42:53,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:42:53,115 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 0 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:42:53,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 340 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:42:53,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-12-02 15:42:53,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2024-12-02 15:42:53,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 315 states have (on average 1.3142857142857143) internal successors, (414), 318 states have internal predecessors, (414), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 39 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 15:42:53,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 498 transitions. [2024-12-02 15:42:53,176 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 498 transitions. Word has length 157 [2024-12-02 15:42:53,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:42:53,176 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 498 transitions. [2024-12-02 15:42:53,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:42:53,176 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 498 transitions. [2024-12-02 15:42:53,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 15:42:53,177 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:42:53,178 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:53,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:53,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:42:53,378 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:42:53,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:42:53,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1781882677, now seen corresponding path program 1 times [2024-12-02 15:42:53,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:42:53,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149471455] [2024-12-02 15:42:53,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:42:53,379 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 15:42:53,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:42:53,380 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:53,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:42:53,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 15:42:53,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:42:53,765 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 15:42:53,843 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:42:53,843 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 39 treesize of output 44 [2024-12-02 15:42:54,092 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:42:54,093 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 53 treesize of output 17 [2024-12-02 15:42:54,127 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:42:54,127 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:42:54,127 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:42:54,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149471455] [2024-12-02 15:42:54,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149471455] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:42:54,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:42:54,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 15:42:54,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339020763] [2024-12-02 15:42:54,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:42:54,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 15:42:54,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:42:54,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 15:42:54,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:42:54,128 INFO L87 Difference]: Start difference. First operand 366 states and 498 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:42:54,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:42:54,956 INFO L93 Difference]: Finished difference Result 828 states and 1128 transitions. [2024-12-02 15:42:54,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:42:54,957 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 157 [2024-12-02 15:42:54,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:42:54,958 INFO L225 Difference]: With dead ends: 828 [2024-12-02 15:42:54,958 INFO L226 Difference]: Without dead ends: 465 [2024-12-02 15:42:54,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:42:54,959 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 60 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:42:54,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 806 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 15:42:54,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-12-02 15:42:54,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 415. [2024-12-02 15:42:54,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 364 states have (on average 1.3241758241758241) internal successors, (482), 367 states have internal predecessors, (482), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 39 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 15:42:55,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 566 transitions. [2024-12-02 15:42:55,001 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 566 transitions. Word has length 157 [2024-12-02 15:42:55,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:42:55,001 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 566 transitions. [2024-12-02 15:42:55,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:42:55,001 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 566 transitions. [2024-12-02 15:42:55,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 15:42:55,002 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:42:55,002 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:55,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:55,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:42:55,203 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:42:55,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:42:55,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1523717239, now seen corresponding path program 1 times [2024-12-02 15:42:55,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:42:55,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038384898] [2024-12-02 15:42:55,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:42:55,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:42:55,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:42:55,205 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:55,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:42:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:42:55,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 15:42:55,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:42:56,118 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 18 treesize of output 7 [2024-12-02 15:42:56,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 treesize of output 3 [2024-12-02 15:42:56,285 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 27 treesize of output 11 [2024-12-02 15:42:56,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2024-12-02 15:42:56,975 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:42:56,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 35 [2024-12-02 15:42:57,198 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:42:57,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 35 [2024-12-02 15:42:57,769 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:42:57,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 60 [2024-12-02 15:42:58,155 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:42:58,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 80 treesize of output 26 [2024-12-02 15:42:58,301 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 83 proven. 411 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 15:42:58,301 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:42:59,063 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:42:59,063 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:42:59,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038384898] [2024-12-02 15:42:59,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038384898] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:42:59,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:42:59,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [21] total 27 [2024-12-02 15:42:59,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405079173] [2024-12-02 15:42:59,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:42:59,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:42:59,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:42:59,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:42:59,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2024-12-02 15:42:59,065 INFO L87 Difference]: Start difference. First operand 415 states and 566 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:00,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:43:00,086 INFO L93 Difference]: Finished difference Result 939 states and 1274 transitions. [2024-12-02 15:43:00,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:43:00,087 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 157 [2024-12-02 15:43:00,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:43:00,088 INFO L225 Difference]: With dead ends: 939 [2024-12-02 15:43:00,088 INFO L226 Difference]: Without dead ends: 527 [2024-12-02 15:43:00,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=128, Invalid=742, Unknown=0, NotChecked=0, Total=870 [2024-12-02 15:43:00,089 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 117 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:43:00,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 925 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 15:43:00,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-12-02 15:43:00,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 524. [2024-12-02 15:43:00,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 457 states have (on average 1.3107221006564551) internal successors, (599), 462 states have internal predecessors, (599), 54 states have call successors, (54), 12 states have call predecessors, (54), 12 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 15:43:00,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 707 transitions. [2024-12-02 15:43:00,156 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 707 transitions. Word has length 157 [2024-12-02 15:43:00,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:43:00,157 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 707 transitions. [2024-12-02 15:43:00,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:00,157 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 707 transitions. [2024-12-02 15:43:00,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 15:43:00,158 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:43:00,158 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:00,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:00,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:43:00,359 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:43:00,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:43:00,359 INFO L85 PathProgramCache]: Analyzing trace with hash -790088269, now seen corresponding path program 1 times [2024-12-02 15:43:00,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:43:00,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857214994] [2024-12-02 15:43:00,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:43:00,360 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 15:43:00,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:43:00,362 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:00,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:43:00,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 15:43:00,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:43:01,221 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 27 treesize of output 15 [2024-12-02 15:43:01,259 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 88 proven. 51 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2024-12-02 15:43:01,259 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:43:01,452 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:43:01,452 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:43:01,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857214994] [2024-12-02 15:43:01,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1857214994] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:43:01,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:43:01,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-12-02 15:43:01,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953837168] [2024-12-02 15:43:01,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:43:01,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:43:01,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:43:01,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:43:01,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:43:01,453 INFO L87 Difference]: Start difference. First operand 524 states and 707 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:01,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:43:01,574 INFO L93 Difference]: Finished difference Result 1017 states and 1369 transitions. [2024-12-02 15:43:01,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:43:01,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 157 [2024-12-02 15:43:01,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:43:01,576 INFO L225 Difference]: With dead ends: 1017 [2024-12-02 15:43:01,576 INFO L226 Difference]: Without dead ends: 496 [2024-12-02 15:43:01,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:43:01,578 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 121 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 538 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 15:43:01,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 538 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:43:01,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-12-02 15:43:01,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 492. [2024-12-02 15:43:01,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 425 states have (on average 1.296470588235294) internal successors, (551), 430 states have internal predecessors, (551), 54 states have call successors, (54), 12 states have call predecessors, (54), 12 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 15:43:01,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 659 transitions. [2024-12-02 15:43:01,645 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 659 transitions. Word has length 157 [2024-12-02 15:43:01,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:43:01,645 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 659 transitions. [2024-12-02 15:43:01,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:01,645 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 659 transitions. [2024-12-02 15:43:01,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 15:43:01,646 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:43:01,646 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:01,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:01,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:43:01,847 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:43:01,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:43:01,847 INFO L85 PathProgramCache]: Analyzing trace with hash 2116722945, now seen corresponding path program 1 times [2024-12-02 15:43:01,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:43:01,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82967110] [2024-12-02 15:43:01,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:43:01,848 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 15:43:01,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:43:01,849 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:01,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:43:02,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 15:43:02,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:43:02,239 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 15:43:02,362 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:02,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 15:43:02,487 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:02,487 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 15 [2024-12-02 15:43:02,523 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:43:02,523 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:43:02,523 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:43:02,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82967110] [2024-12-02 15:43:02,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82967110] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:43:02,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:43:02,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 15:43:02,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999722357] [2024-12-02 15:43:02,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:43:02,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 15:43:02,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:43:02,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 15:43:02,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:43:02,524 INFO L87 Difference]: Start difference. First operand 492 states and 659 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:03,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:43:03,455 INFO L93 Difference]: Finished difference Result 1064 states and 1429 transitions. [2024-12-02 15:43:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:43:03,456 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 157 [2024-12-02 15:43:03,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:43:03,458 INFO L225 Difference]: With dead ends: 1064 [2024-12-02 15:43:03,458 INFO L226 Difference]: Without dead ends: 575 [2024-12-02 15:43:03,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:43:03,459 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 63 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 15:43:03,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1040 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 15:43:03,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-12-02 15:43:03,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 531. [2024-12-02 15:43:03,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 464 states have (on average 1.3017241379310345) internal successors, (604), 469 states have internal predecessors, (604), 54 states have call successors, (54), 12 states have call predecessors, (54), 12 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 15:43:03,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 712 transitions. [2024-12-02 15:43:03,513 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 712 transitions. Word has length 157 [2024-12-02 15:43:03,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:43:03,513 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 712 transitions. [2024-12-02 15:43:03,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:03,513 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 712 transitions. [2024-12-02 15:43:03,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 15:43:03,514 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:43:03,514 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:03,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:03,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:43:03,715 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:43:03,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:43:03,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1723695935, now seen corresponding path program 1 times [2024-12-02 15:43:03,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:43:03,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725428414] [2024-12-02 15:43:03,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:43:03,716 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 15:43:03,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:43:03,717 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:03,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:43:04,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 15:43:04,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:43:04,770 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 18 treesize of output 7 [2024-12-02 15:43:04,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 treesize of output 3 [2024-12-02 15:43:04,948 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 27 treesize of output 11 [2024-12-02 15:43:05,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2024-12-02 15:43:05,719 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:05,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 35 [2024-12-02 15:43:05,955 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:05,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 35 [2024-12-02 15:43:06,467 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:06,468 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 49 treesize of output 35 [2024-12-02 15:43:06,790 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 83 proven. 411 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 15:43:06,790 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:43:07,521 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:43:07,522 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:43:07,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725428414] [2024-12-02 15:43:07,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725428414] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:43:07,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:43:07,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 25 [2024-12-02 15:43:07,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215000370] [2024-12-02 15:43:07,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:43:07,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:43:07,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:43:07,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:43:07,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2024-12-02 15:43:07,523 INFO L87 Difference]: Start difference. First operand 531 states and 712 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:08,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:43:08,934 INFO L93 Difference]: Finished difference Result 1134 states and 1523 transitions. [2024-12-02 15:43:08,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:43:08,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 157 [2024-12-02 15:43:08,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:43:08,937 INFO L225 Difference]: With dead ends: 1134 [2024-12-02 15:43:08,937 INFO L226 Difference]: Without dead ends: 606 [2024-12-02 15:43:08,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2024-12-02 15:43:08,938 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 147 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:43:08,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 712 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 15:43:08,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-12-02 15:43:08,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 531. [2024-12-02 15:43:08,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 464 states have (on average 1.3017241379310345) internal successors, (604), 469 states have internal predecessors, (604), 54 states have call successors, (54), 12 states have call predecessors, (54), 12 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 15:43:08,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 712 transitions. [2024-12-02 15:43:08,977 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 712 transitions. Word has length 157 [2024-12-02 15:43:08,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:43:08,978 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 712 transitions. [2024-12-02 15:43:08,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:08,978 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 712 transitions. [2024-12-02 15:43:08,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 15:43:08,979 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:43:08,979 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:08,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:09,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:43:09,180 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:43:09,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:43:09,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1641334067, now seen corresponding path program 1 times [2024-12-02 15:43:09,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:43:09,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718443669] [2024-12-02 15:43:09,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:43:09,180 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 15:43:09,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:43:09,182 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:09,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-12-02 15:43:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:43:09,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 15:43:09,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:43:10,171 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 18 treesize of output 7 [2024-12-02 15:43:10,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 treesize of output 3 [2024-12-02 15:43:10,332 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 27 treesize of output 11 [2024-12-02 15:43:10,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2024-12-02 15:43:11,042 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:11,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 35 [2024-12-02 15:43:11,253 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:11,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 35 [2024-12-02 15:43:11,807 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:11,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 61 [2024-12-02 15:43:12,203 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:12,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 88 treesize of output 32 [2024-12-02 15:43:12,332 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 83 proven. 411 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 15:43:12,332 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:43:13,046 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:43:13,046 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:43:13,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718443669] [2024-12-02 15:43:13,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718443669] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:43:13,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:43:13,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [21] total 27 [2024-12-02 15:43:13,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369358009] [2024-12-02 15:43:13,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:43:13,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:43:13,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:43:13,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:43:13,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2024-12-02 15:43:13,048 INFO L87 Difference]: Start difference. First operand 531 states and 712 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:14,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:43:14,009 INFO L93 Difference]: Finished difference Result 1122 states and 1499 transitions. [2024-12-02 15:43:14,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:43:14,010 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 157 [2024-12-02 15:43:14,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:43:14,011 INFO L225 Difference]: With dead ends: 1122 [2024-12-02 15:43:14,011 INFO L226 Difference]: Without dead ends: 594 [2024-12-02 15:43:14,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=128, Invalid=742, Unknown=0, NotChecked=0, Total=870 [2024-12-02 15:43:14,012 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 432 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:43:14,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 771 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 15:43:14,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-12-02 15:43:14,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 483. [2024-12-02 15:43:14,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 419 states have (on average 1.295942720763723) internal successors, (543), 423 states have internal predecessors, (543), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 15:43:14,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 645 transitions. [2024-12-02 15:43:14,048 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 645 transitions. Word has length 157 [2024-12-02 15:43:14,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:43:14,049 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 645 transitions. [2024-12-02 15:43:14,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:14,049 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 645 transitions. [2024-12-02 15:43:14,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 15:43:14,049 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:43:14,049 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:14,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-12-02 15:43:14,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:43:14,250 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:43:14,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:43:14,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1383168629, now seen corresponding path program 1 times [2024-12-02 15:43:14,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:43:14,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488141658] [2024-12-02 15:43:14,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:43:14,251 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 15:43:14,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:43:14,252 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:14,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:43:14,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 15:43:14,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:43:14,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 15:43:14,745 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:14,745 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 37 treesize of output 42 [2024-12-02 15:43:14,979 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:14,980 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 49 treesize of output 17 [2024-12-02 15:43:15,018 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:43:15,018 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:43:15,018 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:43:15,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488141658] [2024-12-02 15:43:15,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488141658] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:43:15,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:43:15,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 15:43:15,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934227689] [2024-12-02 15:43:15,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:43:15,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 15:43:15,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:43:15,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 15:43:15,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:43:15,020 INFO L87 Difference]: Start difference. First operand 483 states and 645 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:15,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:43:15,944 INFO L93 Difference]: Finished difference Result 938 states and 1252 transitions. [2024-12-02 15:43:15,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:43:15,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 157 [2024-12-02 15:43:15,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:43:15,946 INFO L225 Difference]: With dead ends: 938 [2024-12-02 15:43:15,946 INFO L226 Difference]: Without dead ends: 513 [2024-12-02 15:43:15,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:43:15,947 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 53 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 15:43:15,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1083 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 15:43:15,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-12-02 15:43:15,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 471. [2024-12-02 15:43:15,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 407 states have (on average 1.2923832923832923) internal successors, (526), 411 states have internal predecessors, (526), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 15:43:15,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 628 transitions. [2024-12-02 15:43:15,998 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 628 transitions. Word has length 157 [2024-12-02 15:43:15,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:43:15,998 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 628 transitions. [2024-12-02 15:43:15,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:15,998 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 628 transitions. [2024-12-02 15:43:15,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 15:43:15,998 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:43:15,999 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:16,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:16,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:43:16,199 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:43:16,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:43:16,200 INFO L85 PathProgramCache]: Analyzing trace with hash -2037695741, now seen corresponding path program 1 times [2024-12-02 15:43:16,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:43:16,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47836986] [2024-12-02 15:43:16,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:43:16,200 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 15:43:16,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:43:16,202 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:16,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:43:16,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 15:43:16,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:43:17,175 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 18 treesize of output 7 [2024-12-02 15:43:17,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 treesize of output 3 [2024-12-02 15:43:17,341 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 27 treesize of output 11 [2024-12-02 15:43:17,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2024-12-02 15:43:18,038 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:18,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 35 [2024-12-02 15:43:18,252 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:18,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 35 [2024-12-02 15:43:18,762 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:18,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 36 [2024-12-02 15:43:19,080 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 83 proven. 411 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 15:43:19,080 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:43:19,788 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:43:19,788 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:43:19,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47836986] [2024-12-02 15:43:19,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47836986] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:43:19,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:43:19,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 25 [2024-12-02 15:43:19,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139523341] [2024-12-02 15:43:19,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:43:19,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:43:19,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:43:19,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:43:19,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2024-12-02 15:43:19,789 INFO L87 Difference]: Start difference. First operand 471 states and 628 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:21,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:43:21,384 INFO L93 Difference]: Finished difference Result 998 states and 1333 transitions. [2024-12-02 15:43:21,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:43:21,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 157 [2024-12-02 15:43:21,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:43:21,387 INFO L225 Difference]: With dead ends: 998 [2024-12-02 15:43:21,387 INFO L226 Difference]: Without dead ends: 585 [2024-12-02 15:43:21,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2024-12-02 15:43:21,388 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 155 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:43:21,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 881 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 15:43:21,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-12-02 15:43:21,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 471. [2024-12-02 15:43:21,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 407 states have (on average 1.2923832923832923) internal successors, (526), 411 states have internal predecessors, (526), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 15:43:21,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 628 transitions. [2024-12-02 15:43:21,429 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 628 transitions. Word has length 157 [2024-12-02 15:43:21,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:43:21,429 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 628 transitions. [2024-12-02 15:43:21,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:21,429 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 628 transitions. [2024-12-02 15:43:21,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 15:43:21,431 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:43:21,431 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:21,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:21,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:43:21,631 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:43:21,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:43:21,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1864244545, now seen corresponding path program 1 times [2024-12-02 15:43:21,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:43:21,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712312994] [2024-12-02 15:43:21,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:43:21,632 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 15:43:21,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:43:21,634 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:21,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:43:22,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 15:43:22,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:43:22,031 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 15:43:22,128 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:22,129 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 15:43:22,229 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:22,229 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 35 treesize of output 15 [2024-12-02 15:43:22,262 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:43:22,262 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:43:22,262 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:43:22,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712312994] [2024-12-02 15:43:22,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712312994] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:43:22,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:43:22,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 15:43:22,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401932201] [2024-12-02 15:43:22,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:43:22,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 15:43:22,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:43:22,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 15:43:22,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:43:22,263 INFO L87 Difference]: Start difference. First operand 471 states and 628 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:23,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:43:23,017 INFO L93 Difference]: Finished difference Result 928 states and 1238 transitions. [2024-12-02 15:43:23,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:43:23,018 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 157 [2024-12-02 15:43:23,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:43:23,019 INFO L225 Difference]: With dead ends: 928 [2024-12-02 15:43:23,019 INFO L226 Difference]: Without dead ends: 515 [2024-12-02 15:43:23,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:43:23,020 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 61 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:43:23,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 912 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 15:43:23,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-12-02 15:43:23,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 432. [2024-12-02 15:43:23,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 368 states have (on average 1.2798913043478262) internal successors, (471), 372 states have internal predecessors, (471), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 15:43:23,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 573 transitions. [2024-12-02 15:43:23,071 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 573 transitions. Word has length 157 [2024-12-02 15:43:23,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:43:23,071 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 573 transitions. [2024-12-02 15:43:23,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:23,071 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 573 transitions. [2024-12-02 15:43:23,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 15:43:23,072 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:43:23,073 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:23,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:23,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:43:23,273 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:43:23,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:43:23,273 INFO L85 PathProgramCache]: Analyzing trace with hash -43558842, now seen corresponding path program 1 times [2024-12-02 15:43:23,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:43:23,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091670020] [2024-12-02 15:43:23,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:43:23,274 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 15:43:23,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:43:23,276 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:23,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:43:23,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 15:43:23,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:43:23,688 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 15:43:23,707 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:23,707 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 28 treesize of output 31 [2024-12-02 15:43:23,938 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:43:23,938 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:43:23,938 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:43:23,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091670020] [2024-12-02 15:43:23,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091670020] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:43:23,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:43:23,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:43:23,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040362030] [2024-12-02 15:43:23,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:43:23,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 15:43:23,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:43:23,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 15:43:23,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:43:23,939 INFO L87 Difference]: Start difference. First operand 432 states and 573 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:24,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:43:24,959 INFO L93 Difference]: Finished difference Result 968 states and 1285 transitions. [2024-12-02 15:43:24,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:43:24,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 159 [2024-12-02 15:43:24,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:43:24,961 INFO L225 Difference]: With dead ends: 968 [2024-12-02 15:43:24,961 INFO L226 Difference]: Without dead ends: 594 [2024-12-02 15:43:24,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:43:24,963 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 124 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 15:43:24,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 1460 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 15:43:24,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-12-02 15:43:25,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 591. [2024-12-02 15:43:25,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 509 states have (on average 1.2829076620825148) internal successors, (653), 515 states have internal predecessors, (653), 65 states have call successors, (65), 16 states have call predecessors, (65), 16 states have return successors, (65), 59 states have call predecessors, (65), 65 states have call successors, (65) [2024-12-02 15:43:25,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 783 transitions. [2024-12-02 15:43:25,047 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 783 transitions. Word has length 159 [2024-12-02 15:43:25,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:43:25,048 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 783 transitions. [2024-12-02 15:43:25,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:25,048 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 783 transitions. [2024-12-02 15:43:25,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 15:43:25,049 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:43:25,049 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:25,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:25,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:43:25,250 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:43:25,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:43:25,250 INFO L85 PathProgramCache]: Analyzing trace with hash 636499528, now seen corresponding path program 1 times [2024-12-02 15:43:25,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:43:25,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413370978] [2024-12-02 15:43:25,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:43:25,251 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 15:43:25,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:43:25,252 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:25,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:43:25,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 15:43:25,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:43:25,811 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 15:43:25,964 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:25,964 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 44 treesize of output 25 [2024-12-02 15:43:26,067 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:26,067 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 43 treesize of output 13 [2024-12-02 15:43:26,101 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 120 proven. 3 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 15:43:26,101 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:43:26,368 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:43:26,369 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:43:26,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413370978] [2024-12-02 15:43:26,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413370978] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:43:26,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:43:26,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-12-02 15:43:26,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741623236] [2024-12-02 15:43:26,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:43:26,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:43:26,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:43:26,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:43:26,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:43:26,370 INFO L87 Difference]: Start difference. First operand 591 states and 783 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:26,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:43:26,873 INFO L93 Difference]: Finished difference Result 1137 states and 1507 transitions. [2024-12-02 15:43:26,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:43:26,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 159 [2024-12-02 15:43:26,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:43:26,876 INFO L225 Difference]: With dead ends: 1137 [2024-12-02 15:43:26,876 INFO L226 Difference]: Without dead ends: 604 [2024-12-02 15:43:26,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:43:26,876 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 132 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:43:26,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 650 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 15:43:26,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-12-02 15:43:26,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 601. [2024-12-02 15:43:26,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 512 states have (on average 1.275390625) internal successors, (653), 518 states have internal predecessors, (653), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (71), 65 states have call predecessors, (71), 71 states have call successors, (71) [2024-12-02 15:43:26,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 795 transitions. [2024-12-02 15:43:26,962 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 795 transitions. Word has length 159 [2024-12-02 15:43:26,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:43:26,962 INFO L471 AbstractCegarLoop]: Abstraction has 601 states and 795 transitions. [2024-12-02 15:43:26,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:26,962 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 795 transitions. [2024-12-02 15:43:26,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 15:43:26,963 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:43:26,963 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:26,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:27,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:43:27,164 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:43:27,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:43:27,164 INFO L85 PathProgramCache]: Analyzing trace with hash -177572348, now seen corresponding path program 1 times [2024-12-02 15:43:27,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:43:27,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035744747] [2024-12-02 15:43:27,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:43:27,165 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 15:43:27,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:43:27,166 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:27,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:43:27,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 15:43:27,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:43:27,627 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 15:43:27,721 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 29 treesize of output 13 [2024-12-02 15:43:28,098 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:28,098 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 45 treesize of output 26 [2024-12-02 15:43:28,204 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:28,205 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 44 treesize of output 14 [2024-12-02 15:43:28,249 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 239 proven. 9 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2024-12-02 15:43:28,249 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:43:28,581 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:43:28,582 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:43:28,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035744747] [2024-12-02 15:43:28,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035744747] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:43:28,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:43:28,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-12-02 15:43:28,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267455331] [2024-12-02 15:43:28,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:43:28,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:43:28,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:43:28,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:43:28,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-12-02 15:43:28,583 INFO L87 Difference]: Start difference. First operand 601 states and 795 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:29,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:43:29,181 INFO L93 Difference]: Finished difference Result 1147 states and 1514 transitions. [2024-12-02 15:43:29,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:43:29,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 159 [2024-12-02 15:43:29,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:43:29,184 INFO L225 Difference]: With dead ends: 1147 [2024-12-02 15:43:29,184 INFO L226 Difference]: Without dead ends: 608 [2024-12-02 15:43:29,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-12-02 15:43:29,185 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 130 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:43:29,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 809 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 15:43:29,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-12-02 15:43:29,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 605. [2024-12-02 15:43:29,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 515 states have (on average 1.2699029126213592) internal successors, (654), 521 states have internal predecessors, (654), 71 states have call successors, (71), 18 states have call predecessors, (71), 18 states have return successors, (71), 65 states have call predecessors, (71), 71 states have call successors, (71) [2024-12-02 15:43:29,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 796 transitions. [2024-12-02 15:43:29,245 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 796 transitions. Word has length 159 [2024-12-02 15:43:29,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:43:29,245 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 796 transitions. [2024-12-02 15:43:29,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:29,245 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 796 transitions. [2024-12-02 15:43:29,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 15:43:29,246 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:43:29,246 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:29,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:29,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:43:29,446 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:43:29,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:43:29,447 INFO L85 PathProgramCache]: Analyzing trace with hash 502486022, now seen corresponding path program 1 times [2024-12-02 15:43:29,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:43:29,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395156127] [2024-12-02 15:43:29,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:43:29,447 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 15:43:29,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:43:29,449 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:29,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:43:29,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 15:43:29,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:43:29,886 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 15:43:29,905 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:29,906 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 28 treesize of output 31 [2024-12-02 15:43:30,202 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:43:30,202 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:43:30,202 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:43:30,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395156127] [2024-12-02 15:43:30,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1395156127] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:43:30,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:43:30,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:43:30,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859422180] [2024-12-02 15:43:30,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:43:30,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 15:43:30,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:43:30,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 15:43:30,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:43:30,204 INFO L87 Difference]: Start difference. First operand 605 states and 796 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:31,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:43:31,670 INFO L93 Difference]: Finished difference Result 1156 states and 1518 transitions. [2024-12-02 15:43:31,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:43:31,671 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 159 [2024-12-02 15:43:31,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:43:31,673 INFO L225 Difference]: With dead ends: 1156 [2024-12-02 15:43:31,673 INFO L226 Difference]: Without dead ends: 613 [2024-12-02 15:43:31,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:43:31,674 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 120 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:43:31,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1710 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 15:43:31,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2024-12-02 15:43:31,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 611. [2024-12-02 15:43:31,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 520 states have (on average 1.2653846153846153) internal successors, (658), 526 states have internal predecessors, (658), 71 states have call successors, (71), 19 states have call predecessors, (71), 19 states have return successors, (71), 65 states have call predecessors, (71), 71 states have call successors, (71) [2024-12-02 15:43:31,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 800 transitions. [2024-12-02 15:43:31,731 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 800 transitions. Word has length 159 [2024-12-02 15:43:31,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:43:31,731 INFO L471 AbstractCegarLoop]: Abstraction has 611 states and 800 transitions. [2024-12-02 15:43:31,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:31,731 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 800 transitions. [2024-12-02 15:43:31,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 15:43:31,732 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:43:31,732 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:31,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:31,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:43:31,933 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:43:31,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:43:31,933 INFO L85 PathProgramCache]: Analyzing trace with hash 770948852, now seen corresponding path program 1 times [2024-12-02 15:43:31,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:43:31,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783793646] [2024-12-02 15:43:31,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:43:31,934 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 15:43:31,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:43:31,935 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:31,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:43:32,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 15:43:32,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:43:32,321 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:43:32,321 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:43:32,321 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:43:32,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783793646] [2024-12-02 15:43:32,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783793646] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:43:32,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:43:32,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 15:43:32,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630671294] [2024-12-02 15:43:32,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:43:32,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:43:32,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:43:32,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:43:32,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:43:32,323 INFO L87 Difference]: Start difference. First operand 611 states and 800 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:32,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:43:32,489 INFO L93 Difference]: Finished difference Result 643 states and 837 transitions. [2024-12-02 15:43:32,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:43:32,489 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2024-12-02 15:43:32,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:43:32,491 INFO L225 Difference]: With dead ends: 643 [2024-12-02 15:43:32,491 INFO L226 Difference]: Without dead ends: 641 [2024-12-02 15:43:32,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:43:32,491 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:43:32,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 997 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:43:32,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-12-02 15:43:32,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2024-12-02 15:43:32,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 550 states have (on average 1.250909090909091) internal successors, (688), 556 states have internal predecessors, (688), 71 states have call successors, (71), 19 states have call predecessors, (71), 19 states have return successors, (71), 65 states have call predecessors, (71), 71 states have call successors, (71) [2024-12-02 15:43:32,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 830 transitions. [2024-12-02 15:43:32,549 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 830 transitions. Word has length 160 [2024-12-02 15:43:32,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:43:32,549 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 830 transitions. [2024-12-02 15:43:32,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:32,550 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 830 transitions. [2024-12-02 15:43:32,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 15:43:32,550 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:43:32,550 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:32,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:32,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:43:32,751 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:43:32,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:43:32,751 INFO L85 PathProgramCache]: Analyzing trace with hash -995165690, now seen corresponding path program 1 times [2024-12-02 15:43:32,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:43:32,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047447915] [2024-12-02 15:43:32,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:43:32,752 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 15:43:32,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:43:32,753 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:32,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:43:33,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 15:43:33,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:43:33,798 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 22 [2024-12-02 15:43:34,294 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 414 proven. 30 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-12-02 15:43:34,294 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:43:39,860 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:43:39,860 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:43:39,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047447915] [2024-12-02 15:43:39,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047447915] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:43:39,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:43:39,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2024-12-02 15:43:39,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562173066] [2024-12-02 15:43:39,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:43:39,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:43:39,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:43:39,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:43:39,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-12-02 15:43:39,862 INFO L87 Difference]: Start difference. First operand 641 states and 830 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:51,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:43:51,418 INFO L93 Difference]: Finished difference Result 1487 states and 1919 transitions. [2024-12-02 15:43:51,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:43:51,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2024-12-02 15:43:51,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:43:51,427 INFO L225 Difference]: With dead ends: 1487 [2024-12-02 15:43:51,427 INFO L226 Difference]: Without dead ends: 908 [2024-12-02 15:43:51,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-12-02 15:43:51,428 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 262 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-12-02 15:43:51,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 678 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2024-12-02 15:43:51,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2024-12-02 15:43:51,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 903. [2024-12-02 15:43:51,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 785 states have (on average 1.2535031847133757) internal successors, (984), 794 states have internal predecessors, (984), 89 states have call successors, (89), 28 states have call predecessors, (89), 28 states have return successors, (89), 80 states have call predecessors, (89), 89 states have call successors, (89) [2024-12-02 15:43:51,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1162 transitions. [2024-12-02 15:43:51,502 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1162 transitions. Word has length 160 [2024-12-02 15:43:51,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:43:51,502 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 1162 transitions. [2024-12-02 15:43:51,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:43:51,502 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1162 transitions. [2024-12-02 15:43:51,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 15:43:51,503 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:43:51,503 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:51,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:51,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:43:51,703 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:43:51,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:43:51,704 INFO L85 PathProgramCache]: Analyzing trace with hash -594735811, now seen corresponding path program 1 times [2024-12-02 15:43:51,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:43:51,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018264174] [2024-12-02 15:43:51,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:43:51,704 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 15:43:51,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:43:51,706 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:51,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:43:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:43:52,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 15:43:52,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:43:52,887 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 22 [2024-12-02 15:43:53,124 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:43:53,124 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 43 treesize of output 13 [2024-12-02 15:43:53,135 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 15:43:53,322 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 414 proven. 30 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-12-02 15:43:53,322 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:44:08,555 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 16 [2024-12-02 15:44:12,100 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 72 proven. 33 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2024-12-02 15:44:12,100 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:44:12,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018264174] [2024-12-02 15:44:12,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018264174] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:44:12,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:44:12,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2024-12-02 15:44:12,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327708268] [2024-12-02 15:44:12,101 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:44:12,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 15:44:12,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:44:12,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 15:44:12,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2024-12-02 15:44:12,103 INFO L87 Difference]: Start difference. First operand 903 states and 1162 transitions. Second operand has 23 states, 19 states have (on average 5.421052631578948) internal successors, (103), 23 states have internal predecessors, (103), 8 states have call successors, (30), 3 states have call predecessors, (30), 7 states have return successors, (30), 4 states have call predecessors, (30), 8 states have call successors, (30) [2024-12-02 15:44:38,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:44:38,995 INFO L93 Difference]: Finished difference Result 1536 states and 1953 transitions. [2024-12-02 15:44:38,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 15:44:38,996 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 5.421052631578948) internal successors, (103), 23 states have internal predecessors, (103), 8 states have call successors, (30), 3 states have call predecessors, (30), 7 states have return successors, (30), 4 states have call predecessors, (30), 8 states have call successors, (30) Word has length 160 [2024-12-02 15:44:38,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:44:38,999 INFO L225 Difference]: With dead ends: 1536 [2024-12-02 15:44:38,999 INFO L226 Difference]: Without dead ends: 695 [2024-12-02 15:44:39,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 297 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=328, Invalid=932, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 15:44:39,001 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 1270 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:44:39,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 1057 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 23.0s Time] [2024-12-02 15:44:39,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2024-12-02 15:44:39,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 661. [2024-12-02 15:44:39,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 563 states have (on average 1.2309058614564832) internal successors, (693), 569 states have internal predecessors, (693), 71 states have call successors, (71), 26 states have call predecessors, (71), 26 states have return successors, (71), 65 states have call predecessors, (71), 71 states have call successors, (71) [2024-12-02 15:44:39,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 835 transitions. [2024-12-02 15:44:39,071 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 835 transitions. Word has length 160 [2024-12-02 15:44:39,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:44:39,071 INFO L471 AbstractCegarLoop]: Abstraction has 661 states and 835 transitions. [2024-12-02 15:44:39,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 5.421052631578948) internal successors, (103), 23 states have internal predecessors, (103), 8 states have call successors, (30), 3 states have call predecessors, (30), 7 states have return successors, (30), 4 states have call predecessors, (30), 8 states have call successors, (30) [2024-12-02 15:44:39,071 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 835 transitions. [2024-12-02 15:44:39,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 15:44:39,072 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:44:39,072 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:44:39,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:44:39,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:44:39,272 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:44:39,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:44:39,273 INFO L85 PathProgramCache]: Analyzing trace with hash -673275171, now seen corresponding path program 1 times [2024-12-02 15:44:39,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:44:39,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569402631] [2024-12-02 15:44:39,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:44:39,273 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 15:44:39,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:44:39,274 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:44:39,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:44:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:44:39,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 15:44:39,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:44:39,922 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 15:44:42,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:44:42,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 191 treesize of output 101 [2024-12-02 15:44:43,575 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:44:43,576 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 347 treesize of output 119 [2024-12-02 15:44:43,876 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2024-12-02 15:44:43,876 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:44:43,876 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:44:43,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569402631] [2024-12-02 15:44:43,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569402631] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:44:43,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:44:43,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 15:44:43,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719471407] [2024-12-02 15:44:43,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:44:43,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 15:44:43,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:44:43,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 15:44:43,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-12-02 15:44:43,878 INFO L87 Difference]: Start difference. First operand 661 states and 835 transitions. Second operand has 15 states, 15 states have (on average 4.733333333333333) internal successors, (71), 14 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 15:44:51,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:44:51,774 INFO L93 Difference]: Finished difference Result 1964 states and 2464 transitions. [2024-12-02 15:44:51,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 15:44:51,776 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.733333333333333) internal successors, (71), 14 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 160 [2024-12-02 15:44:51,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:44:51,780 INFO L225 Difference]: With dead ends: 1964 [2024-12-02 15:44:51,780 INFO L226 Difference]: Without dead ends: 1369 [2024-12-02 15:44:51,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2024-12-02 15:44:51,781 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 370 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:44:51,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 2233 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1234 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-12-02 15:44:51,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2024-12-02 15:44:51,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 917. [2024-12-02 15:44:51,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 762 states have (on average 1.2217847769028871) internal successors, (931), 771 states have internal predecessors, (931), 113 states have call successors, (113), 41 states have call predecessors, (113), 41 states have return successors, (113), 104 states have call predecessors, (113), 113 states have call successors, (113) [2024-12-02 15:44:51,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1157 transitions. [2024-12-02 15:44:51,937 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1157 transitions. Word has length 160 [2024-12-02 15:44:51,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:44:51,937 INFO L471 AbstractCegarLoop]: Abstraction has 917 states and 1157 transitions. [2024-12-02 15:44:51,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.733333333333333) internal successors, (71), 14 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 15:44:51,937 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1157 transitions. [2024-12-02 15:44:51,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 15:44:51,938 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:44:51,938 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:44:51,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:44:52,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:44:52,138 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:44:52,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:44:52,139 INFO L85 PathProgramCache]: Analyzing trace with hash -272845292, now seen corresponding path program 1 times [2024-12-02 15:44:52,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:44:52,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840774772] [2024-12-02 15:44:52,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:44:52,139 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:44:52,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:44:52,141 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:44:52,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:44:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:44:52,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 15:44:52,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:44:53,155 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 22 [2024-12-02 15:44:53,781 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:44:53,781 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 43 treesize of output 13 [2024-12-02 15:44:53,792 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 15:44:54,042 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 414 proven. 30 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-12-02 15:44:54,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:45:01,445 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:45:01,445 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:45:01,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840774772] [2024-12-02 15:45:01,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840774772] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:45:01,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:45:01,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2024-12-02 15:45:01,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253201539] [2024-12-02 15:45:01,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:45:01,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:45:01,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:45:01,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:45:01,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-12-02 15:45:01,447 INFO L87 Difference]: Start difference. First operand 917 states and 1157 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:45:17,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:45:17,311 INFO L93 Difference]: Finished difference Result 1986 states and 2486 transitions. [2024-12-02 15:45:17,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:45:17,317 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2024-12-02 15:45:17,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:45:17,319 INFO L225 Difference]: With dead ends: 1986 [2024-12-02 15:45:17,319 INFO L226 Difference]: Without dead ends: 1156 [2024-12-02 15:45:17,320 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2024-12-02 15:45:17,321 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 181 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:45:17,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 553 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 15.0s Time] [2024-12-02 15:45:17,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2024-12-02 15:45:17,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1133. [2024-12-02 15:45:17,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1133 states, 948 states have (on average 1.209915611814346) internal successors, (1147), 960 states have internal predecessors, (1147), 131 states have call successors, (131), 53 states have call predecessors, (131), 53 states have return successors, (131), 119 states have call predecessors, (131), 131 states have call successors, (131) [2024-12-02 15:45:17,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1409 transitions. [2024-12-02 15:45:17,464 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1409 transitions. Word has length 160 [2024-12-02 15:45:17,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:45:17,464 INFO L471 AbstractCegarLoop]: Abstraction has 1133 states and 1409 transitions. [2024-12-02 15:45:17,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:45:17,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1409 transitions. [2024-12-02 15:45:17,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 15:45:17,464 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:45:17,465 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:45:17,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-12-02 15:45:17,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:45:17,665 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:45:17,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:45:17,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1005918309, now seen corresponding path program 1 times [2024-12-02 15:45:17,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:45:17,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933838954] [2024-12-02 15:45:17,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:45:17,666 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 15:45:17,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:45:17,668 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:45:17,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:45:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:45:18,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:45:18,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:45:18,092 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2024-12-02 15:45:18,092 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:45:18,093 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:45:18,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1933838954] [2024-12-02 15:45:18,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1933838954] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:45:18,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:45:18,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:45:18,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063240771] [2024-12-02 15:45:18,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:45:18,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:45:18,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:45:18,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:45:18,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:45:18,094 INFO L87 Difference]: Start difference. First operand 1133 states and 1409 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 15:45:18,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:45:18,365 INFO L93 Difference]: Finished difference Result 2198 states and 2731 transitions. [2024-12-02 15:45:18,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:45:18,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 160 [2024-12-02 15:45:18,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:45:18,369 INFO L225 Difference]: With dead ends: 2198 [2024-12-02 15:45:18,369 INFO L226 Difference]: Without dead ends: 1133 [2024-12-02 15:45:18,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 157 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 15:45:18,370 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:45:18,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 481 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:45:18,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2024-12-02 15:45:18,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 1133. [2024-12-02 15:45:18,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1133 states, 948 states have (on average 1.2025316455696202) internal successors, (1140), 960 states have internal predecessors, (1140), 131 states have call successors, (131), 53 states have call predecessors, (131), 53 states have return successors, (131), 119 states have call predecessors, (131), 131 states have call successors, (131) [2024-12-02 15:45:18,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1402 transitions. [2024-12-02 15:45:18,520 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1402 transitions. Word has length 160 [2024-12-02 15:45:18,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:45:18,520 INFO L471 AbstractCegarLoop]: Abstraction has 1133 states and 1402 transitions. [2024-12-02 15:45:18,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 15:45:18,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1402 transitions. [2024-12-02 15:45:18,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 15:45:18,521 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:45:18,521 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:45:18,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 15:45:18,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:45:18,721 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:45:18,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:45:18,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1432299503, now seen corresponding path program 1 times [2024-12-02 15:45:18,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:45:18,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461509026] [2024-12-02 15:45:18,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:45:18,722 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 15:45:18,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:45:18,724 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:45:18,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:45:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:45:19,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 15:45:19,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:45:19,826 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 88 proven. 51 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2024-12-02 15:45:19,826 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:45:20,068 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:45:20,068 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:45:20,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461509026] [2024-12-02 15:45:20,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461509026] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:45:20,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:45:20,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-12-02 15:45:20,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901419110] [2024-12-02 15:45:20,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:45:20,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:45:20,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:45:20,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:45:20,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:45:20,069 INFO L87 Difference]: Start difference. First operand 1133 states and 1402 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:45:20,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:45:20,347 INFO L93 Difference]: Finished difference Result 2158 states and 2671 transitions. [2024-12-02 15:45:20,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:45:20,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-12-02 15:45:20,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:45:20,351 INFO L225 Difference]: With dead ends: 2158 [2024-12-02 15:45:20,351 INFO L226 Difference]: Without dead ends: 1112 [2024-12-02 15:45:20,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:45:20,352 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 17 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:45:20,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 607 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:45:20,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2024-12-02 15:45:20,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1112. [2024-12-02 15:45:20,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 927 states have (on average 1.190938511326861) internal successors, (1104), 939 states have internal predecessors, (1104), 131 states have call successors, (131), 53 states have call predecessors, (131), 53 states have return successors, (131), 119 states have call predecessors, (131), 131 states have call successors, (131) [2024-12-02 15:45:20,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1366 transitions. [2024-12-02 15:45:20,521 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1366 transitions. Word has length 162 [2024-12-02 15:45:20,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:45:20,522 INFO L471 AbstractCegarLoop]: Abstraction has 1112 states and 1366 transitions. [2024-12-02 15:45:20,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:45:20,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1366 transitions. [2024-12-02 15:45:20,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 15:45:20,523 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:45:20,523 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:45:20,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2024-12-02 15:45:20,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:45:20,723 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:45:20,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:45:20,724 INFO L85 PathProgramCache]: Analyzing trace with hash 637206359, now seen corresponding path program 1 times [2024-12-02 15:45:20,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:45:20,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362083233] [2024-12-02 15:45:20,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:45:20,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:45:20,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:45:20,726 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:45:20,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-12-02 15:45:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:45:21,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 15:45:21,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:45:22,900 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:45:22,900 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 107 treesize of output 35 [2024-12-02 15:45:22,981 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 288 proven. 39 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-12-02 15:45:22,982 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:45:23,745 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:45:23,745 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 111 treesize of output 1 [2024-12-02 15:45:23,776 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 15 proven. 39 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-12-02 15:45:23,776 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:45:23,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362083233] [2024-12-02 15:45:23,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362083233] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:45:23,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:45:23,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-12-02 15:45:23,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809564638] [2024-12-02 15:45:23,776 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:45:23,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 15:45:23,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:45:23,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 15:45:23,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-12-02 15:45:23,778 INFO L87 Difference]: Start difference. First operand 1112 states and 1366 transitions. Second operand has 15 states, 13 states have (on average 10.307692307692308) internal successors, (134), 15 states have internal predecessors, (134), 6 states have call successors, (38), 3 states have call predecessors, (38), 5 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) [2024-12-02 15:45:29,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:45:29,084 INFO L93 Difference]: Finished difference Result 3177 states and 3852 transitions. [2024-12-02 15:45:29,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 15:45:29,085 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 10.307692307692308) internal successors, (134), 15 states have internal predecessors, (134), 6 states have call successors, (38), 3 states have call predecessors, (38), 5 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) Word has length 162 [2024-12-02 15:45:29,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:45:29,090 INFO L225 Difference]: With dead ends: 3177 [2024-12-02 15:45:29,090 INFO L226 Difference]: Without dead ends: 2152 [2024-12-02 15:45:29,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2024-12-02 15:45:29,091 INFO L435 NwaCegarLoop]: 296 mSDtfsCounter, 331 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:45:29,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 2207 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-12-02 15:45:29,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2152 states. [2024-12-02 15:45:29,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2152 to 808. [2024-12-02 15:45:29,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 661 states have (on average 1.172465960665658) internal successors, (775), 667 states have internal predecessors, (775), 104 states have call successors, (104), 42 states have call predecessors, (104), 42 states have return successors, (104), 98 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 15:45:29,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 983 transitions. [2024-12-02 15:45:29,214 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 983 transitions. Word has length 162 [2024-12-02 15:45:29,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:45:29,215 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 983 transitions. [2024-12-02 15:45:29,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 10.307692307692308) internal successors, (134), 15 states have internal predecessors, (134), 6 states have call successors, (38), 3 states have call predecessors, (38), 5 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) [2024-12-02 15:45:29,215 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 983 transitions. [2024-12-02 15:45:29,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 15:45:29,215 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:45:29,216 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:45:29,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2024-12-02 15:45:29,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:45:29,416 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:45:29,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:45:29,416 INFO L85 PathProgramCache]: Analyzing trace with hash -383861995, now seen corresponding path program 1 times [2024-12-02 15:45:29,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:45:29,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791333574] [2024-12-02 15:45:29,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:45:29,417 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 15:45:29,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:45:29,418 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:45:29,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:45:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:45:29,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 15:45:29,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:45:30,098 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 15:45:33,603 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:45:33,604 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 141 treesize of output 57 [2024-12-02 15:45:33,696 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:45:33,697 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 162 treesize of output 54 [2024-12-02 15:45:33,804 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 293 proven. 39 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-12-02 15:45:33,805 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:45:34,673 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 15 proven. 39 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-12-02 15:45:34,673 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:45:34,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791333574] [2024-12-02 15:45:34,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791333574] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:45:34,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:45:34,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2024-12-02 15:45:34,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760886376] [2024-12-02 15:45:34,673 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:45:34,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 15:45:34,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:45:34,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 15:45:34,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2024-12-02 15:45:34,675 INFO L87 Difference]: Start difference. First operand 808 states and 983 transitions. Second operand has 17 states, 15 states have (on average 9.266666666666667) internal successors, (139), 16 states have internal predecessors, (139), 6 states have call successors, (38), 4 states have call predecessors, (38), 5 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) [2024-12-02 15:45:39,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:45:39,552 INFO L93 Difference]: Finished difference Result 2351 states and 2834 transitions. [2024-12-02 15:45:39,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 15:45:39,553 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 9.266666666666667) internal successors, (139), 16 states have internal predecessors, (139), 6 states have call successors, (38), 4 states have call predecessors, (38), 5 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) Word has length 162 [2024-12-02 15:45:39,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:45:39,557 INFO L225 Difference]: With dead ends: 2351 [2024-12-02 15:45:39,557 INFO L226 Difference]: Without dead ends: 1634 [2024-12-02 15:45:39,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2024-12-02 15:45:39,558 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 605 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 128 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-12-02 15:45:39,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 1805 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1113 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2024-12-02 15:45:39,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2024-12-02 15:45:39,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 808. [2024-12-02 15:45:39,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 661 states have (on average 1.1664145234493193) internal successors, (771), 667 states have internal predecessors, (771), 104 states have call successors, (104), 42 states have call predecessors, (104), 42 states have return successors, (104), 98 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 15:45:39,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 979 transitions. [2024-12-02 15:45:39,679 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 979 transitions. Word has length 162 [2024-12-02 15:45:39,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:45:39,679 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 979 transitions. [2024-12-02 15:45:39,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 9.266666666666667) internal successors, (139), 16 states have internal predecessors, (139), 6 states have call successors, (38), 4 states have call predecessors, (38), 5 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) [2024-12-02 15:45:39,679 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 979 transitions. [2024-12-02 15:45:39,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 15:45:39,680 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:45:39,680 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:45:39,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2024-12-02 15:45:39,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:45:39,880 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:45:39,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:45:39,881 INFO L85 PathProgramCache]: Analyzing trace with hash 317202583, now seen corresponding path program 1 times [2024-12-02 15:45:39,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:45:39,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [567600713] [2024-12-02 15:45:39,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:45:39,881 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 15:45:39,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:45:39,883 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:45:39,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:45:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:45:40,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 15:45:40,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:45:40,579 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 30 treesize of output 1 [2024-12-02 15:45:42,420 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:45:42,421 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 188 treesize of output 98 [2024-12-02 15:45:42,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:45:42,823 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 290 treesize of output 98 [2024-12-02 15:45:43,174 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 13 proven. 319 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-12-02 15:45:43,174 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:45:44,133 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:45:44,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [567600713] [2024-12-02 15:45:44,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [567600713] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:45:44,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2065656145] [2024-12-02 15:45:44,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:45:44,134 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 15:45:44,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 15:45:44,136 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 15:45:44,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2024-12-02 15:45:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:45:46,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 15:45:46,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:45:47,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 15:45:59,270 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:45:59,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 98 [2024-12-02 15:46:02,091 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:46:02,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 153 treesize of output 65 [2024-12-02 15:46:06,431 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 293 proven. 39 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-12-02 15:46:06,431 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:46:07,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2065656145] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:46:07,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:46:07,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 29 [2024-12-02 15:46:07,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492321012] [2024-12-02 15:46:07,757 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:46:07,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-12-02 15:46:07,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:46:07,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-12-02 15:46:07,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=1354, Unknown=2, NotChecked=0, Total=1560 [2024-12-02 15:46:07,758 INFO L87 Difference]: Start difference. First operand 808 states and 979 transitions. Second operand has 30 states, 28 states have (on average 5.107142857142857) internal successors, (143), 27 states have internal predecessors, (143), 6 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) [2024-12-02 15:46:20,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:46:20,122 INFO L93 Difference]: Finished difference Result 2209 states and 2659 transitions. [2024-12-02 15:46:20,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 15:46:20,123 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 5.107142857142857) internal successors, (143), 27 states have internal predecessors, (143), 6 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) Word has length 162 [2024-12-02 15:46:20,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:46:20,127 INFO L225 Difference]: With dead ends: 2209 [2024-12-02 15:46:20,127 INFO L226 Difference]: Without dead ends: 1492 [2024-12-02 15:46:20,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 344 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 19.2s TimeCoverageRelationStatistics Valid=380, Invalid=2168, Unknown=2, NotChecked=0, Total=2550 [2024-12-02 15:46:20,128 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 687 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 2334 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:46:20,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 2334 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2024-12-02 15:46:20,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2024-12-02 15:46:20,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1026. [2024-12-02 15:46:20,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 822 states have (on average 1.1581508515815084) internal successors, (952), 831 states have internal predecessors, (952), 146 states have call successors, (146), 57 states have call predecessors, (146), 57 states have return successors, (146), 137 states have call predecessors, (146), 146 states have call successors, (146) [2024-12-02 15:46:20,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1244 transitions. [2024-12-02 15:46:20,306 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1244 transitions. Word has length 162 [2024-12-02 15:46:20,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:46:20,306 INFO L471 AbstractCegarLoop]: Abstraction has 1026 states and 1244 transitions. [2024-12-02 15:46:20,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 5.107142857142857) internal successors, (143), 27 states have internal predecessors, (143), 6 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) [2024-12-02 15:46:20,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1244 transitions. [2024-12-02 15:46:20,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 15:46:20,307 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:46:20,307 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:20,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2024-12-02 15:46:20,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2024-12-02 15:46:20,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:46:20,708 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:46:20,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:20,708 INFO L85 PathProgramCache]: Analyzing trace with hash -2048832487, now seen corresponding path program 1 times [2024-12-02 15:46:20,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:46:20,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989219678] [2024-12-02 15:46:20,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:46:20,708 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 15:46:20,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:46:20,710 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:20,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:46:21,105 INFO L256 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 15:46:21,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:46:21,177 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-12-02 15:46:21,177 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:46:21,177 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:46:21,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989219678] [2024-12-02 15:46:21,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989219678] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:46:21,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:46:21,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:46:21,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950056750] [2024-12-02 15:46:21,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:21,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:46:21,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:46:21,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:46:21,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:46:21,179 INFO L87 Difference]: Start difference. First operand 1026 states and 1244 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 15:46:21,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:46:21,731 INFO L93 Difference]: Finished difference Result 1783 states and 2144 transitions. [2024-12-02 15:46:21,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:46:21,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 162 [2024-12-02 15:46:21,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:46:21,734 INFO L225 Difference]: With dead ends: 1783 [2024-12-02 15:46:21,734 INFO L226 Difference]: Without dead ends: 830 [2024-12-02 15:46:21,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:46:21,736 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 1 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:46:21,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 660 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:46:21,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-12-02 15:46:21,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 786. [2024-12-02 15:46:21,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 639 states have (on average 1.1549295774647887) internal successors, (738), 645 states have internal predecessors, (738), 104 states have call successors, (104), 42 states have call predecessors, (104), 42 states have return successors, (104), 98 states have call predecessors, (104), 104 states have call successors, (104) [2024-12-02 15:46:21,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 946 transitions. [2024-12-02 15:46:21,868 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 946 transitions. Word has length 162 [2024-12-02 15:46:21,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:46:21,869 INFO L471 AbstractCegarLoop]: Abstraction has 786 states and 946 transitions. [2024-12-02 15:46:21,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 15:46:21,869 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 946 transitions. [2024-12-02 15:46:21,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-12-02 15:46:21,870 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:46:21,870 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:21,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:22,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:46:22,071 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:46:22,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:22,071 INFO L85 PathProgramCache]: Analyzing trace with hash -814486418, now seen corresponding path program 1 times [2024-12-02 15:46:22,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:46:22,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544135107] [2024-12-02 15:46:22,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:46:22,072 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 15:46:22,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:46:22,074 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:22,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:46:22,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 15:46:22,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:46:22,811 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:46:22,812 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 35 treesize of output 11 [2024-12-02 15:46:22,881 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:46:22,882 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:46:22,882 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:46:22,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544135107] [2024-12-02 15:46:22,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [544135107] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:46:22,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:46:22,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:46:22,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450864736] [2024-12-02 15:46:22,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:22,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 15:46:22,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:46:22,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 15:46:22,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:46:22,883 INFO L87 Difference]: Start difference. First operand 786 states and 946 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:46:24,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:46:24,733 INFO L93 Difference]: Finished difference Result 2029 states and 2430 transitions. [2024-12-02 15:46:24,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 15:46:24,734 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 173 [2024-12-02 15:46:24,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:46:24,737 INFO L225 Difference]: With dead ends: 2029 [2024-12-02 15:46:24,738 INFO L226 Difference]: Without dead ends: 1334 [2024-12-02 15:46:24,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:46:24,739 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 105 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:46:24,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 923 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 15:46:24,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2024-12-02 15:46:24,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1040. [2024-12-02 15:46:24,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 859 states have (on average 1.1466821885913854) internal successors, (985), 867 states have internal predecessors, (985), 129 states have call successors, (129), 51 states have call predecessors, (129), 51 states have return successors, (129), 121 states have call predecessors, (129), 129 states have call successors, (129) [2024-12-02 15:46:24,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1243 transitions. [2024-12-02 15:46:24,916 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1243 transitions. Word has length 173 [2024-12-02 15:46:24,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:46:24,916 INFO L471 AbstractCegarLoop]: Abstraction has 1040 states and 1243 transitions. [2024-12-02 15:46:24,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:46:24,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1243 transitions. [2024-12-02 15:46:24,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-12-02 15:46:24,917 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:46:24,917 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:24,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:25,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:46:25,118 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:46:25,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:25,118 INFO L85 PathProgramCache]: Analyzing trace with hash -113421840, now seen corresponding path program 1 times [2024-12-02 15:46:25,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:46:25,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1804748483] [2024-12-02 15:46:25,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:46:25,119 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 15:46:25,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:46:25,120 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:25,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:46:25,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 15:46:25,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:46:25,724 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 22 [2024-12-02 15:46:26,549 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 120 proven. 3 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 15:46:26,549 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:46:27,333 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:46:27,334 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:46:27,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1804748483] [2024-12-02 15:46:27,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1804748483] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:46:27,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:46:27,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-12-02 15:46:27,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041760694] [2024-12-02 15:46:27,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:27,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:46:27,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:46:27,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:46:27,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-12-02 15:46:27,335 INFO L87 Difference]: Start difference. First operand 1040 states and 1243 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:46:28,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:46:28,658 INFO L93 Difference]: Finished difference Result 2301 states and 2736 transitions. [2024-12-02 15:46:28,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:46:28,659 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 173 [2024-12-02 15:46:28,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:46:28,662 INFO L225 Difference]: With dead ends: 2301 [2024-12-02 15:46:28,662 INFO L226 Difference]: Without dead ends: 1352 [2024-12-02 15:46:28,663 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2024-12-02 15:46:28,663 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 164 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 15:46:28,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 702 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 15:46:28,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2024-12-02 15:46:28,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1144. [2024-12-02 15:46:28,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 963 states have (on average 1.1391484942886811) internal successors, (1097), 971 states have internal predecessors, (1097), 129 states have call successors, (129), 51 states have call predecessors, (129), 51 states have return successors, (129), 121 states have call predecessors, (129), 129 states have call successors, (129) [2024-12-02 15:46:28,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1355 transitions. [2024-12-02 15:46:28,838 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1355 transitions. Word has length 173 [2024-12-02 15:46:28,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:46:28,838 INFO L471 AbstractCegarLoop]: Abstraction has 1144 states and 1355 transitions. [2024-12-02 15:46:28,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:46:28,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1355 transitions. [2024-12-02 15:46:28,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-12-02 15:46:28,839 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:46:28,839 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:28,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:29,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:46:29,040 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:46:29,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:29,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1658491920, now seen corresponding path program 1 times [2024-12-02 15:46:29,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:46:29,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426489112] [2024-12-02 15:46:29,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:46:29,040 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 15:46:29,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:46:29,042 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:29,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:46:29,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 15:46:29,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:46:29,689 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:46:29,689 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 31 treesize of output 11 [2024-12-02 15:46:29,715 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:46:29,715 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:46:29,715 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:46:29,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426489112] [2024-12-02 15:46:29,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426489112] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:46:29,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:46:29,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:46:29,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203159707] [2024-12-02 15:46:29,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:29,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:46:29,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:46:29,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:46:29,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:46:29,717 INFO L87 Difference]: Start difference. First operand 1144 states and 1355 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:46:30,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:46:30,629 INFO L93 Difference]: Finished difference Result 2395 states and 2834 transitions. [2024-12-02 15:46:30,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:46:30,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 173 [2024-12-02 15:46:30,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:46:30,634 INFO L225 Difference]: With dead ends: 2395 [2024-12-02 15:46:30,634 INFO L226 Difference]: Without dead ends: 1342 [2024-12-02 15:46:30,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 169 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 15:46:30,636 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 87 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:46:30,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 777 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 15:46:30,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2024-12-02 15:46:30,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1144. [2024-12-02 15:46:30,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 963 states have (on average 1.1370716510903427) internal successors, (1095), 971 states have internal predecessors, (1095), 129 states have call successors, (129), 51 states have call predecessors, (129), 51 states have return successors, (129), 121 states have call predecessors, (129), 129 states have call successors, (129) [2024-12-02 15:46:30,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1353 transitions. [2024-12-02 15:46:30,815 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1353 transitions. Word has length 173 [2024-12-02 15:46:30,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:46:30,815 INFO L471 AbstractCegarLoop]: Abstraction has 1144 states and 1353 transitions. [2024-12-02 15:46:30,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:46:30,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1353 transitions. [2024-12-02 15:46:30,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-12-02 15:46:30,816 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:46:30,816 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:30,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:31,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:46:31,017 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:46:31,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:31,017 INFO L85 PathProgramCache]: Analyzing trace with hash -957427342, now seen corresponding path program 1 times [2024-12-02 15:46:31,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:46:31,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242400055] [2024-12-02 15:46:31,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:46:31,018 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 15:46:31,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:46:31,019 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:31,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:46:31,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 15:46:31,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:46:31,697 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:46:31,697 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 31 treesize of output 11 [2024-12-02 15:46:31,762 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:46:31,762 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:46:31,762 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:46:31,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242400055] [2024-12-02 15:46:31,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242400055] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:46:31,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:46:31,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:46:31,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84910906] [2024-12-02 15:46:31,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:31,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 15:46:31,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:46:31,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 15:46:31,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:46:31,763 INFO L87 Difference]: Start difference. First operand 1144 states and 1353 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:46:33,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:46:33,232 INFO L93 Difference]: Finished difference Result 2496 states and 2932 transitions. [2024-12-02 15:46:33,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 15:46:33,233 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 173 [2024-12-02 15:46:33,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:46:33,238 INFO L225 Difference]: With dead ends: 2496 [2024-12-02 15:46:33,238 INFO L226 Difference]: Without dead ends: 1443 [2024-12-02 15:46:33,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:46:33,240 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 82 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:46:33,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1026 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 15:46:33,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2024-12-02 15:46:33,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1257. [2024-12-02 15:46:33,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1076 states have (on average 1.1263940520446096) internal successors, (1212), 1084 states have internal predecessors, (1212), 129 states have call successors, (129), 51 states have call predecessors, (129), 51 states have return successors, (129), 121 states have call predecessors, (129), 129 states have call successors, (129) [2024-12-02 15:46:33,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1470 transitions. [2024-12-02 15:46:33,433 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1470 transitions. Word has length 173 [2024-12-02 15:46:33,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:46:33,433 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 1470 transitions. [2024-12-02 15:46:33,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:46:33,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1470 transitions. [2024-12-02 15:46:33,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-12-02 15:46:33,435 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:46:33,435 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:33,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:33,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:46:33,635 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:46:33,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:33,636 INFO L85 PathProgramCache]: Analyzing trace with hash -579347480, now seen corresponding path program 1 times [2024-12-02 15:46:33,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:46:33,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546518776] [2024-12-02 15:46:33,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:46:33,636 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 15:46:33,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:46:33,638 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:33,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:46:34,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 15:46:34,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:46:34,231 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 15:46:34,236 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 19 treesize of output 19 [2024-12-02 15:46:34,538 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:46:34,538 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:46:34,538 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:46:34,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546518776] [2024-12-02 15:46:34,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546518776] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:46:34,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:46:34,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:46:34,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159099111] [2024-12-02 15:46:34,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:34,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 15:46:34,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:46:34,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 15:46:34,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:46:34,539 INFO L87 Difference]: Start difference. First operand 1257 states and 1470 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 9 states have internal predecessors, (82), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:46:35,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:46:35,900 INFO L93 Difference]: Finished difference Result 1789 states and 2075 transitions. [2024-12-02 15:46:35,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 15:46:35,901 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 9 states have internal predecessors, (82), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 174 [2024-12-02 15:46:35,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:46:35,906 INFO L225 Difference]: With dead ends: 1789 [2024-12-02 15:46:35,906 INFO L226 Difference]: Without dead ends: 1787 [2024-12-02 15:46:35,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-12-02 15:46:35,907 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 100 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 15:46:35,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 1829 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 15:46:35,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2024-12-02 15:46:36,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1636. [2024-12-02 15:46:36,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1413 states have (on average 1.113234253361642) internal successors, (1573), 1423 states have internal predecessors, (1573), 158 states have call successors, (158), 64 states have call predecessors, (158), 64 states have return successors, (158), 148 states have call predecessors, (158), 158 states have call successors, (158) [2024-12-02 15:46:36,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 1889 transitions. [2024-12-02 15:46:36,145 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 1889 transitions. Word has length 174 [2024-12-02 15:46:36,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:46:36,146 INFO L471 AbstractCegarLoop]: Abstraction has 1636 states and 1889 transitions. [2024-12-02 15:46:36,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 9 states have internal predecessors, (82), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:46:36,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 1889 transitions. [2024-12-02 15:46:36,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-12-02 15:46:36,147 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:46:36,147 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:36,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:36,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:46:36,347 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:46:36,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:46:36,348 INFO L85 PathProgramCache]: Analyzing trace with hash -651734038, now seen corresponding path program 1 times [2024-12-02 15:46:36,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:46:36,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455050032] [2024-12-02 15:46:36,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:46:36,348 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 15:46:36,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:46:36,350 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:36,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:46:36,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 15:46:36,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:46:36,949 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 22 [2024-12-02 15:46:37,648 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:46:37,649 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 59 treesize of output 17 [2024-12-02 15:46:37,704 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 120 proven. 3 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 15:46:37,704 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:46:38,184 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 15:46:38,184 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:46:38,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455050032] [2024-12-02 15:46:38,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455050032] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:46:38,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:46:38,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-12-02 15:46:38,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976653430] [2024-12-02 15:46:38,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:46:38,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:46:38,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:46:38,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:46:38,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:46:38,185 INFO L87 Difference]: Start difference. First operand 1636 states and 1889 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:46:39,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:46:39,179 INFO L93 Difference]: Finished difference Result 3404 states and 3931 transitions. [2024-12-02 15:46:39,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:46:39,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 174 [2024-12-02 15:46:39,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:46:39,181 INFO L225 Difference]: With dead ends: 3404 [2024-12-02 15:46:39,181 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 15:46:39,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-12-02 15:46:39,184 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 90 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:46:39,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 718 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 15:46:39,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 15:46:39,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 15:46:39,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:46:39,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 15:46:39,186 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2024-12-02 15:46:39,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:46:39,186 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 15:46:39,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 15:46:39,186 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 15:46:39,187 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 15:46:39,188 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 15:46:39,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:46:39,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee92394-d0e2-4c9d-971d-036a30688d82/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.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 15:46:39,391 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:46:39,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.