./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.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_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b01652b30ec09a692ad6378ed531eb12202ad1b62f1f35df71071640dd6a83a1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:04:56,290 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:04:56,381 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:04:56,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:04:56,390 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:04:56,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:04:56,425 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:04:56,425 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:04:56,426 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:04:56,426 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:04:56,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:04:56,426 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:04:56,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:04:56,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:04:56,426 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:04:56,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:04:56,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:04:56,427 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:04:56,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:04:56,427 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:04:56,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:04:56,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:04:56,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:04:56,428 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:04:56,428 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:04:56,428 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:04:56,429 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:04:56,430 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:04:56,430 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:04:56,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:04:56,430 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:04:56,431 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:04:56,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:04:56,431 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:04:56,431 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:04:56,431 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:04:56,431 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:04:56,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:04:56,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:04:56,431 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:04:56,432 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:04:56,432 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:04:56,432 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:04:56,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:04:56,432 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:04:56,432 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:04:56,432 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:04:56,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:04:56,433 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_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b01652b30ec09a692ad6378ed531eb12202ad1b62f1f35df71071640dd6a83a1 [2024-11-27 20:04:56,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:04:56,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:04:56,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:04:56,751 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:04:56,752 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:04:56,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i [2024-11-27 20:04:59,663 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/data/cccaad587/287c6856c2e0446e98ad05f6d0a5a5bf/FLAG5d6104b69 [2024-11-27 20:05:00,020 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:05:00,021 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i [2024-11-27 20:05:00,032 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/data/cccaad587/287c6856c2e0446e98ad05f6d0a5a5bf/FLAG5d6104b69 [2024-11-27 20:05:00,221 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/data/cccaad587/287c6856c2e0446e98ad05f6d0a5a5bf [2024-11-27 20:05:00,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:05:00,226 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:05:00,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:05:00,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:05:00,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:05:00,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:05:00" (1/1) ... [2024-11-27 20:05:00,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec3c80d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:00, skipping insertion in model container [2024-11-27 20:05:00,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:05:00" (1/1) ... [2024-11-27 20:05:00,260 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:05:00,397 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_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i[916,929] [2024-11-27 20:05:00,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:05:00,463 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:05:00,471 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_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i[916,929] [2024-11-27 20:05:00,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:05:00,529 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:05:00,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:00 WrapperNode [2024-11-27 20:05:00,530 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:05:00,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:05:00,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:05:00,531 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:05:00,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:00" (1/1) ... [2024-11-27 20:05:00,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:00" (1/1) ... [2024-11-27 20:05:00,588 INFO L138 Inliner]: procedures = 30, calls = 173, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 490 [2024-11-27 20:05:00,588 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:05:00,589 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:05:00,589 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:05:00,589 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:05:00,598 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:00" (1/1) ... [2024-11-27 20:05:00,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:00" (1/1) ... [2024-11-27 20:05:00,603 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:00" (1/1) ... [2024-11-27 20:05:00,609 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-27 20:05:00,610 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:00" (1/1) ... [2024-11-27 20:05:00,610 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:00" (1/1) ... [2024-11-27 20:05:00,633 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:00" (1/1) ... [2024-11-27 20:05:00,638 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:00" (1/1) ... [2024-11-27 20:05:00,649 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:00" (1/1) ... [2024-11-27 20:05:00,656 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:00" (1/1) ... [2024-11-27 20:05:00,657 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:00" (1/1) ... [2024-11-27 20:05:00,665 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:05:00,666 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:05:00,666 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:05:00,666 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:05:00,667 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:00" (1/1) ... [2024-11-27 20:05:00,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:05:00,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:05:00,706 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:05:00,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:05:00,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:05:00,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-27 20:05:00,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-27 20:05:00,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-27 20:05:00,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 20:05:00,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-27 20:05:00,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 20:05:00,739 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:05:00,739 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:05:00,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 20:05:00,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:05:00,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:05:00,886 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:05:00,888 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:05:01,883 INFO L? ?]: Removed 114 outVars from TransFormulas that were not future-live. [2024-11-27 20:05:01,883 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:05:01,903 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:05:01,903 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:05:01,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:05:01 BoogieIcfgContainer [2024-11-27 20:05:01,903 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:05:01,907 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:05:01,907 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:05:01,913 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:05:01,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:05:00" (1/3) ... [2024-11-27 20:05:01,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a05ba86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:05:01, skipping insertion in model container [2024-11-27 20:05:01,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:00" (2/3) ... [2024-11-27 20:05:01,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a05ba86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:05:01, skipping insertion in model container [2024-11-27 20:05:01,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:05:01" (3/3) ... [2024-11-27 20:05:01,916 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-10.i [2024-11-27 20:05:01,937 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:05:01,938 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-10.i that has 2 procedures, 111 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:05:02,006 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:05:02,024 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;@46354c9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:05:02,024 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:05:02,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 89 states have (on average 1.3820224719101124) internal successors, (123), 90 states have internal predecessors, (123), 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) [2024-11-27 20:05:02,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 20:05:02,043 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:02,045 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] [2024-11-27 20:05:02,046 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:02,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:02,053 INFO L85 PathProgramCache]: Analyzing trace with hash 891622394, now seen corresponding path program 1 times [2024-11-27 20:05:02,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:02,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577225939] [2024-11-27 20:05:02,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:02,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:02,662 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-27 20:05:02,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:02,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577225939] [2024-11-27 20:05:02,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577225939] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:05:02,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185922145] [2024-11-27 20:05:02,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:02,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:05:02,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:05:02,669 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:05:02,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:05:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:03,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:05:03,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:03,140 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-27 20:05:03,144 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:05:03,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185922145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:03,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:05:03,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 20:05:03,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145670371] [2024-11-27 20:05:03,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:03,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:05:03,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:03,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:05:03,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:05:03,179 INFO L87 Difference]: Start difference. First operand has 111 states, 89 states have (on average 1.3820224719101124) internal successors, (123), 90 states have internal predecessors, (123), 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 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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) [2024-11-27 20:05:03,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:03,205 INFO L93 Difference]: Finished difference Result 215 states and 335 transitions. [2024-11-27 20:05:03,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:05:03,207 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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 152 [2024-11-27 20:05:03,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:03,214 INFO L225 Difference]: With dead ends: 215 [2024-11-27 20:05:03,214 INFO L226 Difference]: Without dead ends: 107 [2024-11-27 20:05:03,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:05:03,219 INFO L435 NwaCegarLoop]: 152 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, 152 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:03,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:05:03,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-27 20:05:03,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-27 20:05:03,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 86 states have (on average 1.3255813953488371) internal successors, (114), 86 states have internal predecessors, (114), 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) [2024-11-27 20:05:03,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 152 transitions. [2024-11-27 20:05:03,260 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 152 transitions. Word has length 152 [2024-11-27 20:05:03,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:03,261 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 152 transitions. [2024-11-27 20:05:03,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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) [2024-11-27 20:05:03,261 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 152 transitions. [2024-11-27 20:05:03,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 20:05:03,265 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:03,265 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] [2024-11-27 20:05:03,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:05:03,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 20:05:03,466 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:03,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:03,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1880561056, now seen corresponding path program 1 times [2024-11-27 20:05:03,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:03,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095673363] [2024-11-27 20:05:03,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:03,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:04,116 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:05:04,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:04,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095673363] [2024-11-27 20:05:04,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095673363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:04,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:04,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:05:04,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764767225] [2024-11-27 20:05:04,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:04,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:05:04,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:04,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:05:04,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:05:04,121 INFO L87 Difference]: Start difference. First operand 107 states and 152 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (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) [2024-11-27 20:05:04,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:04,184 INFO L93 Difference]: Finished difference Result 214 states and 305 transitions. [2024-11-27 20:05:04,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:05:04,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (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 152 [2024-11-27 20:05:04,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:04,187 INFO L225 Difference]: With dead ends: 214 [2024-11-27 20:05:04,187 INFO L226 Difference]: Without dead ends: 110 [2024-11-27 20:05:04,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:05:04,188 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:04,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 436 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:05:04,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-27 20:05:04,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109. [2024-11-27 20:05:04,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 88 states have (on average 1.3181818181818181) internal successors, (116), 88 states have internal predecessors, (116), 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) [2024-11-27 20:05:04,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 154 transitions. [2024-11-27 20:05:04,202 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 154 transitions. Word has length 152 [2024-11-27 20:05:04,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:04,204 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 154 transitions. [2024-11-27 20:05:04,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (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) [2024-11-27 20:05:04,204 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 154 transitions. [2024-11-27 20:05:04,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 20:05:04,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:04,207 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] [2024-11-27 20:05:04,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:05:04,207 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:04,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:04,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1200502686, now seen corresponding path program 1 times [2024-11-27 20:05:04,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:04,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491962164] [2024-11-27 20:05:04,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:04,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:04,577 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:05:04,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:04,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491962164] [2024-11-27 20:05:04,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491962164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:04,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:04,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:05:04,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641036587] [2024-11-27 20:05:04,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:04,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:05:04,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:04,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:05:04,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:05:04,581 INFO L87 Difference]: Start difference. First operand 109 states and 154 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (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) [2024-11-27 20:05:04,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:04,643 INFO L93 Difference]: Finished difference Result 218 states and 309 transitions. [2024-11-27 20:05:04,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:05:04,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (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 152 [2024-11-27 20:05:04,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:04,647 INFO L225 Difference]: With dead ends: 218 [2024-11-27 20:05:04,650 INFO L226 Difference]: Without dead ends: 112 [2024-11-27 20:05:04,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:05:04,652 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:04,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 437 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:05:04,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-27 20:05:04,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2024-11-27 20:05:04,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 90 states have (on average 1.3111111111111111) internal successors, (118), 90 states have internal predecessors, (118), 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) [2024-11-27 20:05:04,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 156 transitions. [2024-11-27 20:05:04,670 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 156 transitions. Word has length 152 [2024-11-27 20:05:04,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:04,671 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 156 transitions. [2024-11-27 20:05:04,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (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) [2024-11-27 20:05:04,671 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 156 transitions. [2024-11-27 20:05:04,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 20:05:04,674 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:04,674 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] [2024-11-27 20:05:04,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:05:04,674 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:04,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:04,675 INFO L85 PathProgramCache]: Analyzing trace with hash 574504676, now seen corresponding path program 1 times [2024-11-27 20:05:04,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:04,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284536071] [2024-11-27 20:05:04,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:04,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:05,049 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:05:05,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:05,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284536071] [2024-11-27 20:05:05,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284536071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:05,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:05,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:05:05,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998843570] [2024-11-27 20:05:05,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:05,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:05:05,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:05,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:05:05,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:05:05,053 INFO L87 Difference]: Start difference. First operand 111 states and 156 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (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) [2024-11-27 20:05:05,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:05,095 INFO L93 Difference]: Finished difference Result 222 states and 313 transitions. [2024-11-27 20:05:05,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:05:05,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (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 152 [2024-11-27 20:05:05,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:05,099 INFO L225 Difference]: With dead ends: 222 [2024-11-27 20:05:05,099 INFO L226 Difference]: Without dead ends: 114 [2024-11-27 20:05:05,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:05:05,101 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:05,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 439 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:05:05,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-27 20:05:05,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2024-11-27 20:05:05,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.3043478260869565) internal successors, (120), 92 states have internal predecessors, (120), 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) [2024-11-27 20:05:05,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 158 transitions. [2024-11-27 20:05:05,120 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 158 transitions. Word has length 152 [2024-11-27 20:05:05,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:05,121 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 158 transitions. [2024-11-27 20:05:05,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (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) [2024-11-27 20:05:05,123 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 158 transitions. [2024-11-27 20:05:05,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 20:05:05,125 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:05,126 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] [2024-11-27 20:05:05,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:05:05,129 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:05,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:05,130 INFO L85 PathProgramCache]: Analyzing trace with hash 576351718, now seen corresponding path program 1 times [2024-11-27 20:05:05,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:05,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122306552] [2024-11-27 20:05:05,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:05,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:08,998 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:05:08,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:08,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122306552] [2024-11-27 20:05:08,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122306552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:08,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:09,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:05:09,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744878739] [2024-11-27 20:05:09,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:09,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:05:09,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:09,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:05:09,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:05:09,002 INFO L87 Difference]: Start difference. First operand 113 states and 158 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 20:05:09,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:09,613 INFO L93 Difference]: Finished difference Result 225 states and 315 transitions. [2024-11-27 20:05:09,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:05:09,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 1 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 152 [2024-11-27 20:05:09,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:09,615 INFO L225 Difference]: With dead ends: 225 [2024-11-27 20:05:09,616 INFO L226 Difference]: Without dead ends: 115 [2024-11-27 20:05:09,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:05:09,617 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 51 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:09,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 357 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:05:09,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-27 20:05:09,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2024-11-27 20:05:09,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.2934782608695652) internal successors, (119), 92 states have internal predecessors, (119), 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) [2024-11-27 20:05:09,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 157 transitions. [2024-11-27 20:05:09,633 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 157 transitions. Word has length 152 [2024-11-27 20:05:09,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:09,633 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 157 transitions. [2024-11-27 20:05:09,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 20:05:09,634 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 157 transitions. [2024-11-27 20:05:09,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-27 20:05:09,638 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:09,638 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] [2024-11-27 20:05:09,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:05:09,639 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:09,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:09,639 INFO L85 PathProgramCache]: Analyzing trace with hash 557822497, now seen corresponding path program 1 times [2024-11-27 20:05:09,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:09,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67625531] [2024-11-27 20:05:09,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:09,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:05:09,950 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:05:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:05:10,146 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 20:05:10,147 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 20:05:10,148 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 20:05:10,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:05:10,152 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-27 20:05:10,206 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:05:10,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:05:10 BoogieIcfgContainer [2024-11-27 20:05:10,209 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:05:10,210 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:05:10,210 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:05:10,210 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:05:10,211 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:05:01" (3/4) ... [2024-11-27 20:05:10,215 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 20:05:10,216 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:05:10,217 INFO L158 Benchmark]: Toolchain (without parser) took 9990.53ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 105.4MB in the beginning and 366.0MB in the end (delta: -260.7MB). Peak memory consumption was 140.0MB. Max. memory is 16.1GB. [2024-11-27 20:05:10,217 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:05:10,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.68ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 87.6MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:05:10,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.54ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 83.9MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:05:10,220 INFO L158 Benchmark]: Boogie Preprocessor took 76.55ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 80.6MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:05:10,220 INFO L158 Benchmark]: RCFGBuilder took 1237.19ms. Allocated memory is still 142.6MB. Free memory was 80.6MB in the beginning and 48.7MB in the end (delta: 31.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-27 20:05:10,222 INFO L158 Benchmark]: TraceAbstraction took 8302.48ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 48.0MB in the beginning and 366.2MB in the end (delta: -318.2MB). Peak memory consumption was 81.2MB. Max. memory is 16.1GB. [2024-11-27 20:05:10,222 INFO L158 Benchmark]: Witness Printer took 5.94ms. Allocated memory is still 545.3MB. Free memory was 366.2MB in the beginning and 366.0MB in the end (delta: 175.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:05:10,223 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.68ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 87.6MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.54ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 83.9MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 76.55ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 80.6MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1237.19ms. Allocated memory is still 142.6MB. Free memory was 80.6MB in the beginning and 48.7MB in the end (delta: 31.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8302.48ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 48.0MB in the beginning and 366.2MB in the end (delta: -318.2MB). Peak memory consumption was 81.2MB. Max. memory is 16.1GB. * Witness Printer took 5.94ms. Allocated memory is still 545.3MB. Free memory was 366.2MB in the beginning and 366.0MB in the end (delta: 175.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 84, overapproximation of someUnaryDOUBLEoperation at line 49, overapproximation of someBinaryDOUBLEComparisonOperation at line 102, overapproximation of someBinaryDOUBLEComparisonOperation at line 100, overapproximation of someBinaryDOUBLEComparisonOperation at line 100, overapproximation of someBinaryDOUBLEComparisonOperation at line 102, overapproximation of someBinaryDOUBLEComparisonOperation at line 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 129, overapproximation of someBinaryDOUBLEComparisonOperation at line 98. Possible FailurePath: [L42] unsigned char isInitial = 0; [L43-L62] struct WrapperStruct00 WrapperStruct00 = { 5, 8, 9.15, 1000000.875, 49.25, -0.8, -10, 58996, 32, 32, 16, 2, 32, 1000000000, -0.5, 2, 0, 0 }; [L63] double last_1_WrapperStruct00_var_1_3 = 9.15; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_3=183/20] [L133] isInitial = 1 [L134] FCALL initially() [L136] CALL updateLastVariables() [L126] EXPR WrapperStruct00.var_1_3 [L126] last_1_WrapperStruct00_var_1_3 = WrapperStruct00.var_1_3 [L136] RET updateLastVariables() [L137] CALL updateVariables() [L94] WrapperStruct00.var_1_2 = __VERIFIER_nondet_ulong() [L95] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L96] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 4294967294) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 4294967294) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L97] WrapperStruct00.var_1_6 = __VERIFIER_nondet_double() [L98] EXPR WrapperStruct00.var_1_6 [L98] EXPR WrapperStruct00.var_1_6 >= 0.0F && WrapperStruct00.var_1_6 <= -1.0e-20F [L98] EXPR WrapperStruct00.var_1_6 [L98] EXPR WrapperStruct00.var_1_6 >= 0.0F && WrapperStruct00.var_1_6 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L98] EXPR (WrapperStruct00.var_1_6 >= 0.0F && WrapperStruct00.var_1_6 <= -1.0e-20F) || (WrapperStruct00.var_1_6 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_6 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L98] CALL assume_abort_if_not((WrapperStruct00.var_1_6 >= 0.0F && WrapperStruct00.var_1_6 <= -1.0e-20F) || (WrapperStruct00.var_1_6 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_6 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L98] RET assume_abort_if_not((WrapperStruct00.var_1_6 >= 0.0F && WrapperStruct00.var_1_6 <= -1.0e-20F) || (WrapperStruct00.var_1_6 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_6 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L99] WrapperStruct00.var_1_7 = __VERIFIER_nondet_double() [L100] EXPR WrapperStruct00.var_1_7 [L100] EXPR WrapperStruct00.var_1_7 >= 0.0F && WrapperStruct00.var_1_7 <= -1.0e-20F [L100] EXPR WrapperStruct00.var_1_7 [L100] EXPR WrapperStruct00.var_1_7 >= 0.0F && WrapperStruct00.var_1_7 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L100] EXPR (WrapperStruct00.var_1_7 >= 0.0F && WrapperStruct00.var_1_7 <= -1.0e-20F) || (WrapperStruct00.var_1_7 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_7 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L100] CALL assume_abort_if_not((WrapperStruct00.var_1_7 >= 0.0F && WrapperStruct00.var_1_7 <= -1.0e-20F) || (WrapperStruct00.var_1_7 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_7 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L100] RET assume_abort_if_not((WrapperStruct00.var_1_7 >= 0.0F && WrapperStruct00.var_1_7 <= -1.0e-20F) || (WrapperStruct00.var_1_7 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_7 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L101] WrapperStruct00.var_1_8 = __VERIFIER_nondet_double() [L102] EXPR WrapperStruct00.var_1_8 [L102] EXPR WrapperStruct00.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F [L102] EXPR WrapperStruct00.var_1_8 [L102] EXPR WrapperStruct00.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L102] EXPR (WrapperStruct00.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L102] CALL assume_abort_if_not((WrapperStruct00.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L102] RET assume_abort_if_not((WrapperStruct00.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L103] WrapperStruct00.var_1_10 = __VERIFIER_nondet_ushort() [L104] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= 32767) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L104] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= 32767) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L105] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 65535) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L105] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 65535) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L106] WrapperStruct00.var_1_11 = __VERIFIER_nondet_ushort() [L107] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_11 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L107] RET assume_abort_if_not(WrapperStruct00.var_1_11 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L108] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_11 <= 32767) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L108] RET assume_abort_if_not(WrapperStruct00.var_1_11 <= 32767) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L109] WrapperStruct00.var_1_12 = __VERIFIER_nondet_char() [L110] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= -1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L110] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= -1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L111] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L111] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L111] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L112] WrapperStruct00.var_1_13 = __VERIFIER_nondet_char() [L113] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L113] CALL assume_abort_if_not(WrapperStruct00.var_1_13 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L113] RET assume_abort_if_not(WrapperStruct00.var_1_13 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L114] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L114] CALL assume_abort_if_not(WrapperStruct00.var_1_13 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L114] RET assume_abort_if_not(WrapperStruct00.var_1_13 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L115] WrapperStruct00.var_1_14 = __VERIFIER_nondet_char() [L116] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L116] CALL assume_abort_if_not(WrapperStruct00.var_1_14 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L116] RET assume_abort_if_not(WrapperStruct00.var_1_14 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L117] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L117] CALL assume_abort_if_not(WrapperStruct00.var_1_14 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L117] RET assume_abort_if_not(WrapperStruct00.var_1_14 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L118] WrapperStruct00.var_1_17 = __VERIFIER_nondet_long() [L119] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L119] CALL assume_abort_if_not(WrapperStruct00.var_1_17 >= 536870911) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L119] RET assume_abort_if_not(WrapperStruct00.var_1_17 >= 536870911) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L120] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L120] CALL assume_abort_if_not(WrapperStruct00.var_1_17 <= 1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L120] RET assume_abort_if_not(WrapperStruct00.var_1_17 <= 1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L121] WrapperStruct00.var_1_21 = __VERIFIER_nondet_uchar() [L122] EXPR WrapperStruct00.var_1_21 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L122] CALL assume_abort_if_not(WrapperStruct00.var_1_21 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L122] RET assume_abort_if_not(WrapperStruct00.var_1_21 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L123] EXPR WrapperStruct00.var_1_21 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L123] CALL assume_abort_if_not(WrapperStruct00.var_1_21 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L123] RET assume_abort_if_not(WrapperStruct00.var_1_21 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L137] RET updateVariables() [L138] CALL step() [L67] EXPR WrapperStruct00.var_1_2 [L67] WrapperStruct00.var_1_1 = WrapperStruct00.var_1_2 [L68] EXPR WrapperStruct00.var_1_8 [L68] WrapperStruct00.var_1_18 = WrapperStruct00.var_1_8 [L69] EXPR WrapperStruct00.var_1_12 [L69] WrapperStruct00.var_1_19 = WrapperStruct00.var_1_12 [L70] EXPR WrapperStruct00.var_1_21 [L70] WrapperStruct00.var_1_20 = WrapperStruct00.var_1_21 [L71] EXPR WrapperStruct00.var_1_19 [L71] signed char stepLocal_1 = WrapperStruct00.var_1_19; [L72] EXPR WrapperStruct00.var_1_10 [L72] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20, stepLocal_1=-1] [L72] COND TRUE (- (WrapperStruct00.var_1_10 - WrapperStruct00.var_1_11)) >= stepLocal_1 [L73] EXPR WrapperStruct00.var_1_12 [L73] EXPR WrapperStruct00.var_1_13 [L73] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L73] EXPR ((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14) [L73] EXPR WrapperStruct00.var_1_13 [L73] EXPR ((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L73] WrapperStruct00.var_1_9 = (WrapperStruct00.var_1_12 - ((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14)))) [L77] WrapperStruct00.var_1_20 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L77] COND TRUE WrapperStruct00.var_1_20 [L78] EXPR WrapperStruct00.var_1_12 [L78] EXPR WrapperStruct00.var_1_14 [L78] WrapperStruct00.var_1_15 = (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_14) [L82] EXPR WrapperStruct00.var_1_15 [L82] signed long int stepLocal_0 = WrapperStruct00.var_1_15; [L83] EXPR WrapperStruct00.var_1_1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20, stepLocal_0=-7] [L83] COND TRUE stepLocal_0 < WrapperStruct00.var_1_1 [L84] WrapperStruct00.var_1_3 = -0.5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L138] RET step() [L139] CALL, EXPR property() [L129] EXPR WrapperStruct00.var_1_1 [L129] EXPR WrapperStruct00.var_1_2 [L129] EXPR (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_2)) && ((WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)))) [L129] EXPR WrapperStruct00.var_1_15 [L129] EXPR WrapperStruct00.var_1_1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L129] EXPR (WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8))) [L129] EXPR WrapperStruct00.var_1_3 [L129] EXPR (WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L129] EXPR (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_2)) && ((WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L129] EXPR ((WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_2)) && ((WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8))))) && (((- (WrapperStruct00.var_1_10 - WrapperStruct00.var_1_11)) >= WrapperStruct00.var_1_19) ? (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - ((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14)))))) : (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_14)))))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L129] EXPR (((WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_2)) && ((WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8))))) && (((- (WrapperStruct00.var_1_10 - WrapperStruct00.var_1_11)) >= WrapperStruct00.var_1_19) ? (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - ((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14)))))) : (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_14))))))) && (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_13 - ((WrapperStruct00.var_1_17 - 4) + ((((WrapperStruct00.var_1_11) < 0 ) ? -(WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11)))))))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L129] EXPR ((((WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_2)) && ((WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8))))) && (((- (WrapperStruct00.var_1_10 - WrapperStruct00.var_1_11)) >= WrapperStruct00.var_1_19) ? (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - ((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14)))))) : (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_14))))))) && (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_13 - ((WrapperStruct00.var_1_17 - 4) + ((((WrapperStruct00.var_1_11) < 0 ) ? -(WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))))))) && (WrapperStruct00.var_1_18 == ((float) WrapperStruct00.var_1_8)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L129] EXPR (((((WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_2)) && ((WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8))))) && (((- (WrapperStruct00.var_1_10 - WrapperStruct00.var_1_11)) >= WrapperStruct00.var_1_19) ? (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - ((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14)))))) : (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_14))))))) && (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_13 - ((WrapperStruct00.var_1_17 - 4) + ((((WrapperStruct00.var_1_11) < 0 ) ? -(WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))))))) && (WrapperStruct00.var_1_18 == ((float) WrapperStruct00.var_1_8))) && (WrapperStruct00.var_1_19 == ((signed char) WrapperStruct00.var_1_12)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L129] EXPR ((((((WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_2)) && ((WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8))))) && (((- (WrapperStruct00.var_1_10 - WrapperStruct00.var_1_11)) >= WrapperStruct00.var_1_19) ? (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - ((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14)))))) : (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_14))))))) && (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_13 - ((WrapperStruct00.var_1_17 - 4) + ((((WrapperStruct00.var_1_11) < 0 ) ? -(WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))))))) && (WrapperStruct00.var_1_18 == ((float) WrapperStruct00.var_1_8))) && (WrapperStruct00.var_1_19 == ((signed char) WrapperStruct00.var_1_12))) && (WrapperStruct00.var_1_20 == ((unsigned char) WrapperStruct00.var_1_21)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L129-L130] return ((((((WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_2)) && ((WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8))))) && (((- (WrapperStruct00.var_1_10 - WrapperStruct00.var_1_11)) >= WrapperStruct00.var_1_19) ? (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - ((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14)))))) : (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_14))))))) && (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_13 - ((WrapperStruct00.var_1_17 - 4) + ((((WrapperStruct00.var_1_11) < 0 ) ? -(WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))))))) && (WrapperStruct00.var_1_18 == ((float) WrapperStruct00.var_1_8))) && (WrapperStruct00.var_1_19 == ((signed char) WrapperStruct00.var_1_12))) && (WrapperStruct00.var_1_20 == ((unsigned char) WrapperStruct00.var_1_21)) ; [L139] RET, EXPR property() [L139] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 111 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.2s, OverallIterations: 6, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 1821 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1110 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 239 IncrementalHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 711 mSDtfsCounter, 239 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 188 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 1066 NumberOfCodeBlocks, 1066 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 906 ConstructedInterpolants, 0 QuantifiedInterpolants, 1016 SizeOfPredicates, 0 NumberOfNonLiveVariables, 588 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 4068/4104 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-27 20:05:10,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b01652b30ec09a692ad6378ed531eb12202ad1b62f1f35df71071640dd6a83a1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:05:12,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:05:13,062 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-27 20:05:13,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:05:13,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:05:13,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:05:13,127 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:05:13,127 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:05:13,128 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:05:13,128 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:05:13,129 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:05:13,129 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:05:13,130 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:05:13,130 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:05:13,130 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:05:13,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:05:13,131 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:05:13,131 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:05:13,131 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:05:13,131 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:05:13,131 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:05:13,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:05:13,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:05:13,131 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 20:05:13,131 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 20:05:13,132 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 20:05:13,132 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:05:13,132 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:05:13,132 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:05:13,132 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:05:13,132 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:05:13,133 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:05:13,133 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:05:13,133 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:05:13,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:05:13,133 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:05:13,133 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:05:13,133 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:05:13,133 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:05:13,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:05:13,133 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:05:13,133 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:05:13,134 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:05:13,134 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:05:13,134 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 20:05:13,134 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 20:05:13,134 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:05:13,134 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:05:13,134 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:05:13,134 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:05:13,134 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_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b01652b30ec09a692ad6378ed531eb12202ad1b62f1f35df71071640dd6a83a1 [2024-11-27 20:05:13,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:05:13,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:05:13,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:05:13,449 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:05:13,449 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:05:13,450 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i [2024-11-27 20:05:16,597 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/data/745090fa1/4184223716f849b1a1fc51ae0c0110ae/FLAG0135a9109 [2024-11-27 20:05:16,863 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:05:16,865 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i [2024-11-27 20:05:16,872 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/data/745090fa1/4184223716f849b1a1fc51ae0c0110ae/FLAG0135a9109 [2024-11-27 20:05:16,887 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/data/745090fa1/4184223716f849b1a1fc51ae0c0110ae [2024-11-27 20:05:16,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:05:16,890 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:05:16,892 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:05:16,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:05:16,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:05:16,897 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:05:16" (1/1) ... [2024-11-27 20:05:16,898 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca8cd3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:16, skipping insertion in model container [2024-11-27 20:05:16,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:05:16" (1/1) ... [2024-11-27 20:05:16,916 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:05:17,058 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_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i[916,929] [2024-11-27 20:05:17,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:05:17,132 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:05:17,144 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_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i[916,929] [2024-11-27 20:05:17,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:05:17,220 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:05:17,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:17 WrapperNode [2024-11-27 20:05:17,221 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:05:17,222 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:05:17,222 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:05:17,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:05:17,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:17" (1/1) ... [2024-11-27 20:05:17,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:17" (1/1) ... [2024-11-27 20:05:17,307 INFO L138 Inliner]: procedures = 40, calls = 173, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 485 [2024-11-27 20:05:17,307 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:05:17,308 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:05:17,308 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:05:17,308 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:05:17,316 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:17" (1/1) ... [2024-11-27 20:05:17,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:17" (1/1) ... [2024-11-27 20:05:17,324 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:17" (1/1) ... [2024-11-27 20:05:17,356 INFO L175 MemorySlicer]: Split 143 memory accesses to 2 slices as follows [2, 141]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 41 writes are split as follows [0, 41]. [2024-11-27 20:05:17,360 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:17" (1/1) ... [2024-11-27 20:05:17,360 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:17" (1/1) ... [2024-11-27 20:05:17,402 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:17" (1/1) ... [2024-11-27 20:05:17,407 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:17" (1/1) ... [2024-11-27 20:05:17,411 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:17" (1/1) ... [2024-11-27 20:05:17,417 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:17" (1/1) ... [2024-11-27 20:05:17,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:17" (1/1) ... [2024-11-27 20:05:17,434 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:05:17,435 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:05:17,438 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:05:17,438 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:05:17,439 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:17" (1/1) ... [2024-11-27 20:05:17,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:05:17,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:05:17,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:05:17,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:05:17,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:05:17,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-27 20:05:17,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-27 20:05:17,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#0 [2024-11-27 20:05:17,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#1 [2024-11-27 20:05:17,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-27 20:05:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-27 20:05:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-27 20:05:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-27 20:05:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 20:05:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-27 20:05:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-27 20:05:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-27 20:05:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-27 20:05:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-27 20:05:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-27 20:05:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-27 20:05:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-27 20:05:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-27 20:05:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-27 20:05:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-27 20:05:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-27 20:05:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-27 20:05:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-27 20:05:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-27 20:05:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:05:17,511 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:05:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-27 20:05:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-27 20:05:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:05:17,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:05:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-27 20:05:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-27 20:05:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-27 20:05:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-27 20:05:17,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-27 20:05:17,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-27 20:05:17,705 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:05:17,707 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:05:20,279 INFO L? ?]: Removed 114 outVars from TransFormulas that were not future-live. [2024-11-27 20:05:20,280 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:05:20,296 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:05:20,298 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:05:20,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:05:20 BoogieIcfgContainer [2024-11-27 20:05:20,298 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:05:20,301 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:05:20,301 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:05:20,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:05:20,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:05:16" (1/3) ... [2024-11-27 20:05:20,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311ef60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:05:20, skipping insertion in model container [2024-11-27 20:05:20,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:17" (2/3) ... [2024-11-27 20:05:20,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311ef60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:05:20, skipping insertion in model container [2024-11-27 20:05:20,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:05:20" (3/3) ... [2024-11-27 20:05:20,309 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-10.i [2024-11-27 20:05:20,320 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:05:20,321 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-10.i that has 2 procedures, 111 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:05:20,370 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:05:20,382 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;@62186e3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:05:20,382 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:05:20,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 89 states have (on average 1.3820224719101124) internal successors, (123), 90 states have internal predecessors, (123), 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) [2024-11-27 20:05:20,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 20:05:20,403 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:20,404 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] [2024-11-27 20:05:20,404 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:20,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:20,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1918999069, now seen corresponding path program 1 times [2024-11-27 20:05:20,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:05:20,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392982098] [2024-11-27 20:05:20,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:20,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:20,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:05:20,421 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:05:20,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-27 20:05:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:20,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:05:20,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:21,063 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-27 20:05:21,066 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:05:21,067 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:05:21,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392982098] [2024-11-27 20:05:21,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1392982098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:21,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:21,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:21,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024257895] [2024-11-27 20:05:21,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:21,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:05:21,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:05:21,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:05:21,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:05:21,104 INFO L87 Difference]: Start difference. First operand has 111 states, 89 states have (on average 1.3820224719101124) internal successors, (123), 90 states have internal predecessors, (123), 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 32.0) internal successors, (64), 2 states have internal predecessors, (64), 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) [2024-11-27 20:05:21,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:21,149 INFO L93 Difference]: Finished difference Result 215 states and 335 transitions. [2024-11-27 20:05:21,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:05:21,151 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 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 152 [2024-11-27 20:05:21,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:21,157 INFO L225 Difference]: With dead ends: 215 [2024-11-27 20:05:21,157 INFO L226 Difference]: Without dead ends: 107 [2024-11-27 20:05:21,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:05:21,162 INFO L435 NwaCegarLoop]: 152 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, 152 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:21,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:05:21,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-27 20:05:21,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-27 20:05:21,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 86 states have (on average 1.3255813953488371) internal successors, (114), 86 states have internal predecessors, (114), 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) [2024-11-27 20:05:21,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 152 transitions. [2024-11-27 20:05:21,221 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 152 transitions. Word has length 152 [2024-11-27 20:05:21,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:21,221 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 152 transitions. [2024-11-27 20:05:21,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 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) [2024-11-27 20:05:21,221 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 152 transitions. [2024-11-27 20:05:21,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 20:05:21,226 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:21,227 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] [2024-11-27 20:05:21,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-27 20:05:21,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:21,430 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:21,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:21,430 INFO L85 PathProgramCache]: Analyzing trace with hash -396215223, now seen corresponding path program 1 times [2024-11-27 20:05:21,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:05:21,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378167494] [2024-11-27 20:05:21,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:21,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:21,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:05:21,435 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:05:21,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-27 20:05:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:21,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:05:21,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:21,961 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-27 20:05:21,961 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:05:21,961 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:05:21,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378167494] [2024-11-27 20:05:21,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378167494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:21,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:21,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:05:21,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506138005] [2024-11-27 20:05:21,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:21,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:05:21,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:05:21,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:05:21,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:05:21,969 INFO L87 Difference]: Start difference. First operand 107 states and 152 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-27 20:05:22,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:22,214 INFO L93 Difference]: Finished difference Result 213 states and 304 transitions. [2024-11-27 20:05:22,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:05:22,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 152 [2024-11-27 20:05:22,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:22,223 INFO L225 Difference]: With dead ends: 213 [2024-11-27 20:05:22,223 INFO L226 Difference]: Without dead ends: 109 [2024-11-27 20:05:22,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:05:22,225 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:22,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 439 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:05:22,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-27 20:05:22,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-27 20:05:22,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 88 states have (on average 1.3181818181818181) internal successors, (116), 88 states have internal predecessors, (116), 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) [2024-11-27 20:05:22,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 154 transitions. [2024-11-27 20:05:22,238 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 154 transitions. Word has length 152 [2024-11-27 20:05:22,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:22,240 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 154 transitions. [2024-11-27 20:05:22,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-27 20:05:22,240 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 154 transitions. [2024-11-27 20:05:22,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 20:05:22,243 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:22,243 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] [2024-11-27 20:05:22,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-27 20:05:22,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:22,443 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:22,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:22,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1795168825, now seen corresponding path program 1 times [2024-11-27 20:05:22,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:05:22,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938283241] [2024-11-27 20:05:22,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:22,445 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:22,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:05:22,447 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:05:22,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-27 20:05:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:22,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:05:22,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:23,045 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:05:23,047 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:05:23,047 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:05:23,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938283241] [2024-11-27 20:05:23,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938283241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:23,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:23,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:05:23,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041974630] [2024-11-27 20:05:23,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:23,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:05:23,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:05:23,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:05:23,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:05:23,050 INFO L87 Difference]: Start difference. First operand 109 states and 154 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (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) [2024-11-27 20:05:23,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:23,425 INFO L93 Difference]: Finished difference Result 222 states and 315 transitions. [2024-11-27 20:05:23,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:05:23,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (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 152 [2024-11-27 20:05:23,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:23,429 INFO L225 Difference]: With dead ends: 222 [2024-11-27 20:05:23,429 INFO L226 Difference]: Without dead ends: 116 [2024-11-27 20:05:23,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:05:23,431 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 1 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:23,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 705 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:05:23,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-27 20:05:23,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 115. [2024-11-27 20:05:23,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 94 states have (on average 1.297872340425532) internal successors, (122), 94 states have internal predecessors, (122), 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) [2024-11-27 20:05:23,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 160 transitions. [2024-11-27 20:05:23,443 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 160 transitions. Word has length 152 [2024-11-27 20:05:23,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:23,444 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 160 transitions. [2024-11-27 20:05:23,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (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) [2024-11-27 20:05:23,445 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 160 transitions. [2024-11-27 20:05:23,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 20:05:23,447 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:23,448 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] [2024-11-27 20:05:23,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:05:23,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:23,652 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:23,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:23,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1115110455, now seen corresponding path program 1 times [2024-11-27 20:05:23,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:05:23,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838772417] [2024-11-27 20:05:23,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:23,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:23,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:05:23,656 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:05:23,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-27 20:05:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:24,071 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:05:24,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:24,169 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:05:24,171 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:05:24,171 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:05:24,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838772417] [2024-11-27 20:05:24,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838772417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:24,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:24,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:05:24,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058222413] [2024-11-27 20:05:24,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:24,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:05:24,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:05:24,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:05:24,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:05:24,175 INFO L87 Difference]: Start difference. First operand 115 states and 160 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2024-11-27 20:05:24,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:24,407 INFO L93 Difference]: Finished difference Result 230 states and 321 transitions. [2024-11-27 20:05:24,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:05:24,408 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 152 [2024-11-27 20:05:24,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:24,410 INFO L225 Difference]: With dead ends: 230 [2024-11-27 20:05:24,411 INFO L226 Difference]: Without dead ends: 118 [2024-11-27 20:05:24,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:05:24,413 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 1 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:24,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 834 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:05:24,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-27 20:05:24,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-11-27 20:05:24,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 96 states have (on average 1.2916666666666667) internal successors, (124), 96 states have internal predecessors, (124), 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) [2024-11-27 20:05:24,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 162 transitions. [2024-11-27 20:05:24,432 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 162 transitions. Word has length 152 [2024-11-27 20:05:24,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:24,433 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 162 transitions. [2024-11-27 20:05:24,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2024-11-27 20:05:24,433 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 162 transitions. [2024-11-27 20:05:24,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 20:05:24,436 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:24,437 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] [2024-11-27 20:05:24,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-27 20:05:24,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:24,638 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:24,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:24,639 INFO L85 PathProgramCache]: Analyzing trace with hash 659896907, now seen corresponding path program 1 times [2024-11-27 20:05:24,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:05:24,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956168988] [2024-11-27 20:05:24,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:24,640 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:24,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:05:24,642 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:05:24,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-27 20:05:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:25,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:05:25,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:25,134 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:05:25,134 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:05:25,134 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:05:25,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956168988] [2024-11-27 20:05:25,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956168988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:25,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:25,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:05:25,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649576557] [2024-11-27 20:05:25,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:25,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:05:25,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:05:25,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:05:25,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:05:25,138 INFO L87 Difference]: Start difference. First operand 117 states and 162 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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) [2024-11-27 20:05:25,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:25,399 INFO L93 Difference]: Finished difference Result 234 states and 325 transitions. [2024-11-27 20:05:25,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:05:25,400 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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 152 [2024-11-27 20:05:25,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:25,401 INFO L225 Difference]: With dead ends: 234 [2024-11-27 20:05:25,402 INFO L226 Difference]: Without dead ends: 120 [2024-11-27 20:05:25,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:05:25,403 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:25,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 965 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:05:25,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-27 20:05:25,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2024-11-27 20:05:25,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 98 states have (on average 1.2857142857142858) internal successors, (126), 98 states have internal predecessors, (126), 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) [2024-11-27 20:05:25,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 164 transitions. [2024-11-27 20:05:25,425 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 164 transitions. Word has length 152 [2024-11-27 20:05:25,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:25,429 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 164 transitions. [2024-11-27 20:05:25,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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) [2024-11-27 20:05:25,429 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 164 transitions. [2024-11-27 20:05:25,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-27 20:05:25,431 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:25,432 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] [2024-11-27 20:05:25,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-27 20:05:25,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:25,633 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:25,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:25,634 INFO L85 PathProgramCache]: Analyzing trace with hash 661743949, now seen corresponding path program 1 times [2024-11-27 20:05:25,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:05:25,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093011083] [2024-11-27 20:05:25,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:25,634 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:25,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:05:25,636 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:05:25,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-27 20:05:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:26,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:05:26,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:26,218 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:26,218 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 173 treesize of output 65 [2024-11-27 20:05:26,271 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-27 20:05:26,271 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:05:26,272 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:05:26,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093011083] [2024-11-27 20:05:26,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093011083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:26,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:26,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:05:26,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429245013] [2024-11-27 20:05:26,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:26,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:05:26,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:05:26,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:05:26,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:05:26,274 INFO L87 Difference]: Start difference. First operand 119 states and 164 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-27 20:05:28,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:28,443 INFO L93 Difference]: Finished difference Result 235 states and 325 transitions. [2024-11-27 20:05:28,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:05:28,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 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 152 [2024-11-27 20:05:28,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:28,445 INFO L225 Difference]: With dead ends: 235 [2024-11-27 20:05:28,445 INFO L226 Difference]: Without dead ends: 119 [2024-11-27 20:05:28,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:05:28,446 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 139 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:28,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 426 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 20:05:28,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-27 20:05:28,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2024-11-27 20:05:28,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 96 states have (on average 1.28125) internal successors, (123), 96 states have internal predecessors, (123), 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) [2024-11-27 20:05:28,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 161 transitions. [2024-11-27 20:05:28,455 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 161 transitions. Word has length 152 [2024-11-27 20:05:28,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:28,455 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 161 transitions. [2024-11-27 20:05:28,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-27 20:05:28,456 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 161 transitions. [2024-11-27 20:05:28,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-27 20:05:28,463 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:28,463 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] [2024-11-27 20:05:28,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-27 20:05:28,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:28,663 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:28,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:28,664 INFO L85 PathProgramCache]: Analyzing trace with hash 188413461, now seen corresponding path program 1 times [2024-11-27 20:05:28,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:05:28,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759887897] [2024-11-27 20:05:28,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:28,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:28,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:05:28,667 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:05:28,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-27 20:05:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:29,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:05:29,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:29,252 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:29,252 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 172 treesize of output 64 [2024-11-27 20:05:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 192 proven. 8 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-11-27 20:05:29,357 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:05:29,759 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:29,760 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 110 treesize of output 1 [2024-11-27 20:05:29,772 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 6 proven. 48 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-27 20:05:29,772 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:05:29,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759887897] [2024-11-27 20:05:29,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759887897] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:05:29,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:05:29,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2024-11-27 20:05:29,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012657859] [2024-11-27 20:05:29,773 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:05:29,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:05:29,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:05:29,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:05:29,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:05:29,775 INFO L87 Difference]: Start difference. First operand 117 states and 161 transitions. Second operand has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (37), 3 states have call predecessors, (37), 4 states have call successors, (37) [2024-11-27 20:05:32,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:05:35,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:35,300 INFO L93 Difference]: Finished difference Result 244 states and 334 transitions. [2024-11-27 20:05:35,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:05:35,301 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (37), 3 states have call predecessors, (37), 4 states have call successors, (37) Word has length 154 [2024-11-27 20:05:35,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:35,302 INFO L225 Difference]: With dead ends: 244 [2024-11-27 20:05:35,302 INFO L226 Difference]: Without dead ends: 119 [2024-11-27 20:05:35,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:05:35,304 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 136 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:35,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 668 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-27 20:05:35,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-27 20:05:35,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2024-11-27 20:05:35,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 96 states have (on average 1.2604166666666667) internal successors, (121), 96 states have internal predecessors, (121), 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) [2024-11-27 20:05:35,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 159 transitions. [2024-11-27 20:05:35,312 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 159 transitions. Word has length 154 [2024-11-27 20:05:35,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:35,312 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 159 transitions. [2024-11-27 20:05:35,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (37), 3 states have call predecessors, (37), 4 states have call successors, (37) [2024-11-27 20:05:35,313 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 159 transitions. [2024-11-27 20:05:35,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-27 20:05:35,315 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:35,315 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] [2024-11-27 20:05:35,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-27 20:05:35,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:35,516 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:35,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:35,516 INFO L85 PathProgramCache]: Analyzing trace with hash 118765587, now seen corresponding path program 1 times [2024-11-27 20:05:35,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:05:35,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631216650] [2024-11-27 20:05:35,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:35,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:35,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:05:35,520 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:05:35,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-27 20:05:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:35,898 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:05:35,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:36,053 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:36,053 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 173 treesize of output 65 [2024-11-27 20:05:36,088 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2024-11-27 20:05:36,088 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:05:36,088 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:05:36,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631216650] [2024-11-27 20:05:36,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631216650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:36,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:36,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:05:36,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459560039] [2024-11-27 20:05:36,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:36,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:05:36,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:05:36,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:05:36,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:05:36,091 INFO L87 Difference]: Start difference. First operand 117 states and 159 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 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) [2024-11-27 20:05:37,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:05:39,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:39,520 INFO L93 Difference]: Finished difference Result 232 states and 316 transitions. [2024-11-27 20:05:39,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:05:39,521 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 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 154 [2024-11-27 20:05:39,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:39,522 INFO L225 Difference]: With dead ends: 232 [2024-11-27 20:05:39,522 INFO L226 Difference]: Without dead ends: 118 [2024-11-27 20:05:39,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:05:39,523 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 127 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:39,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 414 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-27 20:05:39,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-27 20:05:39,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-11-27 20:05:39,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 96 states have (on average 1.25) internal successors, (120), 96 states have internal predecessors, (120), 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) [2024-11-27 20:05:39,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 158 transitions. [2024-11-27 20:05:39,534 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 158 transitions. Word has length 154 [2024-11-27 20:05:39,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:39,535 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 158 transitions. [2024-11-27 20:05:39,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 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) [2024-11-27 20:05:39,536 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 158 transitions. [2024-11-27 20:05:39,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-27 20:05:39,537 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:39,538 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] [2024-11-27 20:05:39,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-27 20:05:39,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:39,738 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:39,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:39,739 INFO L85 PathProgramCache]: Analyzing trace with hash -63120243, now seen corresponding path program 1 times [2024-11-27 20:05:39,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:05:39,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580064443] [2024-11-27 20:05:39,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:39,739 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:39,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:05:39,741 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:05:39,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-27 20:05:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:40,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:05:40,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:40,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 20:05:40,268 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:40,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 37 [2024-11-27 20:05:40,359 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:40,359 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 50 treesize of output 43 [2024-11-27 20:05:40,403 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:40,403 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 50 treesize of output 43 [2024-11-27 20:05:40,448 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:40,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 43 [2024-11-27 20:05:40,491 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:05:40,492 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:05:40,492 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:05:40,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580064443] [2024-11-27 20:05:40,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580064443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:40,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:40,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:05:40,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292155323] [2024-11-27 20:05:40,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:40,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:05:40,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:05:40,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:05:40,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:05:40,494 INFO L87 Difference]: Start difference. First operand 117 states and 158 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 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) [2024-11-27 20:05:42,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:42,581 INFO L93 Difference]: Finished difference Result 231 states and 313 transitions. [2024-11-27 20:05:42,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:05:42,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 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 [2024-11-27 20:05:42,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:42,584 INFO L225 Difference]: With dead ends: 231 [2024-11-27 20:05:42,584 INFO L226 Difference]: Without dead ends: 117 [2024-11-27 20:05:42,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:05:42,585 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 51 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:42,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 269 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 20:05:42,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-27 20:05:42,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-11-27 20:05:42,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 94 states have internal predecessors, (117), 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) [2024-11-27 20:05:42,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 155 transitions. [2024-11-27 20:05:42,593 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 155 transitions. Word has length 156 [2024-11-27 20:05:42,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:42,593 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 155 transitions. [2024-11-27 20:05:42,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 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) [2024-11-27 20:05:42,593 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 155 transitions. [2024-11-27 20:05:42,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-27 20:05:42,595 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:42,595 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] [2024-11-27 20:05:42,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-27 20:05:42,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:42,796 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:42,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:42,796 INFO L85 PathProgramCache]: Analyzing trace with hash 205591560, now seen corresponding path program 1 times [2024-11-27 20:05:42,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:05:42,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567795092] [2024-11-27 20:05:42,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:42,797 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:42,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:05:42,798 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:05:42,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-27 20:05:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:43,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:05:43,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:43,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:05:43,343 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 20 treesize of output 21 [2024-11-27 20:05:43,470 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:43,470 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 139 treesize of output 55 [2024-11-27 20:05:43,524 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:05:43,525 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:05:43,525 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:05:43,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567795092] [2024-11-27 20:05:43,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567795092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:43,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:43,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:05:43,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323371300] [2024-11-27 20:05:43,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:43,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:05:43,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:05:43,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:05:43,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:05:43,527 INFO L87 Difference]: Start difference. First operand 115 states and 155 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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) [2024-11-27 20:05:48,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:48,387 INFO L93 Difference]: Finished difference Result 342 states and 463 transitions. [2024-11-27 20:05:48,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:05:48,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 158 [2024-11-27 20:05:48,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:48,394 INFO L225 Difference]: With dead ends: 342 [2024-11-27 20:05:48,394 INFO L226 Difference]: Without dead ends: 230 [2024-11-27 20:05:48,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:05:48,395 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 126 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:48,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 832 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 369 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2024-11-27 20:05:48,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-27 20:05:48,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 121. [2024-11-27 20:05:48,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 100 states have (on average 1.24) internal successors, (124), 100 states have internal predecessors, (124), 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) [2024-11-27 20:05:48,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 162 transitions. [2024-11-27 20:05:48,412 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 162 transitions. Word has length 158 [2024-11-27 20:05:48,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:48,412 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 162 transitions. [2024-11-27 20:05:48,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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) [2024-11-27 20:05:48,413 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 162 transitions. [2024-11-27 20:05:48,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-27 20:05:48,414 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:48,414 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] [2024-11-27 20:05:48,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-27 20:05:48,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:48,615 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:48,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:48,615 INFO L85 PathProgramCache]: Analyzing trace with hash -893311432, now seen corresponding path program 1 times [2024-11-27 20:05:48,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:05:48,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1431249626] [2024-11-27 20:05:48,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:48,616 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:48,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:05:48,618 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:05:48,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-27 20:05:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:49,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 20:05:49,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:49,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 20:05:49,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-27 20:05:49,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-27 20:05:49,541 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:49,541 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 64 treesize of output 55 [2024-11-27 20:05:49,681 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:49,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 61 [2024-11-27 20:05:49,744 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:49,744 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 78 treesize of output 77 [2024-11-27 20:05:50,225 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:50,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 118 treesize of output 91 [2024-11-27 20:05:50,406 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:50,406 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 104 treesize of output 36 [2024-11-27 20:05:51,855 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 304 proven. 15 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-27 20:05:51,856 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:05:52,685 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:05:52,685 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:05:52,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1431249626] [2024-11-27 20:05:52,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1431249626] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:05:52,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:05:52,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2024-11-27 20:05:52,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190688590] [2024-11-27 20:05:52,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:52,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:05:52,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:05:52,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:05:52,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:05:52,687 INFO L87 Difference]: Start difference. First operand 121 states and 162 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) [2024-11-27 20:05:56,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:56,303 INFO L93 Difference]: Finished difference Result 336 states and 451 transitions. [2024-11-27 20:05:56,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:05:56,304 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 [2024-11-27 20:05:56,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:56,307 INFO L225 Difference]: With dead ends: 336 [2024-11-27 20:05:56,308 INFO L226 Difference]: Without dead ends: 218 [2024-11-27 20:05:56,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 303 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:05:56,310 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 114 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:56,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 416 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-27 20:05:56,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-27 20:05:56,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 121. [2024-11-27 20:05:56,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 100 states have (on average 1.23) internal successors, (123), 100 states have internal predecessors, (123), 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) [2024-11-27 20:05:56,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 161 transitions. [2024-11-27 20:05:56,331 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 161 transitions. Word has length 159 [2024-11-27 20:05:56,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:56,331 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 161 transitions. [2024-11-27 20:05:56,332 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) [2024-11-27 20:05:56,332 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 161 transitions. [2024-11-27 20:05:56,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 20:05:56,334 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:56,334 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] [2024-11-27 20:05:56,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-27 20:05:56,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:56,535 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:56,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:56,535 INFO L85 PathProgramCache]: Analyzing trace with hash -906193438, now seen corresponding path program 1 times [2024-11-27 20:05:56,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:05:56,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500096738] [2024-11-27 20:05:56,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:56,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:05:56,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:05:56,538 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:05:56,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-27 20:05:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:57,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 20:05:57,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:57,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 20:05:57,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-27 20:05:57,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-27 20:05:57,460 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:57,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 31 [2024-11-27 20:05:57,539 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:57,539 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 44 treesize of output 34 [2024-11-27 20:05:57,582 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:57,583 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 57 treesize of output 59 [2024-11-27 20:05:57,812 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:57,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 91 treesize of output 75 [2024-11-27 20:05:58,037 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:05:58,038 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 107 treesize of output 39 [2024-11-27 20:05:59,849 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 304 proven. 15 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-27 20:05:59,849 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:00,853 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:06:00,853 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:06:00,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500096738] [2024-11-27 20:06:00,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500096738] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:00,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:06:00,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2024-11-27 20:06:00,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625033264] [2024-11-27 20:06:00,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:00,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:06:00,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:06:00,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:06:00,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:06:00,855 INFO L87 Difference]: Start difference. First operand 121 states and 161 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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) [2024-11-27 20:06:03,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:06:05,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:05,542 INFO L93 Difference]: Finished difference Result 329 states and 440 transitions. [2024-11-27 20:06:05,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:06:05,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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 [2024-11-27 20:06:05,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:05,549 INFO L225 Difference]: With dead ends: 329 [2024-11-27 20:06:05,550 INFO L226 Difference]: Without dead ends: 211 [2024-11-27 20:06:05,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:06:05,550 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 108 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:05,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 541 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-27 20:06:05,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-27 20:06:05,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 121. [2024-11-27 20:06:05,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 100 states have (on average 1.22) internal successors, (122), 100 states have internal predecessors, (122), 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) [2024-11-27 20:06:05,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 160 transitions. [2024-11-27 20:06:05,565 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 160 transitions. Word has length 160 [2024-11-27 20:06:05,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:05,565 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 160 transitions. [2024-11-27 20:06:05,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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) [2024-11-27 20:06:05,566 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 160 transitions. [2024-11-27 20:06:05,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-27 20:06:05,567 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:05,567 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] [2024-11-27 20:06:05,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-27 20:06:05,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:06:05,768 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:05,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:05,768 INFO L85 PathProgramCache]: Analyzing trace with hash -390013934, now seen corresponding path program 1 times [2024-11-27 20:06:05,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:06:05,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750205564] [2024-11-27 20:06:05,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:05,769 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:06:05,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:06:05,770 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:06:05,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-27 20:06:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:06,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-27 20:06:06,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:06,716 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 [2024-11-27 20:06:07,035 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:07,035 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 127 treesize of output 69 [2024-11-27 20:06:07,334 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:07,334 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 142 treesize of output 72 [2024-11-27 20:06:07,588 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:07,589 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 142 treesize of output 72 [2024-11-27 20:06:07,838 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:07,838 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 142 treesize of output 72 [2024-11-27 20:06:08,099 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:08,099 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 142 treesize of output 72 [2024-11-27 20:06:08,360 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:08,361 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 142 treesize of output 72 [2024-11-27 20:06:08,604 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:08,605 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 137 treesize of output 82 [2024-11-27 20:06:09,017 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:09,017 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 185 treesize of output 116 [2024-11-27 20:06:09,280 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:09,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 186 treesize of output 122 [2024-11-27 20:06:09,471 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:09,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 186 treesize of output 122 [2024-11-27 20:06:09,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:09,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 244 treesize of output 163 [2024-11-27 20:06:10,095 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:10,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 447 treesize of output 153 [2024-11-27 20:06:10,302 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 152 proven. 240 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-27 20:06:10,303 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:10,764 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:06:10,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [750205564] [2024-11-27 20:06:10,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [750205564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:10,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2052128749] [2024-11-27 20:06:10,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:10,765 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 20:06:10,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 20:06:10,772 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 20:06:10,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-27 20:06:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:14,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-27 20:06:14,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:14,603 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 [2024-11-27 20:06:16,159 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:16,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 71 [2024-11-27 20:06:16,778 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:16,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 42 [2024-11-27 20:06:17,526 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:17,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 53 [2024-11-27 20:06:18,368 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:18,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 56 treesize of output 56 [2024-11-27 20:06:18,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:18,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 56 treesize of output 56 [2024-11-27 20:06:19,574 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:19,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 56 treesize of output 56 [2024-11-27 20:06:20,151 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:20,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 53 treesize of output 64 [2024-11-27 20:06:21,083 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:21,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 45 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 89 treesize of output 85 [2024-11-27 20:06:21,622 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:21,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 84 treesize of output 93 [2024-11-27 20:06:21,751 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:21,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 84 treesize of output 93 [2024-11-27 20:06:22,076 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:22,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 45 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 130 [2024-11-27 20:06:22,818 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:22,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 245 treesize of output 109 [2024-11-27 20:06:22,855 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 536 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-27 20:06:22,855 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:06:22,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2052128749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:22,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:06:22,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [14] total 25 [2024-11-27 20:06:22,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440862282] [2024-11-27 20:06:22,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:22,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 20:06:22,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:06:22,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 20:06:22,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=725, Unknown=0, NotChecked=0, Total=870 [2024-11-27 20:06:22,857 INFO L87 Difference]: Start difference. First operand 121 states and 160 transitions. Second operand has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 16 states have internal predecessors, (84), 6 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) [2024-11-27 20:06:25,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:06:28,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:06:29,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:06:31,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:06:48,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:48,901 INFO L93 Difference]: Finished difference Result 446 states and 575 transitions. [2024-11-27 20:06:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 20:06:48,902 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 16 states have internal predecessors, (84), 6 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) Word has length 161 [2024-11-27 20:06:48,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:48,905 INFO L225 Difference]: With dead ends: 446 [2024-11-27 20:06:48,905 INFO L226 Difference]: Without dead ends: 328 [2024-11-27 20:06:48,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 321 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=254, Invalid=1006, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 20:06:48,906 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 351 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:48,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 1001 Invalid, 1716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 24.7s Time] [2024-11-27 20:06:48,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-27 20:06:48,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 267. [2024-11-27 20:06:48,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 217 states have (on average 1.1981566820276497) internal successors, (260), 219 states have internal predecessors, (260), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-27 20:06:48,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 344 transitions. [2024-11-27 20:06:48,959 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 344 transitions. Word has length 161 [2024-11-27 20:06:48,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:48,960 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 344 transitions. [2024-11-27 20:06:48,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 16 states have internal predecessors, (84), 6 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) [2024-11-27 20:06:48,960 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 344 transitions. [2024-11-27 20:06:48,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-27 20:06:48,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:48,962 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] [2024-11-27 20:06:48,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-27 20:06:49,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2024-11-27 20:06:49,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 20:06:49,363 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:49,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:49,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1854544464, now seen corresponding path program 1 times [2024-11-27 20:06:49,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:06:49,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412857913] [2024-11-27 20:06:49,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:49,364 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:06:49,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:06:49,366 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:06:49,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-27 20:06:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:49,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:06:49,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:49,880 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2024-11-27 20:06:49,880 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:06:49,881 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:06:49,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412857913] [2024-11-27 20:06:49,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412857913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:49,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:49,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:06:49,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003769170] [2024-11-27 20:06:49,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:49,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:06:49,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:06:49,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:06:49,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:06:49,883 INFO L87 Difference]: Start difference. First operand 267 states and 344 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-11-27 20:06:50,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:50,197 INFO L93 Difference]: Finished difference Result 512 states and 660 transitions. [2024-11-27 20:06:50,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:06:50,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 161 [2024-11-27 20:06:50,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:50,209 INFO L225 Difference]: With dead ends: 512 [2024-11-27 20:06:50,209 INFO L226 Difference]: Without dead ends: 267 [2024-11-27 20:06:50,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:06:50,210 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:50,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 427 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:06:50,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-11-27 20:06:50,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2024-11-27 20:06:50,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 217 states have (on average 1.1935483870967742) internal successors, (259), 219 states have internal predecessors, (259), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-27 20:06:50,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 343 transitions. [2024-11-27 20:06:50,252 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 343 transitions. Word has length 161 [2024-11-27 20:06:50,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:50,253 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 343 transitions. [2024-11-27 20:06:50,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-11-27 20:06:50,253 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 343 transitions. [2024-11-27 20:06:50,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 20:06:50,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:50,255 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] [2024-11-27 20:06:50,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-27 20:06:50,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:06:50,455 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:50,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:50,456 INFO L85 PathProgramCache]: Analyzing trace with hash -222727841, now seen corresponding path program 1 times [2024-11-27 20:06:50,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:06:50,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [857930231] [2024-11-27 20:06:50,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:50,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:06:50,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:06:50,459 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:06:50,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-27 20:06:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:50,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-27 20:06:51,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:51,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 20:06:51,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-27 20:06:51,303 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 37 treesize of output 39 [2024-11-27 20:06:51,836 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:51,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 57 [2024-11-27 20:06:52,216 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:52,216 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 57 treesize of output 65 [2024-11-27 20:06:52,736 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:52,736 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 72 treesize of output 68 [2024-11-27 20:06:53,088 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:53,088 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 67 treesize of output 78 [2024-11-27 20:06:53,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 55 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 108 [2024-11-27 20:06:54,375 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:54,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 139 treesize of output 129 [2024-11-27 20:06:54,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:54,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 139 treesize of output 129 [2024-11-27 20:06:54,787 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:54,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 145 treesize of output 139 [2024-11-27 20:06:58,926 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:06:58,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 160 treesize of output 66 [2024-11-27 20:06:59,121 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 514 proven. 87 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-27 20:06:59,121 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:59,626 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:06:59,626 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:06:59,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [857930231] [2024-11-27 20:06:59,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [857930231] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:59,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:06:59,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [22] total 25 [2024-11-27 20:06:59,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738039196] [2024-11-27 20:06:59,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:59,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:06:59,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:06:59,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:06:59,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=484, Unknown=1, NotChecked=0, Total=600 [2024-11-27 20:06:59,628 INFO L87 Difference]: Start difference. First operand 267 states and 343 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) [2024-11-27 20:07:02,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:02,525 INFO L93 Difference]: Finished difference Result 673 states and 856 transitions. [2024-11-27 20:07:02,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:07:02,526 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 [2024-11-27 20:07:02,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:02,529 INFO L225 Difference]: With dead ends: 673 [2024-11-27 20:07:02,529 INFO L226 Difference]: Without dead ends: 428 [2024-11-27 20:07:02,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 298 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=120, Invalid=529, Unknown=1, NotChecked=0, Total=650 [2024-11-27 20:07:02,530 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 75 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:02,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 347 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 20:07:02,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-27 20:07:02,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 396. [2024-11-27 20:07:02,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 339 states have (on average 1.2064896755162242) internal successors, (409), 342 states have internal predecessors, (409), 47 states have call successors, (47), 9 states have call predecessors, (47), 9 states have return successors, (47), 44 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-27 20:07:02,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 503 transitions. [2024-11-27 20:07:02,579 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 503 transitions. Word has length 162 [2024-11-27 20:07:02,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:02,580 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 503 transitions. [2024-11-27 20:07:02,580 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) [2024-11-27 20:07:02,580 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 503 transitions. [2024-11-27 20:07:02,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 20:07:02,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:02,582 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] [2024-11-27 20:07:02,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-27 20:07:02,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:07:02,782 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:02,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:02,783 INFO L85 PathProgramCache]: Analyzing trace with hash -94564074, now seen corresponding path program 1 times [2024-11-27 20:07:02,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:07:02,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715121008] [2024-11-27 20:07:02,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:02,784 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:07:02,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:07:02,786 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:07:02,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-27 20:07:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:03,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-27 20:07:03,356 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:03,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 20:07:03,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-27 20:07:03,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-27 20:07:03,682 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:03,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-27 20:07:03,817 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:03,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-27 20:07:03,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:03,934 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 76 treesize of output 75 [2024-11-27 20:07:04,166 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:04,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 92 treesize of output 97 [2024-11-27 20:07:04,336 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:04,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 107 treesize of output 100 [2024-11-27 20:07:04,452 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:04,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 113 treesize of output 110 [2024-11-27 20:07:08,365 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:08,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 119 treesize of output 43 [2024-11-27 20:07:08,561 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 432 proven. 27 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-27 20:07:08,561 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:08,983 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:07:08,983 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:07:08,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715121008] [2024-11-27 20:07:08,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715121008] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:08,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:08,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [16] total 21 [2024-11-27 20:07:08,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468840350] [2024-11-27 20:07:08,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:08,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:07:08,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:07:08,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:07:08,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=355, Unknown=1, NotChecked=0, Total=420 [2024-11-27 20:07:08,985 INFO L87 Difference]: Start difference. First operand 396 states and 503 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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) [2024-11-27 20:07:10,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:07:11,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:07:13,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:07:17,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:17,027 INFO L93 Difference]: Finished difference Result 984 states and 1241 transitions. [2024-11-27 20:07:17,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:07:17,029 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 [2024-11-27 20:07:17,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:17,032 INFO L225 Difference]: With dead ends: 984 [2024-11-27 20:07:17,032 INFO L226 Difference]: Without dead ends: 591 [2024-11-27 20:07:17,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=87, Invalid=562, Unknown=1, NotChecked=0, Total=650 [2024-11-27 20:07:17,034 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 87 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:17,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 980 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-11-27 20:07:17,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2024-11-27 20:07:17,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 566. [2024-11-27 20:07:17,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 493 states have (on average 1.2028397565922921) internal successors, (593), 498 states have internal predecessors, (593), 60 states have call successors, (60), 12 states have call predecessors, (60), 12 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 20:07:17,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 713 transitions. [2024-11-27 20:07:17,117 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 713 transitions. Word has length 162 [2024-11-27 20:07:17,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:17,118 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 713 transitions. [2024-11-27 20:07:17,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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) [2024-11-27 20:07:17,118 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 713 transitions. [2024-11-27 20:07:17,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 20:07:17,119 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:17,119 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] [2024-11-27 20:07:17,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-27 20:07:17,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:07:17,320 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:17,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:17,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1374427752, now seen corresponding path program 1 times [2024-11-27 20:07:17,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:07:17,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291163355] [2024-11-27 20:07:17,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:17,321 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:07:17,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:07:17,327 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:07:17,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-27 20:07:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:17,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-27 20:07:17,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:17,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 20:07:17,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 20:07:17,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-27 20:07:18,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-27 20:07:18,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-11-27 20:07:18,383 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:18,383 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 75 treesize of output 74 [2024-11-27 20:07:18,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:18,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 106 treesize of output 90 [2024-11-27 20:07:18,960 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:18,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 106 treesize of output 90 [2024-11-27 20:07:19,061 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:19,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 112 treesize of output 100 [2024-11-27 20:07:22,996 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:22,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 107 treesize of output 43 [2024-11-27 20:07:23,088 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 341 proven. 15 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-11-27 20:07:23,088 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:23,464 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:07:23,465 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:07:23,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291163355] [2024-11-27 20:07:23,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291163355] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:23,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:23,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-11-27 20:07:23,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16725706] [2024-11-27 20:07:23,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:23,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:07:23,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:07:23,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:07:23,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=181, Unknown=1, NotChecked=0, Total=240 [2024-11-27 20:07:23,466 INFO L87 Difference]: Start difference. First operand 566 states and 713 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) [2024-11-27 20:07:25,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:07:28,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:28,626 INFO L93 Difference]: Finished difference Result 1144 states and 1437 transitions. [2024-11-27 20:07:28,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:07:28,627 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 [2024-11-27 20:07:28,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:28,643 INFO L225 Difference]: With dead ends: 1144 [2024-11-27 20:07:28,643 INFO L226 Difference]: Without dead ends: 581 [2024-11-27 20:07:28,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 306 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=63, Invalid=208, Unknown=1, NotChecked=0, Total=272 [2024-11-27 20:07:28,645 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 142 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:28,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 399 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-27 20:07:28,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-11-27 20:07:28,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 556. [2024-11-27 20:07:28,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 483 states have (on average 1.1987577639751552) internal successors, (579), 488 states have internal predecessors, (579), 60 states have call successors, (60), 12 states have call predecessors, (60), 12 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 20:07:28,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 699 transitions. [2024-11-27 20:07:28,720 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 699 transitions. Word has length 162 [2024-11-27 20:07:28,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:28,721 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 699 transitions. [2024-11-27 20:07:28,721 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) [2024-11-27 20:07:28,721 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 699 transitions. [2024-11-27 20:07:28,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 20:07:28,724 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:28,724 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] [2024-11-27 20:07:28,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-27 20:07:28,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:07:28,925 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:28,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:28,925 INFO L85 PathProgramCache]: Analyzing trace with hash -604037164, now seen corresponding path program 1 times [2024-11-27 20:07:28,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:07:28,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937675074] [2024-11-27 20:07:28,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:28,926 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:07:28,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:07:28,927 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:07:28,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-27 20:07:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:29,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-27 20:07:29,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:29,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 20:07:29,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-27 20:07:29,566 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 25 treesize of output 24 [2024-11-27 20:07:29,853 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:29,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 32 [2024-11-27 20:07:30,044 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:30,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 32 [2024-11-27 20:07:30,268 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:30,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 86 treesize of output 88 [2024-11-27 20:07:30,734 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:30,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 118 treesize of output 105 [2024-11-27 20:07:30,853 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:30,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 118 treesize of output 105 [2024-11-27 20:07:31,057 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:31,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 124 treesize of output 115 [2024-11-27 20:07:35,595 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:35,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 113 treesize of output 43 [2024-11-27 20:07:35,704 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 405 proven. 15 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 20:07:35,704 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:36,049 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:07:36,050 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:07:36,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937675074] [2024-11-27 20:07:36,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937675074] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:36,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:36,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-11-27 20:07:36,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48134256] [2024-11-27 20:07:36,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:36,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:07:36,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:07:36,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:07:36,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=178, Unknown=1, NotChecked=0, Total=240 [2024-11-27 20:07:36,051 INFO L87 Difference]: Start difference. First operand 556 states and 699 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) [2024-11-27 20:07:38,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:38,830 INFO L93 Difference]: Finished difference Result 1146 states and 1436 transitions. [2024-11-27 20:07:38,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:07:38,831 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 [2024-11-27 20:07:38,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:38,834 INFO L225 Difference]: With dead ends: 1146 [2024-11-27 20:07:38,834 INFO L226 Difference]: Without dead ends: 593 [2024-11-27 20:07:38,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 305 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=66, Invalid=205, Unknown=1, NotChecked=0, Total=272 [2024-11-27 20:07:38,836 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 82 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:38,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 413 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-27 20:07:38,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-27 20:07:38,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 461. [2024-11-27 20:07:38,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 399 states have (on average 1.1929824561403508) internal successors, (476), 402 states have internal predecessors, (476), 51 states have call successors, (51), 10 states have call predecessors, (51), 10 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-27 20:07:38,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 578 transitions. [2024-11-27 20:07:38,895 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 578 transitions. Word has length 162 [2024-11-27 20:07:38,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:38,896 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 578 transitions. [2024-11-27 20:07:38,896 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) [2024-11-27 20:07:38,896 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 578 transitions. [2024-11-27 20:07:38,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 20:07:38,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:38,897 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] [2024-11-27 20:07:38,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-27 20:07:39,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:07:39,098 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:39,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:39,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1883900842, now seen corresponding path program 1 times [2024-11-27 20:07:39,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:07:39,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859745469] [2024-11-27 20:07:39,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:39,100 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:07:39,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:07:39,102 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:07:39,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-27 20:07:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:39,717 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-27 20:07:39,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:39,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 20:07:39,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-27 20:07:39,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-27 20:07:39,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:39,973 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 64 treesize of output 55 [2024-11-27 20:07:40,154 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:40,154 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 69 treesize of output 74 [2024-11-27 20:07:40,273 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:40,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 84 treesize of output 77 [2024-11-27 20:07:40,332 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:40,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 90 treesize of output 87 [2024-11-27 20:07:44,664 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:44,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 96 treesize of output 36 [2024-11-27 20:07:44,845 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 304 proven. 15 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-27 20:07:44,845 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:45,256 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:07:45,256 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:07:45,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859745469] [2024-11-27 20:07:45,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [859745469] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:45,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:45,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [15] total 20 [2024-11-27 20:07:45,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476783932] [2024-11-27 20:07:45,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:45,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:07:45,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:07:45,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:07:45,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=323, Unknown=1, NotChecked=0, Total=380 [2024-11-27 20:07:45,258 INFO L87 Difference]: Start difference. First operand 461 states and 578 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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) [2024-11-27 20:07:48,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:07:53,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:53,440 INFO L93 Difference]: Finished difference Result 1073 states and 1341 transitions. [2024-11-27 20:07:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:07:53,441 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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 [2024-11-27 20:07:53,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:53,444 INFO L225 Difference]: With dead ends: 1073 [2024-11-27 20:07:53,444 INFO L226 Difference]: Without dead ends: 615 [2024-11-27 20:07:53,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=79, Invalid=520, Unknown=1, NotChecked=0, Total=600 [2024-11-27 20:07:53,445 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 92 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:53,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1279 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-11-27 20:07:53,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2024-11-27 20:07:53,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 611. [2024-11-27 20:07:53,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 515 states have (on average 1.1786407766990292) internal successors, (607), 521 states have internal predecessors, (607), 77 states have call successors, (77), 18 states have call predecessors, (77), 18 states have return successors, (77), 71 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-27 20:07:53,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 761 transitions. [2024-11-27 20:07:53,559 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 761 transitions. Word has length 162 [2024-11-27 20:07:53,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:53,560 INFO L471 AbstractCegarLoop]: Abstraction has 611 states and 761 transitions. [2024-11-27 20:07:53,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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) [2024-11-27 20:07:53,561 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 761 transitions. [2024-11-27 20:07:53,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 20:07:53,562 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:53,562 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] [2024-11-27 20:07:53,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-27 20:07:53,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:07:53,763 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:53,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:53,763 INFO L85 PathProgramCache]: Analyzing trace with hash 62361526, now seen corresponding path program 1 times [2024-11-27 20:07:53,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:07:53,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [568934576] [2024-11-27 20:07:53,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:53,764 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:07:53,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:07:53,765 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:07:53,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-27 20:07:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:54,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-27 20:07:54,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:54,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 20:07:54,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-27 20:07:54,732 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 37 treesize of output 39 [2024-11-27 20:07:55,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2024-11-27 20:07:56,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 71 [2024-11-27 20:07:57,408 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:57,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 84 treesize of output 74 [2024-11-27 20:07:57,922 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:57,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 84 treesize of output 74 [2024-11-27 20:07:58,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 55 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 121 [2024-11-27 20:07:59,946 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:07:59,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 174 treesize of output 158 [2024-11-27 20:08:00,561 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:00,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 179 treesize of output 163 [2024-11-27 20:08:01,111 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:01,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 190 treesize of output 163 [2024-11-27 20:08:02,887 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:02,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 191 treesize of output 79 [2024-11-27 20:08:04,003 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 490 proven. 102 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-27 20:08:04,003 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:05,124 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:08:05,124 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:08:05,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [568934576] [2024-11-27 20:08:05,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [568934576] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:05,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:08:05,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [33] total 39 [2024-11-27 20:08:05,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960206966] [2024-11-27 20:08:05,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:05,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:08:05,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:08:05,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:08:05,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1280, Unknown=0, NotChecked=0, Total=1482 [2024-11-27 20:08:05,126 INFO L87 Difference]: Start difference. First operand 611 states and 761 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 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) [2024-11-27 20:08:06,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:08:08,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:08:09,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:08:14,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:14,703 INFO L93 Difference]: Finished difference Result 1414 states and 1762 transitions. [2024-11-27 20:08:14,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:08:14,704 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 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 [2024-11-27 20:08:14,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:14,708 INFO L225 Difference]: With dead ends: 1414 [2024-11-27 20:08:14,708 INFO L226 Difference]: Without dead ends: 806 [2024-11-27 20:08:14,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 283 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=230, Invalid=1750, Unknown=0, NotChecked=0, Total=1980 [2024-11-27 20:08:14,713 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 91 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:14,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1237 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2024-11-27 20:08:14,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-11-27 20:08:14,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 781. [2024-11-27 20:08:14,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 670 states have (on average 1.1880597014925374) internal successors, (796), 678 states have internal predecessors, (796), 90 states have call successors, (90), 20 states have call predecessors, (90), 20 states have return successors, (90), 82 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-27 20:08:14,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 976 transitions. [2024-11-27 20:08:14,832 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 976 transitions. Word has length 162 [2024-11-27 20:08:14,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:14,833 INFO L471 AbstractCegarLoop]: Abstraction has 781 states and 976 transitions. [2024-11-27 20:08:14,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 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) [2024-11-27 20:08:14,833 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 976 transitions. [2024-11-27 20:08:14,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 20:08:14,835 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:14,835 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] [2024-11-27 20:08:14,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-11-27 20:08:15,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:08:15,036 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:08:15,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:15,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1217502152, now seen corresponding path program 1 times [2024-11-27 20:08:15,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:08:15,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339310352] [2024-11-27 20:08:15,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:15,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:08:15,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:08:15,039 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:08:15,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-27 20:08:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:15,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-27 20:08:15,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:15,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 20:08:15,900 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 42 treesize of output 20 [2024-11-27 20:08:16,230 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:16,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 34 [2024-11-27 20:08:16,404 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:16,404 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 48 treesize of output 44 [2024-11-27 20:08:16,733 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:16,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 63 [2024-11-27 20:08:17,168 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:17,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 84 treesize of output 68 [2024-11-27 20:08:17,223 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:17,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 84 treesize of output 68 [2024-11-27 20:08:17,280 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:17,281 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 95 treesize of output 68 [2024-11-27 20:08:17,481 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:17,481 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 85 treesize of output 33 [2024-11-27 20:08:20,535 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 392 proven. 45 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2024-11-27 20:08:20,535 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:21,389 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:08:21,389 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:08:21,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339310352] [2024-11-27 20:08:21,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [339310352] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:21,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:08:21,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 22 [2024-11-27 20:08:21,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029017941] [2024-11-27 20:08:21,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:21,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:08:21,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:08:21,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:08:21,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:08:21,391 INFO L87 Difference]: Start difference. First operand 781 states and 976 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) [2024-11-27 20:08:24,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:24,293 INFO L93 Difference]: Finished difference Result 1646 states and 2050 transitions. [2024-11-27 20:08:24,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:08:24,293 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 [2024-11-27 20:08:24,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:24,296 INFO L225 Difference]: With dead ends: 1646 [2024-11-27 20:08:24,297 INFO L226 Difference]: Without dead ends: 868 [2024-11-27 20:08:24,298 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:08:24,299 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 91 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:24,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 406 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-27 20:08:24,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2024-11-27 20:08:24,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 864. [2024-11-27 20:08:24,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 727 states have (on average 1.1774415405777165) internal successors, (856), 737 states have internal predecessors, (856), 108 states have call successors, (108), 28 states have call predecessors, (108), 28 states have return successors, (108), 98 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-27 20:08:24,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1072 transitions. [2024-11-27 20:08:24,436 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1072 transitions. Word has length 162 [2024-11-27 20:08:24,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:24,437 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1072 transitions. [2024-11-27 20:08:24,437 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) [2024-11-27 20:08:24,437 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1072 transitions. [2024-11-27 20:08:24,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 20:08:24,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:24,439 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] [2024-11-27 20:08:24,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2024-11-27 20:08:24,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:08:24,640 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:08:24,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:24,640 INFO L85 PathProgramCache]: Analyzing trace with hash 190525293, now seen corresponding path program 1 times [2024-11-27 20:08:24,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:08:24,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023426471] [2024-11-27 20:08:24,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:24,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:08:24,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:08:24,643 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:08:24,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-27 20:08:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:25,249 INFO L256 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-27 20:08:25,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:25,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-27 20:08:25,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-27 20:08:25,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 43 [2024-11-27 20:08:26,484 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:26,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-27 20:08:26,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:26,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-27 20:08:27,350 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:27,350 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 62 treesize of output 46 [2024-11-27 20:08:27,848 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:27,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 56 [2024-11-27 20:08:28,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 81 [2024-11-27 20:08:29,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:29,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 137 treesize of output 100 [2024-11-27 20:08:29,491 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:29,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 137 treesize of output 100 [2024-11-27 20:08:29,824 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:29,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 148 treesize of output 100 [2024-11-27 20:08:30,828 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 463 proven. 87 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-27 20:08:30,828 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:31,350 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:08:31,351 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:08:31,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023426471] [2024-11-27 20:08:31,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023426471] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:31,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:08:31,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [20] total 23 [2024-11-27 20:08:31,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192534650] [2024-11-27 20:08:31,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:31,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:08:31,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:08:31,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:08:31,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:08:31,353 INFO L87 Difference]: Start difference. First operand 864 states and 1072 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) [2024-11-27 20:08:34,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:08:38,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:38,236 INFO L93 Difference]: Finished difference Result 1683 states and 2079 transitions. [2024-11-27 20:08:38,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:08:38,240 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 [2024-11-27 20:08:38,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:38,243 INFO L225 Difference]: With dead ends: 1683 [2024-11-27 20:08:38,243 INFO L226 Difference]: Without dead ends: 870 [2024-11-27 20:08:38,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 296 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2024-11-27 20:08:38,246 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 73 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:38,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 491 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-11-27 20:08:38,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-11-27 20:08:38,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 844. [2024-11-27 20:08:38,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 710 states have (on average 1.167605633802817) internal successors, (829), 720 states have internal predecessors, (829), 104 states have call successors, (104), 29 states have call predecessors, (104), 29 states have return successors, (104), 94 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-27 20:08:38,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1037 transitions. [2024-11-27 20:08:38,383 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1037 transitions. Word has length 162 [2024-11-27 20:08:38,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:38,383 INFO L471 AbstractCegarLoop]: Abstraction has 844 states and 1037 transitions. [2024-11-27 20:08:38,384 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) [2024-11-27 20:08:38,384 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1037 transitions. [2024-11-27 20:08:38,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 20:08:38,385 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:38,385 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] [2024-11-27 20:08:38,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-11-27 20:08:38,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:08:38,586 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:08:38,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:38,586 INFO L85 PathProgramCache]: Analyzing trace with hash -447111564, now seen corresponding path program 1 times [2024-11-27 20:08:38,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:08:38,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825825643] [2024-11-27 20:08:38,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:38,587 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:08:38,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:08:38,591 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:08:38,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-27 20:08:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:39,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 20:08:39,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:39,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 20:08:39,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-27 20:08:39,661 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:39,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 29 [2024-11-27 20:08:39,775 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:39,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2024-11-27 20:08:40,040 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:40,041 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 87 treesize of output 89 [2024-11-27 20:08:40,519 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:40,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 103 treesize of output 102 [2024-11-27 20:08:40,607 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:40,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 103 treesize of output 102 [2024-11-27 20:08:40,701 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:40,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 104 treesize of output 122 [2024-11-27 20:08:45,269 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:45,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 124 treesize of output 48 [2024-11-27 20:08:47,488 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 403 proven. 33 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-27 20:08:47,488 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:48,359 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:08:48,359 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:08:48,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825825643] [2024-11-27 20:08:48,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825825643] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:48,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:08:48,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 19 [2024-11-27 20:08:48,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331303913] [2024-11-27 20:08:48,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:48,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:08:48,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:08:48,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:08:48,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=275, Unknown=1, NotChecked=0, Total=342 [2024-11-27 20:08:48,361 INFO L87 Difference]: Start difference. First operand 844 states and 1037 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) [2024-11-27 20:08:51,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:08:54,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:54,346 INFO L93 Difference]: Finished difference Result 1690 states and 2071 transitions. [2024-11-27 20:08:54,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:08:54,347 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 [2024-11-27 20:08:54,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:54,350 INFO L225 Difference]: With dead ends: 1690 [2024-11-27 20:08:54,350 INFO L226 Difference]: Without dead ends: 885 [2024-11-27 20:08:54,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=71, Invalid=308, Unknown=1, NotChecked=0, Total=380 [2024-11-27 20:08:54,352 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 85 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:54,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 529 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-27 20:08:54,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2024-11-27 20:08:54,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 852. [2024-11-27 20:08:54,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 715 states have (on average 1.1636363636363636) internal successors, (832), 725 states have internal predecessors, (832), 106 states have call successors, (106), 30 states have call predecessors, (106), 30 states have return successors, (106), 96 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-27 20:08:54,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1044 transitions. [2024-11-27 20:08:54,506 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1044 transitions. Word has length 162 [2024-11-27 20:08:54,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:54,507 INFO L471 AbstractCegarLoop]: Abstraction has 852 states and 1044 transitions. [2024-11-27 20:08:54,507 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) [2024-11-27 20:08:54,507 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1044 transitions. [2024-11-27 20:08:54,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 20:08:54,509 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:54,509 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] [2024-11-27 20:08:54,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-11-27 20:08:54,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:08:54,710 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:08:54,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:54,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1726975242, now seen corresponding path program 1 times [2024-11-27 20:08:54,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:08:54,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530908321] [2024-11-27 20:08:54,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:54,712 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:08:54,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:08:54,714 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:08:54,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-27 20:08:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:55,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-27 20:08:55,381 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:55,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 20:08:55,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-27 20:08:55,686 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 38 [2024-11-27 20:08:56,305 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:56,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-27 20:08:56,655 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:56,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-27 20:08:57,024 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:57,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 97 treesize of output 93 [2024-11-27 20:08:57,660 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:57,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 124 treesize of output 120 [2024-11-27 20:08:57,965 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:57,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 139 treesize of output 123 [2024-11-27 20:08:58,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:08:58,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 145 treesize of output 133 [2024-11-27 20:09:03,266 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:03,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 145 treesize of output 57 [2024-11-27 20:09:03,645 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 448 proven. 39 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-27 20:09:03,646 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:04,404 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:09:04,405 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:09:04,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530908321] [2024-11-27 20:09:04,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530908321] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:04,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:09:04,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [22] total 28 [2024-11-27 20:09:04,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960501628] [2024-11-27 20:09:04,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:04,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:09:04,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:09:04,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:09:04,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=643, Unknown=1, NotChecked=0, Total=756 [2024-11-27 20:09:04,406 INFO L87 Difference]: Start difference. First operand 852 states and 1044 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 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) [2024-11-27 20:09:05,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:09:07,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:09:09,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:09:12,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:09:17,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:17,020 INFO L93 Difference]: Finished difference Result 1691 states and 2067 transitions. [2024-11-27 20:09:17,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:09:17,021 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 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 [2024-11-27 20:09:17,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:17,025 INFO L225 Difference]: With dead ends: 1691 [2024-11-27 20:09:17,026 INFO L226 Difference]: Without dead ends: 878 [2024-11-27 20:09:17,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 293 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=140, Invalid=981, Unknown=1, NotChecked=0, Total=1122 [2024-11-27 20:09:17,028 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 84 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:17,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 1335 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2024-11-27 20:09:17,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-11-27 20:09:17,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 731. [2024-11-27 20:09:17,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 612 states have (on average 1.1601307189542485) internal successors, (710), 620 states have internal predecessors, (710), 91 states have call successors, (91), 27 states have call predecessors, (91), 27 states have return successors, (91), 83 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-27 20:09:17,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 892 transitions. [2024-11-27 20:09:17,145 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 892 transitions. Word has length 162 [2024-11-27 20:09:17,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:17,146 INFO L471 AbstractCegarLoop]: Abstraction has 731 states and 892 transitions. [2024-11-27 20:09:17,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 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) [2024-11-27 20:09:17,146 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 892 transitions. [2024-11-27 20:09:17,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-27 20:09:17,148 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:17,148 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] [2024-11-27 20:09:17,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-11-27 20:09:17,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:09:17,348 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:09:17,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:17,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1872811788, now seen corresponding path program 1 times [2024-11-27 20:09:17,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:09:17,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897390168] [2024-11-27 20:09:17,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:17,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:09:17,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:09:17,351 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:09:17,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-27 20:09:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:18,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-27 20:09:18,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:18,366 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 [2024-11-27 20:09:18,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:18,799 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 125 treesize of output 67 [2024-11-27 20:09:19,088 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:19,088 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 140 treesize of output 70 [2024-11-27 20:09:19,305 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:19,305 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 135 treesize of output 80 [2024-11-27 20:09:19,698 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:19,698 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 150 treesize of output 83 [2024-11-27 20:09:19,998 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:19,998 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 150 treesize of output 83 [2024-11-27 20:09:20,300 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:20,300 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 150 treesize of output 83 [2024-11-27 20:09:20,615 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:20,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 93 [2024-11-27 20:09:21,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:21,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 123 [2024-11-27 20:09:21,407 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:21,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 185 treesize of output 130 [2024-11-27 20:09:21,509 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:21,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 185 treesize of output 130 [2024-11-27 20:09:21,655 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:21,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 243 treesize of output 171 [2024-11-27 20:09:22,127 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:22,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 451 treesize of output 153 [2024-11-27 20:09:22,366 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 238 proven. 282 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-27 20:09:22,367 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:22,855 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:09:22,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897390168] [2024-11-27 20:09:22,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897390168] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:22,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [65636178] [2024-11-27 20:09:22,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:22,855 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 20:09:22,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 20:09:22,857 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 20:09:22,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2024-11-27 20:09:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:26,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-27 20:09:26,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:26,952 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 [2024-11-27 20:09:32,411 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:32,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 69 [2024-11-27 20:09:33,101 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:33,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 86 [2024-11-27 20:09:33,840 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:33,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 116 treesize of output 89 [2024-11-27 20:09:34,307 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:34,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 116 treesize of output 89 [2024-11-27 20:09:34,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:34,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 113 treesize of output 97 [2024-11-27 20:09:35,795 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:35,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 56 treesize of output 56 [2024-11-27 20:09:36,326 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:36,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 53 treesize of output 64 [2024-11-27 20:09:37,257 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:37,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 66 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 89 treesize of output 106 [2024-11-27 20:09:37,878 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:37,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 101 treesize of output 115 [2024-11-27 20:09:38,296 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:38,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 101 treesize of output 115 [2024-11-27 20:09:38,660 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:38,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 78 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 147 treesize of output 152 [2024-11-27 20:09:39,417 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:09:39,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 295 treesize of output 135 [2024-11-27 20:09:39,458 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 526 proven. 42 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-27 20:09:39,458 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:44,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [65636178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:44,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:09:44,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20] total 33 [2024-11-27 20:09:44,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598434414] [2024-11-27 20:09:44,015 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:09:44,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-27 20:09:44,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:09:44,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-27 20:09:44,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=1184, Unknown=1, NotChecked=0, Total=1406 [2024-11-27 20:09:44,016 INFO L87 Difference]: Start difference. First operand 731 states and 892 transitions. Second operand has 34 states, 32 states have (on average 4.78125) internal successors, (153), 29 states have internal predecessors, (153), 11 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 11 states have call predecessors, (38), 11 states have call successors, (38) [2024-11-27 20:09:45,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:09:47,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:09:48,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:09:51,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:09:54,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:10:26,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:26,692 INFO L93 Difference]: Finished difference Result 1890 states and 2287 transitions. [2024-11-27 20:10:26,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-27 20:10:26,693 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 4.78125) internal successors, (153), 29 states have internal predecessors, (153), 11 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 11 states have call predecessors, (38), 11 states have call successors, (38) Word has length 163 [2024-11-27 20:10:26,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:26,697 INFO L225 Difference]: With dead ends: 1890 [2024-11-27 20:10:26,697 INFO L226 Difference]: Without dead ends: 1198 [2024-11-27 20:10:26,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 346 SyntacticMatches, 4 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 849 ImplicationChecksByTransitivity, 21.0s TimeCoverageRelationStatistics Valid=754, Invalid=3151, Unknown=1, NotChecked=0, Total=3906 [2024-11-27 20:10:26,700 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 529 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 2589 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 2700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 2589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:26,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1144 Invalid, 2700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 2589 Invalid, 0 Unknown, 0 Unchecked, 34.5s Time] [2024-11-27 20:10:26,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2024-11-27 20:10:26,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 807. [2024-11-27 20:10:26,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 659 states have (on average 1.1487101669195752) internal successors, (757), 669 states have internal predecessors, (757), 111 states have call successors, (111), 36 states have call predecessors, (111), 36 states have return successors, (111), 101 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-27 20:10:26,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 979 transitions. [2024-11-27 20:10:26,844 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 979 transitions. Word has length 163 [2024-11-27 20:10:26,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:26,844 INFO L471 AbstractCegarLoop]: Abstraction has 807 states and 979 transitions. [2024-11-27 20:10:26,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 4.78125) internal successors, (153), 29 states have internal predecessors, (153), 11 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 11 states have call predecessors, (38), 11 states have call successors, (38) [2024-11-27 20:10:26,845 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 979 transitions. [2024-11-27 20:10:26,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-27 20:10:26,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:26,847 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] [2024-11-27 20:10:26,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-11-27 20:10:27,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2024-11-27 20:10:27,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 20:10:27,247 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:10:27,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:27,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1934108402, now seen corresponding path program 1 times [2024-11-27 20:10:27,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:10:27,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854380534] [2024-11-27 20:10:27,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:27,248 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:10:27,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:10:27,251 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:10:27,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-11-27 20:10:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:27,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:10:27,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:27,942 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-27 20:10:27,942 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:10:27,942 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:10:27,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854380534] [2024-11-27 20:10:27,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854380534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:27,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:27,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:10:27,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406776048] [2024-11-27 20:10:27,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:27,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:10:27,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:10:27,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:10:27,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:10:27,945 INFO L87 Difference]: Start difference. First operand 807 states and 979 transitions. Second operand has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 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) [2024-11-27 20:10:28,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:28,745 INFO L93 Difference]: Finished difference Result 1287 states and 1545 transitions. [2024-11-27 20:10:28,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:10:28,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 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 163 [2024-11-27 20:10:28,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:28,759 INFO L225 Difference]: With dead ends: 1287 [2024-11-27 20:10:28,759 INFO L226 Difference]: Without dead ends: 495 [2024-11-27 20:10:28,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:10:28,761 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 1 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:28,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 570 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:10:28,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-27 20:10:28,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 434. [2024-11-27 20:10:28,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 345 states have (on average 1.1333333333333333) internal successors, (391), 349 states have internal predecessors, (391), 63 states have call successors, (63), 25 states have call predecessors, (63), 25 states have return successors, (63), 59 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-27 20:10:28,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 517 transitions. [2024-11-27 20:10:28,899 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 517 transitions. Word has length 163 [2024-11-27 20:10:28,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:28,899 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 517 transitions. [2024-11-27 20:10:28,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 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) [2024-11-27 20:10:28,900 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 517 transitions. [2024-11-27 20:10:28,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 20:10:28,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:28,901 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] [2024-11-27 20:10:28,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-11-27 20:10:29,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:10:29,102 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:10:29,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:29,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1681472725, now seen corresponding path program 1 times [2024-11-27 20:10:29,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:10:29,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601494947] [2024-11-27 20:10:29,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:29,103 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:10:29,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:10:29,106 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:10:29,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-27 20:10:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:29,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 20:10:29,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:29,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 20:10:30,128 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:30,128 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 77 treesize of output 67 [2024-11-27 20:10:30,299 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:30,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 89 treesize of output 76 [2024-11-27 20:10:30,369 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:30,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 89 treesize of output 76 [2024-11-27 20:10:30,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:30,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 90 treesize of output 96 [2024-11-27 20:10:35,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:35,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 135 treesize of output 53 [2024-11-27 20:10:35,776 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-27 20:10:35,776 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:10:35,776 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:10:35,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601494947] [2024-11-27 20:10:35,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601494947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:35,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:35,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-27 20:10:35,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232692250] [2024-11-27 20:10:35,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:35,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 20:10:35,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:10:35,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 20:10:35,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=171, Unknown=1, NotChecked=0, Total=210 [2024-11-27 20:10:35,778 INFO L87 Difference]: Start difference. First operand 434 states and 517 transitions. Second operand has 15 states, 13 states have (on average 6.0) internal successors, (78), 14 states have internal predecessors, (78), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 20:10:38,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:10:43,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:10:47,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:10:51,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:10:55,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:10:59,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:11:04,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:11:08,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:11:12,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:11:16,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:11:20,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:11:24,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:11:28,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:11:32,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:11:36,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:11:40,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:11:44,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:11:48,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:11:48,070 INFO L93 Difference]: Finished difference Result 611 states and 717 transitions. [2024-11-27 20:11:48,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 20:11:48,070 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.0) internal successors, (78), 14 states have internal predecessors, (78), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 164 [2024-11-27 20:11:48,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:11:48,073 INFO L225 Difference]: With dead ends: 611 [2024-11-27 20:11:48,073 INFO L226 Difference]: Without dead ends: 609 [2024-11-27 20:11:48,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=95, Invalid=456, Unknown=1, NotChecked=0, Total=552 [2024-11-27 20:11:48,074 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 168 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 70 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:11:48,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 718 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1124 Invalid, 16 Unknown, 0 Unchecked, 71.7s Time] [2024-11-27 20:11:48,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2024-11-27 20:11:48,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 560. [2024-11-27 20:11:48,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 433 states have (on average 1.115473441108545) internal successors, (483), 439 states have internal predecessors, (483), 89 states have call successors, (89), 37 states have call predecessors, (89), 37 states have return successors, (89), 83 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-27 20:11:48,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 661 transitions. [2024-11-27 20:11:48,198 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 661 transitions. Word has length 164 [2024-11-27 20:11:48,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:11:48,198 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 661 transitions. [2024-11-27 20:11:48,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.0) internal successors, (78), 14 states have internal predecessors, (78), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 20:11:48,199 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 661 transitions. [2024-11-27 20:11:48,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 20:11:48,200 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:11:48,200 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] [2024-11-27 20:11:48,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-11-27 20:11:48,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:11:48,400 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:11:48,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:11:48,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1679625683, now seen corresponding path program 1 times [2024-11-27 20:11:48,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:11:48,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803303070] [2024-11-27 20:11:48,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:11:48,401 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:11:48,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:11:48,403 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:11:48,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-11-27 20:11:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:11:49,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-27 20:11:49,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:11:49,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 20:11:49,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-27 20:11:49,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:49,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-27 20:11:49,656 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:49,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 41 [2024-11-27 20:11:49,842 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:49,843 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 51 treesize of output 41 [2024-11-27 20:11:50,048 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:50,048 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 84 treesize of output 68 [2024-11-27 20:11:50,300 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:50,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 85 treesize of output 87 [2024-11-27 20:11:50,468 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:50,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 100 treesize of output 90 [2024-11-27 20:11:50,550 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:50,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 101 treesize of output 110 [2024-11-27 20:11:55,614 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:55,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 146 treesize of output 58 [2024-11-27 20:11:55,695 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 440 proven. 27 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2024-11-27 20:11:55,696 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:11:55,999 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-27 20:11:55,999 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:11:55,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803303070] [2024-11-27 20:11:55,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803303070] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:11:55,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:11:55,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 15 [2024-11-27 20:11:56,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303433704] [2024-11-27 20:11:56,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:11:56,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:11:56,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:11:56,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:11:56,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=159, Unknown=1, NotChecked=0, Total=210 [2024-11-27 20:11:56,001 INFO L87 Difference]: Start difference. First operand 560 states and 661 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2024-11-27 20:11:59,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:12:01,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:01,502 INFO L93 Difference]: Finished difference Result 1004 states and 1187 transitions. [2024-11-27 20:12:01,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:12:01,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 164 [2024-11-27 20:12:01,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:01,506 INFO L225 Difference]: With dead ends: 1004 [2024-11-27 20:12:01,506 INFO L226 Difference]: Without dead ends: 560 [2024-11-27 20:12:01,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=58, Invalid=213, Unknown=1, NotChecked=0, Total=272 [2024-11-27 20:12:01,508 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 76 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:01,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 455 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-27 20:12:01,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-27 20:12:01,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2024-11-27 20:12:01,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 433 states have (on average 1.1085450346420322) internal successors, (480), 439 states have internal predecessors, (480), 89 states have call successors, (89), 37 states have call predecessors, (89), 37 states have return successors, (89), 83 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-27 20:12:01,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 658 transitions. [2024-11-27 20:12:01,685 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 658 transitions. Word has length 164 [2024-11-27 20:12:01,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:01,686 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 658 transitions. [2024-11-27 20:12:01,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2024-11-27 20:12:01,686 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 658 transitions. [2024-11-27 20:12:01,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 20:12:01,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:01,687 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] [2024-11-27 20:12:01,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-11-27 20:12:01,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:12:01,888 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:01,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:01,889 INFO L85 PathProgramCache]: Analyzing trace with hash 95381679, now seen corresponding path program 1 times [2024-11-27 20:12:01,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:12:01,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131993165] [2024-11-27 20:12:01,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:01,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:12:01,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:12:01,892 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:12:01,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-11-27 20:12:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:02,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-27 20:12:02,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:12:02,919 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 20 treesize of output 21 [2024-11-27 20:12:03,717 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:03,717 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 147 treesize of output 77 [2024-11-27 20:12:04,490 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:04,490 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 162 treesize of output 80 [2024-11-27 20:12:05,093 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:05,093 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 157 treesize of output 90 [2024-11-27 20:12:05,765 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:05,765 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 137 treesize of output 109 [2024-11-27 20:12:06,497 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:06,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 66 [2024-11-27 20:12:07,077 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:07,078 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 70 treesize of output 66 [2024-11-27 20:12:07,671 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:07,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 76 [2024-11-27 20:12:08,576 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:08,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 188 treesize of output 136 [2024-11-27 20:12:12,107 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:12,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 155 treesize of output 133 [2024-11-27 20:12:23,609 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:23,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 140 treesize of output 136 [2024-11-27 20:12:24,801 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:24,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 151 treesize of output 136 [2024-11-27 20:12:34,288 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:34,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 282 treesize of output 110 [2024-11-27 20:12:35,366 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 568 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-27 20:12:35,366 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:12:35,366 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:12:35,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131993165] [2024-11-27 20:12:35,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [131993165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:35,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:35,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-27 20:12:35,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012645072] [2024-11-27 20:12:35,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:35,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 20:12:35,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:12:35,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 20:12:35,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=151, Unknown=2, NotChecked=0, Total=210 [2024-11-27 20:12:35,368 INFO L87 Difference]: Start difference. First operand 560 states and 658 transitions. Second operand has 15 states, 15 states have (on average 5.8) internal successors, (87), 14 states have internal predecessors, (87), 6 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) [2024-11-27 20:12:37,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:12:39,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:12:40,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:12:42,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:12:43,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:12:52,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:13:06,806 WARN L539 Checker$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] [2024-11-27 20:13:09,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:13:14,366 WARN L539 Checker$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] [2024-11-27 20:13:19,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:13:25,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:13:29,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:13:34,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:13:39,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:13:41,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:14:00,951 WARN L286 SmtUtils]: Spent 7.51s on a formula simplification. DAG size of input: 88 DAG size of output: 86 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:14:03,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:14:03,337 INFO L93 Difference]: Finished difference Result 1365 states and 1596 transitions. [2024-11-27 20:14:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:14:03,338 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.8) internal successors, (87), 14 states have internal predecessors, (87), 6 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) Word has length 164 [2024-11-27 20:14:03,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:14:03,340 INFO L225 Difference]: With dead ends: 1365 [2024-11-27 20:14:03,340 INFO L226 Difference]: Without dead ends: 921 [2024-11-27 20:14:03,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 150 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 36.4s TimeCoverageRelationStatistics Valid=84, Invalid=220, Unknown=2, NotChecked=0, Total=306 [2024-11-27 20:14:03,341 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 334 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 78 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:14:03,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 711 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1153 Invalid, 7 Unknown, 0 Unchecked, 64.8s Time] [2024-11-27 20:14:03,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2024-11-27 20:14:03,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 607. [2024-11-27 20:14:03,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 503 states have (on average 1.1272365805168987) internal successors, (567), 506 states have internal predecessors, (567), 71 states have call successors, (71), 32 states have call predecessors, (71), 32 states have return successors, (71), 68 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-27 20:14:03,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 709 transitions. [2024-11-27 20:14:03,532 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 709 transitions. Word has length 164 [2024-11-27 20:14:03,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:14:03,532 INFO L471 AbstractCegarLoop]: Abstraction has 607 states and 709 transitions. [2024-11-27 20:14:03,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.8) internal successors, (87), 14 states have internal predecessors, (87), 6 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) [2024-11-27 20:14:03,533 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 709 transitions. [2024-11-27 20:14:03,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 20:14:03,534 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:14:03,534 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] [2024-11-27 20:14:03,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-11-27 20:14:03,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:14:03,735 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:14:03,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:03,735 INFO L85 PathProgramCache]: Analyzing trace with hash 775440049, now seen corresponding path program 1 times [2024-11-27 20:14:03,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:14:03,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [679144627] [2024-11-27 20:14:03,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:14:03,736 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:14:03,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:14:03,738 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:14:03,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-11-27 20:14:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:14:04,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-27 20:14:04,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:14:04,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 20:14:04,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-27 20:14:04,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-27 20:14:04,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-27 20:14:05,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-27 20:14:05,769 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:14:05,769 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 71 treesize of output 43 [2024-11-27 20:14:06,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:14:06,039 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 53 treesize of output 46 [2024-11-27 20:14:06,167 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:14:06,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 66 treesize of output 80 [2024-11-27 20:14:06,487 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:14:06,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 87 treesize of output 93 [2024-11-27 20:14:12,427 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-27 20:14:12,427 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:14:12,427 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:14:12,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [679144627] [2024-11-27 20:14:12,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [679144627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:14:12,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:14:12,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 20:14:12,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364417861] [2024-11-27 20:14:12,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:14:12,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:14:12,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:14:12,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:14:12,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=62, Unknown=1, NotChecked=0, Total=90 [2024-11-27 20:14:12,429 INFO L87 Difference]: Start difference. First operand 607 states and 709 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 20:14:14,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:14:25,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:14:29,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:14:33,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:14:39,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:14:39,089 INFO L93 Difference]: Finished difference Result 1384 states and 1616 transitions. [2024-11-27 20:14:39,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:14:39,090 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 164 [2024-11-27 20:14:39,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:14:39,093 INFO L225 Difference]: With dead ends: 1384 [2024-11-27 20:14:39,093 INFO L226 Difference]: Without dead ends: 848 [2024-11-27 20:14:39,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=51, Invalid=104, Unknown=1, NotChecked=0, Total=156 [2024-11-27 20:14:39,095 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 271 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 58 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:14:39,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 376 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 583 Invalid, 3 Unknown, 0 Unchecked, 26.0s Time] [2024-11-27 20:14:39,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-11-27 20:14:39,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 759. [2024-11-27 20:14:39,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 759 states, 655 states have (on average 1.131297709923664) internal successors, (741), 658 states have internal predecessors, (741), 71 states have call successors, (71), 32 states have call predecessors, (71), 32 states have return successors, (71), 68 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-27 20:14:39,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 883 transitions. [2024-11-27 20:14:39,241 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 883 transitions. Word has length 164 [2024-11-27 20:14:39,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:14:39,242 INFO L471 AbstractCegarLoop]: Abstraction has 759 states and 883 transitions. [2024-11-27 20:14:39,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 20:14:39,242 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 883 transitions. [2024-11-27 20:14:39,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-27 20:14:39,243 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:14:39,243 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] [2024-11-27 20:14:39,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-11-27 20:14:39,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:14:39,444 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:14:39,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:39,444 INFO L85 PathProgramCache]: Analyzing trace with hash 255537965, now seen corresponding path program 1 times [2024-11-27 20:14:39,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:14:39,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936889384] [2024-11-27 20:14:39,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:14:39,445 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:14:39,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:14:39,446 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:14:39,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-11-27 20:14:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:14:40,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 20:14:40,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:14:40,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 20:14:41,179 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:14:41,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 67 [2024-11-27 20:14:41,710 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:14:41,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 89 treesize of output 76 [2024-11-27 20:14:41,918 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:14:41,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 89 treesize of output 76 [2024-11-27 20:14:42,124 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:14:42,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 100 treesize of output 76 [2024-11-27 20:14:43,306 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:14:43,307 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 80 treesize of output 28 [2024-11-27 20:14:43,542 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-27 20:14:43,542 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:14:43,542 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:14:43,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936889384] [2024-11-27 20:14:43,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936889384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:14:43,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:14:43,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:14:43,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988580304] [2024-11-27 20:14:43,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:14:43,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:14:43,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:14:43,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:14:43,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:14:43,543 INFO L87 Difference]: Start difference. First operand 759 states and 883 transitions. Second operand has 12 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 20:14:46,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:14:50,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:15:03,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:03,002 INFO L93 Difference]: Finished difference Result 1526 states and 1774 transitions. [2024-11-27 20:15:03,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 20:15:03,003 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 166 [2024-11-27 20:15:03,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:15:03,009 INFO L225 Difference]: With dead ends: 1526 [2024-11-27 20:15:03,009 INFO L226 Difference]: Without dead ends: 838 [2024-11-27 20:15:03,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:15:03,011 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 146 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:15:03,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 556 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 18.3s Time] [2024-11-27 20:15:03,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-27 20:15:03,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 747. [2024-11-27 20:15:03,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 643 states have (on average 1.115085536547434) internal successors, (717), 646 states have internal predecessors, (717), 71 states have call successors, (71), 32 states have call predecessors, (71), 32 states have return successors, (71), 68 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-27 20:15:03,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 859 transitions. [2024-11-27 20:15:03,206 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 859 transitions. Word has length 166 [2024-11-27 20:15:03,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:15:03,207 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 859 transitions. [2024-11-27 20:15:03,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 20:15:03,207 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 859 transitions. [2024-11-27 20:15:03,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-27 20:15:03,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:15:03,208 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] [2024-11-27 20:15:03,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2024-11-27 20:15:03,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:15:03,409 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:15:03,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:03,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1079803211, now seen corresponding path program 1 times [2024-11-27 20:15:03,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:15:03,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759994390] [2024-11-27 20:15:03,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:03,410 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:15:03,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:15:03,413 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:15:03,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-11-27 20:15:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:04,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 20:15:04,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:04,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 20:15:05,157 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:15:05,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2024-11-27 20:15:05,630 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:15:05,630 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 76 treesize of output 57 [2024-11-27 20:15:05,726 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:15:05,726 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 67 treesize of output 25 [2024-11-27 20:15:05,974 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-27 20:15:05,974 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:15:05,974 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:15:05,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759994390] [2024-11-27 20:15:05,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759994390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:15:05,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:15:05,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:15:05,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620815290] [2024-11-27 20:15:05,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:15:05,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:15:05,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:15:05,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:15:05,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:15:05,976 INFO L87 Difference]: Start difference. First operand 747 states and 859 transitions. Second operand has 12 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 20:15:07,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:15:09,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:15:12,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:15:25,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:25,464 INFO L93 Difference]: Finished difference Result 1340 states and 1542 transitions. [2024-11-27 20:15:25,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 20:15:25,464 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 166 [2024-11-27 20:15:25,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:15:25,467 INFO L225 Difference]: With dead ends: 1340 [2024-11-27 20:15:25,467 INFO L226 Difference]: Without dead ends: 664 [2024-11-27 20:15:25,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:15:25,468 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 241 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:15:25,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 540 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 18.0s Time] [2024-11-27 20:15:25,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2024-11-27 20:15:25,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 573. [2024-11-27 20:15:25,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 469 states have (on average 1.0938166311300639) internal successors, (513), 472 states have internal predecessors, (513), 71 states have call successors, (71), 32 states have call predecessors, (71), 32 states have return successors, (71), 68 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-27 20:15:25,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 655 transitions. [2024-11-27 20:15:25,636 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 655 transitions. Word has length 166 [2024-11-27 20:15:25,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:15:25,636 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 655 transitions. [2024-11-27 20:15:25,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 20:15:25,636 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 655 transitions. [2024-11-27 20:15:25,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-27 20:15:25,638 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:15:25,638 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] [2024-11-27 20:15:25,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2024-11-27 20:15:25,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:15:25,838 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:15:25,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:25,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1870212235, now seen corresponding path program 1 times [2024-11-27 20:15:25,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:15:25,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668002430] [2024-11-27 20:15:25,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:25,840 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:15:25,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:15:25,842 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:15:25,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-11-27 20:15:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:26,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-27 20:15:26,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:27,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 20:15:29,500 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:15:29,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 130 treesize of output 57 [2024-11-27 20:15:30,396 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:15:30,396 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 125 treesize of output 67 [2024-11-27 20:15:31,776 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:15:31,776 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 140 treesize of output 70 [2024-11-27 20:15:32,940 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:15:32,940 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 140 treesize of output 70 [2024-11-27 20:15:34,077 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:15:34,077 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 140 treesize of output 70 [2024-11-27 20:15:35,214 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:15:35,214 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 140 treesize of output 70 [2024-11-27 20:15:36,368 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:15:36,369 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 135 treesize of output 80 [2024-11-27 20:15:38,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:15:38,233 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 258 treesize of output 144 [2024-11-27 20:15:45,329 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:15:45,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 244 treesize of output 138 [2024-11-27 20:15:47,918 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:15:47,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 244 treesize of output 138 [2024-11-27 20:15:50,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:15:50,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 245 treesize of output 158 [2024-11-27 20:16:23,838 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:16:23,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 406 treesize of output 136 [2024-11-27 20:16:25,470 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 430 proven. 42 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-27 20:16:25,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:16:41,224 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:16:41,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668002430] [2024-11-27 20:16:41,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668002430] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:16:41,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [870484089] [2024-11-27 20:16:41,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:16:41,224 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 20:16:41,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 20:16:41,226 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 20:16:41,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a1b6e8f-20cd-43e0-8318-327aa4d89c87/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-11-27 20:16:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:16:44,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-27 20:16:44,265 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:16:47,722 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 [2024-11-27 20:17:02,482 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:17:02,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 61 [2024-11-27 20:17:05,133 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:17:05,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 61 [2024-11-27 20:17:07,655 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:17:07,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 61 [2024-11-27 20:17:10,031 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:17:10,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 61 [2024-11-27 20:17:12,401 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:17:12,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 61 [2024-11-27 20:17:14,725 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:17:14,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 61 [2024-11-27 20:17:16,351 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:17:16,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 69 [2024-11-27 20:17:19,500 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:17:19,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 208 treesize of output 130 [2024-11-27 20:17:28,136 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:17:28,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 100 [2024-11-27 20:17:30,100 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:17:30,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 100 [2024-11-27 20:17:31,956 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:17:31,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 109 treesize of output 100 [2024-11-27 20:17:57,808 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:17:57,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 212 treesize of output 104 [2024-11-27 20:17:58,792 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 350 proven. 42 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-27 20:17:58,792 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:18:31,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [870484089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:18:31,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:18:31,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 27 [2024-11-27 20:18:31,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868961974] [2024-11-27 20:18:31,248 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:18:31,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-27 20:18:31,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:18:31,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-27 20:18:31,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=857, Unknown=2, NotChecked=0, Total=1056 [2024-11-27 20:18:31,249 INFO L87 Difference]: Start difference. First operand 573 states and 655 transitions. Second operand has 28 states, 26 states have (on average 6.1923076923076925) internal successors, (161), 25 states have internal predecessors, (161), 9 states have call successors, (38), 9 states have call predecessors, (38), 9 states have return successors, (38), 7 states have call predecessors, (38), 9 states have call successors, (38) [2024-11-27 20:18:33,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:18:35,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:18:37,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:18:38,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:18:40,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:18:43,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:18:47,440 WARN L539 Checker$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 [] [2024-11-27 20:18:48,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:18:49,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 20:19:36,344 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]