./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-36.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_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-36.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ea2e2ade8e0851c675b880c5454324855941c707d3ca299c056336043784e61 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:11:39,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:11:39,208 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:11:39,213 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:11:39,213 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:11:39,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:11:39,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:11:39,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:11:39,234 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:11:39,234 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:11:39,234 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:11:39,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:11:39,235 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:11:39,235 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:11:39,235 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:11:39,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:11:39,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:11:39,235 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:11:39,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:11:39,236 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:11:39,236 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:11:39,236 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:11:39,236 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:11:39,236 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:11:39,236 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:11:39,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:11:39,236 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:11:39,236 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:11:39,236 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:11:39,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:11:39,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:11:39,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:11:39,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:11:39,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:11:39,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:11:39,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:11:39,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:11:39,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:11:39,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:11:39,237 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:11:39,237 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:11:39,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:11:39,238 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:11:39,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:11:39,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:11:39,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:11:39,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:11:39,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:11:39,238 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_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ea2e2ade8e0851c675b880c5454324855941c707d3ca299c056336043784e61 [2024-12-02 08:11:39,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:11:39,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:11:39,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:11:39,503 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:11:39,503 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:11:39,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-36.i [2024-12-02 08:11:42,146 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/data/cfa259635/0e077b525433441d9a20fe449aa80539/FLAG580ca07b9 [2024-12-02 08:11:42,348 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:11:42,349 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-36.i [2024-12-02 08:11:42,356 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/data/cfa259635/0e077b525433441d9a20fe449aa80539/FLAG580ca07b9 [2024-12-02 08:11:42,369 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/data/cfa259635/0e077b525433441d9a20fe449aa80539 [2024-12-02 08:11:42,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:11:42,372 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:11:42,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:11:42,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:11:42,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:11:42,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:11:42" (1/1) ... [2024-12-02 08:11:42,377 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38e2a51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:42, skipping insertion in model container [2024-12-02 08:11:42,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:11:42" (1/1) ... [2024-12-02 08:11:42,392 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:11:42,495 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_d535034b-a23b-4934-9614-07675535a952/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-36.i[916,929] [2024-12-02 08:11:42,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:11:42,550 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:11:42,558 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_d535034b-a23b-4934-9614-07675535a952/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-36.i[916,929] [2024-12-02 08:11:42,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:11:42,611 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:11:42,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:42 WrapperNode [2024-12-02 08:11:42,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:11:42,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:11:42,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:11:42,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:11:42,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:42" (1/1) ... [2024-12-02 08:11:42,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:42" (1/1) ... [2024-12-02 08:11:42,663 INFO L138 Inliner]: procedures = 30, calls = 156, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 551 [2024-12-02 08:11:42,664 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:11:42,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:11:42,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:11:42,665 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:11:42,672 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:42" (1/1) ... [2024-12-02 08:11:42,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:42" (1/1) ... [2024-12-02 08:11:42,678 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:42" (1/1) ... [2024-12-02 08:11:42,686 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-12-02 08:11:42,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:42" (1/1) ... [2024-12-02 08:11:42,686 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:42" (1/1) ... [2024-12-02 08:11:42,707 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:42" (1/1) ... [2024-12-02 08:11:42,709 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:42" (1/1) ... [2024-12-02 08:11:42,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:42" (1/1) ... [2024-12-02 08:11:42,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:42" (1/1) ... [2024-12-02 08:11:42,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:42" (1/1) ... [2024-12-02 08:11:42,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:11:42,723 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:11:42,723 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:11:42,724 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:11:42,724 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:42" (1/1) ... [2024-12-02 08:11:42,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:11:42,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:11:42,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:11:42,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:11:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:11:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-12-02 08:11:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-12-02 08:11:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-12-02 08:11:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 08:11:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-12-02 08:11:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 08:11:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:11:42,774 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:11:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 08:11:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:11:42,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:11:42,867 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:11:42,868 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:11:43,353 INFO L? ?]: Removed 140 outVars from TransFormulas that were not future-live. [2024-12-02 08:11:43,354 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:11:43,374 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:11:43,374 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:11:43,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:11:43 BoogieIcfgContainer [2024-12-02 08:11:43,375 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:11:43,377 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:11:43,377 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:11:43,382 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:11:43,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:11:42" (1/3) ... [2024-12-02 08:11:43,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea9af3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:11:43, skipping insertion in model container [2024-12-02 08:11:43,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:42" (2/3) ... [2024-12-02 08:11:43,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea9af3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:11:43, skipping insertion in model container [2024-12-02 08:11:43,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:11:43" (3/3) ... [2024-12-02 08:11:43,384 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-36.i [2024-12-02 08:11:43,399 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:11:43,400 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-36.i that has 2 procedures, 123 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:11:43,461 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:11:43,475 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;@4708fe6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:11:43,475 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:11:43,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 109 states have (on average 1.4862385321100917) internal successors, (162), 110 states have internal predecessors, (162), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 08:11:43,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 08:11:43,491 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:43,492 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:43,492 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:43,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:43,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1983282266, now seen corresponding path program 1 times [2024-12-02 08:11:43,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:11:43,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150004354] [2024-12-02 08:11:43,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:43,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:11:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:11:43,789 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-12-02 08:11:43,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:11:43,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150004354] [2024-12-02 08:11:43,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150004354] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:11:43,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332207122] [2024-12-02 08:11:43,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:43,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:11:43,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:11:43,793 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:11:43,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:11:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:11:44,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:11:44,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:11:44,036 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-12-02 08:11:44,037 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:11:44,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332207122] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:11:44,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:11:44,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:11:44,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634933536] [2024-12-02 08:11:44,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:11:44,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:11:44,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:11:44,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:11:44,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:11:44,060 INFO L87 Difference]: Start difference. First operand has 123 states, 109 states have (on average 1.4862385321100917) internal successors, (162), 110 states have internal predecessors, (162), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 08:11:44,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:11:44,082 INFO L93 Difference]: Finished difference Result 239 states and 373 transitions. [2024-12-02 08:11:44,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:11:44,084 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-12-02 08:11:44,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:11:44,089 INFO L225 Difference]: With dead ends: 239 [2024-12-02 08:11:44,089 INFO L226 Difference]: Without dead ends: 119 [2024-12-02 08:11:44,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:11:44,094 INFO L435 NwaCegarLoop]: 177 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, 177 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:11:44,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:11:44,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-12-02 08:11:44,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-12-02 08:11:44,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 106 states have (on average 1.4622641509433962) internal successors, (155), 106 states have internal predecessors, (155), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 08:11:44,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 177 transitions. [2024-12-02 08:11:44,129 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 177 transitions. Word has length 109 [2024-12-02 08:11:44,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:11:44,129 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 177 transitions. [2024-12-02 08:11:44,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 08:11:44,130 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 177 transitions. [2024-12-02 08:11:44,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 08:11:44,132 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:44,133 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:44,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:11:44,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 08:11:44,333 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:44,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:44,334 INFO L85 PathProgramCache]: Analyzing trace with hash 639091296, now seen corresponding path program 1 times [2024-12-02 08:11:44,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:11:44,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146942192] [2024-12-02 08:11:44,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:44,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:11:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:11:46,307 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:11:46,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:11:46,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146942192] [2024-12-02 08:11:46,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146942192] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:11:46,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:11:46,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:11:46,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538833444] [2024-12-02 08:11:46,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:11:46,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:11:46,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:11:46,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:11:46,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:11:46,310 INFO L87 Difference]: Start difference. First operand 119 states and 177 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:11:46,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:11:46,671 INFO L93 Difference]: Finished difference Result 352 states and 527 transitions. [2024-12-02 08:11:46,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:11:46,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-12-02 08:11:46,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:11:46,674 INFO L225 Difference]: With dead ends: 352 [2024-12-02 08:11:46,674 INFO L226 Difference]: Without dead ends: 236 [2024-12-02 08:11:46,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:11:46,675 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 120 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:11:46,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 273 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:11:46,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-12-02 08:11:46,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 232. [2024-12-02 08:11:46,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 207 states have (on average 1.4685990338164252) internal successors, (304), 207 states have internal predecessors, (304), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 08:11:46,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 348 transitions. [2024-12-02 08:11:46,699 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 348 transitions. Word has length 109 [2024-12-02 08:11:46,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:11:46,700 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 348 transitions. [2024-12-02 08:11:46,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:11:46,700 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 348 transitions. [2024-12-02 08:11:46,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 08:11:46,702 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:46,702 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:46,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:11:46,702 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:46,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:46,703 INFO L85 PathProgramCache]: Analyzing trace with hash -640772382, now seen corresponding path program 1 times [2024-12-02 08:11:46,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:11:46,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384637579] [2024-12-02 08:11:46,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:46,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:11:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:11:47,934 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:11:47,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:11:47,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384637579] [2024-12-02 08:11:47,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384637579] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:11:47,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:11:47,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:11:47,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089204542] [2024-12-02 08:11:47,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:11:47,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:11:47,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:11:47,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:11:47,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:11:47,936 INFO L87 Difference]: Start difference. First operand 232 states and 348 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:11:48,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:11:48,253 INFO L93 Difference]: Finished difference Result 466 states and 699 transitions. [2024-12-02 08:11:48,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:11:48,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-12-02 08:11:48,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:11:48,255 INFO L225 Difference]: With dead ends: 466 [2024-12-02 08:11:48,255 INFO L226 Difference]: Without dead ends: 237 [2024-12-02 08:11:48,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:11:48,257 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 118 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:11:48,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 273 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:11:48,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-12-02 08:11:48,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 233. [2024-12-02 08:11:48,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 208 states have (on average 1.4663461538461537) internal successors, (305), 208 states have internal predecessors, (305), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 08:11:48,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 349 transitions. [2024-12-02 08:11:48,273 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 349 transitions. Word has length 109 [2024-12-02 08:11:48,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:11:48,274 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 349 transitions. [2024-12-02 08:11:48,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:11:48,274 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 349 transitions. [2024-12-02 08:11:48,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 08:11:48,276 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:48,276 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:48,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:11:48,276 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:48,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:48,277 INFO L85 PathProgramCache]: Analyzing trace with hash -382606944, now seen corresponding path program 1 times [2024-12-02 08:11:48,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:11:48,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992803032] [2024-12-02 08:11:48,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:48,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:11:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:11:48,505 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:11:48,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:11:48,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992803032] [2024-12-02 08:11:48,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992803032] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:11:48,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:11:48,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:11:48,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518063466] [2024-12-02 08:11:48,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:11:48,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:11:48,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:11:48,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:11:48,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:11:48,507 INFO L87 Difference]: Start difference. First operand 233 states and 349 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:11:48,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:11:48,782 INFO L93 Difference]: Finished difference Result 638 states and 959 transitions. [2024-12-02 08:11:48,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:11:48,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-12-02 08:11:48,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:11:48,785 INFO L225 Difference]: With dead ends: 638 [2024-12-02 08:11:48,785 INFO L226 Difference]: Without dead ends: 408 [2024-12-02 08:11:48,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:11:48,788 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 182 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:11:48,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 384 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:11:48,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-12-02 08:11:48,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 354. [2024-12-02 08:11:48,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 317 states have (on average 1.473186119873817) internal successors, (467), 317 states have internal predecessors, (467), 33 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-12-02 08:11:48,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 533 transitions. [2024-12-02 08:11:48,814 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 533 transitions. Word has length 109 [2024-12-02 08:11:48,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:11:48,814 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 533 transitions. [2024-12-02 08:11:48,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:11:48,815 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 533 transitions. [2024-12-02 08:11:48,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 08:11:48,816 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:48,816 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:48,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:11:48,816 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:48,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:48,817 INFO L85 PathProgramCache]: Analyzing trace with hash -336809305, now seen corresponding path program 1 times [2024-12-02 08:11:48,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:11:48,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729594367] [2024-12-02 08:11:48,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:48,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:11:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:11:49,548 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:11:49,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:11:49,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729594367] [2024-12-02 08:11:49,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729594367] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:11:49,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:11:49,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:11:49,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726481997] [2024-12-02 08:11:49,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:11:49,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:11:49,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:11:49,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:11:49,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:11:49,550 INFO L87 Difference]: Start difference. First operand 354 states and 533 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:11:50,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:11:50,349 INFO L93 Difference]: Finished difference Result 1131 states and 1704 transitions. [2024-12-02 08:11:50,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:11:50,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-12-02 08:11:50,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:11:50,355 INFO L225 Difference]: With dead ends: 1131 [2024-12-02 08:11:50,355 INFO L226 Difference]: Without dead ends: 901 [2024-12-02 08:11:50,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:11:50,356 INFO L435 NwaCegarLoop]: 295 mSDtfsCounter, 332 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:11:50,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 1025 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:11:50,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2024-12-02 08:11:50,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 432. [2024-12-02 08:11:50,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 395 states have (on average 1.491139240506329) internal successors, (589), 395 states have internal predecessors, (589), 33 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-12-02 08:11:50,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 655 transitions. [2024-12-02 08:11:50,389 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 655 transitions. Word has length 110 [2024-12-02 08:11:50,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:11:50,390 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 655 transitions. [2024-12-02 08:11:50,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:11:50,390 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 655 transitions. [2024-12-02 08:11:50,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 08:11:50,391 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:50,391 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:50,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:11:50,391 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:50,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:50,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1111424543, now seen corresponding path program 1 times [2024-12-02 08:11:50,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:11:50,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622779324] [2024-12-02 08:11:50,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:50,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:11:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:11:51,194 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:11:51,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:11:51,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622779324] [2024-12-02 08:11:51,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622779324] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:11:51,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:11:51,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:11:51,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471673299] [2024-12-02 08:11:51,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:11:51,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:11:51,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:11:51,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:11:51,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:11:51,196 INFO L87 Difference]: Start difference. First operand 432 states and 655 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 08:11:51,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:11:51,826 INFO L93 Difference]: Finished difference Result 935 states and 1410 transitions. [2024-12-02 08:11:51,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:11:51,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2024-12-02 08:11:51,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:11:51,830 INFO L225 Difference]: With dead ends: 935 [2024-12-02 08:11:51,830 INFO L226 Difference]: Without dead ends: 666 [2024-12-02 08:11:51,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:11:51,832 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 140 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:11:51,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 587 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:11:51,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2024-12-02 08:11:51,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 374. [2024-12-02 08:11:51,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 337 states have (on average 1.4688427299703264) internal successors, (495), 337 states have internal predecessors, (495), 33 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-12-02 08:11:51,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 561 transitions. [2024-12-02 08:11:51,866 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 561 transitions. Word has length 112 [2024-12-02 08:11:51,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:11:51,867 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 561 transitions. [2024-12-02 08:11:51,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 08:11:51,867 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 561 transitions. [2024-12-02 08:11:51,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 08:11:51,868 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:51,868 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:51,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:11:51,869 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:51,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:51,869 INFO L85 PathProgramCache]: Analyzing trace with hash 981741587, now seen corresponding path program 1 times [2024-12-02 08:11:51,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:11:51,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223823919] [2024-12-02 08:11:51,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:51,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:11:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:11:51,930 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:11:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:11:52,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 08:11:52,005 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 08:11:52,006 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:11:52,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:11:52,010 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:52,051 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:11:52,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:11:52 BoogieIcfgContainer [2024-12-02 08:11:52,054 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:11:52,055 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:11:52,055 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:11:52,055 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:11:52,055 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:11:43" (3/4) ... [2024-12-02 08:11:52,057 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 08:11:52,058 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:11:52,059 INFO L158 Benchmark]: Toolchain (without parser) took 9686.88ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 118.5MB in the beginning and 470.1MB in the end (delta: -351.6MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2024-12-02 08:11:52,059 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:11:52,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.54ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 102.3MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:11:52,059 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.08ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 98.5MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:11:52,060 INFO L158 Benchmark]: Boogie Preprocessor took 58.25ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 95.0MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:11:52,060 INFO L158 Benchmark]: RCFGBuilder took 651.60ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 114.0MB in the end (delta: -18.9MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2024-12-02 08:11:52,060 INFO L158 Benchmark]: TraceAbstraction took 8677.27ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 113.5MB in the beginning and 470.1MB in the end (delta: -356.6MB). Peak memory consumption was 307.5MB. Max. memory is 16.1GB. [2024-12-02 08:11:52,060 INFO L158 Benchmark]: Witness Printer took 3.31ms. Allocated memory is still 520.1MB. Free memory was 470.1MB in the beginning and 470.1MB in the end (delta: 46.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:11:52,062 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.54ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 102.3MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.08ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 98.5MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.25ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 95.0MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 651.60ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 114.0MB in the end (delta: -18.9MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8677.27ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 113.5MB in the beginning and 470.1MB in the end (delta: -356.6MB). Peak memory consumption was 307.5MB. Max. memory is 16.1GB. * Witness Printer took 3.31ms. Allocated memory is still 520.1MB. Free memory was 470.1MB in the beginning and 470.1MB in the end (delta: 46.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftRight at line 55, overapproximation of someBinaryFLOATComparisonOperation at line 89, overapproximation of someBinaryFLOATComparisonOperation at line 94, overapproximation of someBinaryFLOATComparisonOperation at line 89, overapproximation of someBinaryFLOATComparisonOperation at line 94, overapproximation of someBinaryFLOATComparisonOperation at line 67, overapproximation of someBinaryDOUBLEComparisonOperation at line 99, overapproximation of someBinaryDOUBLEComparisonOperation at line 99, overapproximation of someBinaryDOUBLEComparisonOperation at line 72, overapproximation of someBinaryDOUBLEComparisonOperation at line 74, overapproximation of someBinaryDOUBLEComparisonOperation at line 103, overapproximation of someBinaryDOUBLEComparisonOperation at line 103, overapproximation of someBinaryDOUBLEComparisonOperation at line 112, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryDOUBLEComparisonOperation at line 58, overapproximation of someBinaryDOUBLEComparisonOperation at line 74. Possible FailurePath: [L36] unsigned char isInitial = 0; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 1, 9999999999.875, 0, 4.25, 1, 1, 64.2, 9.5, 199.5, 3.5, 1, 2 }; [L51] unsigned char last_1_WrapperStruct00_var_1_14 = 1; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_14=1] [L116] isInitial = 1 [L117] FCALL initially() [L119] CALL updateLastVariables() [L109] EXPR WrapperStruct00.var_1_14 [L109] last_1_WrapperStruct00_var_1_14 = WrapperStruct00.var_1_14 [L119] RET updateLastVariables() [L120] CALL updateVariables() [L88] WrapperStruct00.var_1_3 = __VERIFIER_nondet_float() [L89] EXPR WrapperStruct00.var_1_3 [L89] EXPR WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F [L89] EXPR WrapperStruct00.var_1_3 [L89] EXPR WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L89] EXPR (WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L89] CALL assume_abort_if_not((WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L89] RET assume_abort_if_not((WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L90] WrapperStruct00.var_1_4 = __VERIFIER_nondet_uchar() [L91] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L92] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L93] WrapperStruct00.var_1_5 = __VERIFIER_nondet_float() [L94] EXPR WrapperStruct00.var_1_5 [L94] EXPR WrapperStruct00.var_1_5 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_5 <= -1.0e-20F [L94] EXPR WrapperStruct00.var_1_5 [L94] EXPR WrapperStruct00.var_1_5 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_5 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L94] EXPR (WrapperStruct00.var_1_5 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L94] CALL assume_abort_if_not((WrapperStruct00.var_1_5 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L94] RET assume_abort_if_not((WrapperStruct00.var_1_5 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L95] WrapperStruct00.var_1_9 = __VERIFIER_nondet_uchar() [L96] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L97] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L97] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L98] WrapperStruct00.var_1_11 = __VERIFIER_nondet_double() [L99] EXPR WrapperStruct00.var_1_11 [L99] EXPR WrapperStruct00.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_11 <= -1.0e-20F [L99] EXPR WrapperStruct00.var_1_11 [L99] EXPR WrapperStruct00.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_11 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L99] EXPR (WrapperStruct00.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_11 <= -1.0e-20F) || (WrapperStruct00.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_11 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L99] CALL assume_abort_if_not((WrapperStruct00.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_11 <= -1.0e-20F) || (WrapperStruct00.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_11 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L99] RET assume_abort_if_not((WrapperStruct00.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_11 <= -1.0e-20F) || (WrapperStruct00.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_11 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L100] WrapperStruct00.var_1_12 = __VERIFIER_nondet_double() [L101] EXPR WrapperStruct00.var_1_12 [L101] EXPR WrapperStruct00.var_1_12 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F [L101] EXPR WrapperStruct00.var_1_12 [L101] EXPR WrapperStruct00.var_1_12 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L101] EXPR (WrapperStruct00.var_1_12 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F) || (WrapperStruct00.var_1_12 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_12 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L101] CALL assume_abort_if_not((WrapperStruct00.var_1_12 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F) || (WrapperStruct00.var_1_12 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_12 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L101] RET assume_abort_if_not((WrapperStruct00.var_1_12 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F) || (WrapperStruct00.var_1_12 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_12 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L102] WrapperStruct00.var_1_13 = __VERIFIER_nondet_double() [L103] EXPR WrapperStruct00.var_1_13 [L103] EXPR WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F [L103] EXPR WrapperStruct00.var_1_13 [L103] EXPR WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L103] EXPR (WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L103] CALL assume_abort_if_not((WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L103] RET assume_abort_if_not((WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L104] WrapperStruct00.var_1_16 = __VERIFIER_nondet_uchar() [L105] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_16 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L105] RET assume_abort_if_not(WrapperStruct00.var_1_16 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L106] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L106] CALL assume_abort_if_not(WrapperStruct00.var_1_16 <= 254) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L106] RET assume_abort_if_not(WrapperStruct00.var_1_16 <= 254) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L120] RET updateVariables() [L121] CALL step() [L55] EXPR last_1_WrapperStruct00_var_1_14 >> last_1_WrapperStruct00_var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L55] COND FALSE !((last_1_WrapperStruct00_var_1_14 >> last_1_WrapperStruct00_var_1_14) < (- last_1_WrapperStruct00_var_1_14)) [L58] EXPR WrapperStruct00.var_1_13 [L58] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L58] COND FALSE !(WrapperStruct00.var_1_13 == (- WrapperStruct00.var_1_12)) [L65] WrapperStruct00.var_1_14 = 0 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L67] EXPR WrapperStruct00.var_1_5 [L67] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L67] COND TRUE WrapperStruct00.var_1_5 > WrapperStruct00.var_1_3 [L68] WrapperStruct00.var_1_10 = 4.6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L72] EXPR WrapperStruct00.var_1_10 [L72] EXPR WrapperStruct00.var_1_10 [L72] unsigned char stepLocal_0 = WrapperStruct00.var_1_10 > WrapperStruct00.var_1_10; [L73] stepLocal_0 && WrapperStruct00.var_1_7 [L73] EXPR WrapperStruct00.var_1_7 [L73] stepLocal_0 && WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L73] COND TRUE stepLocal_0 && WrapperStruct00.var_1_7 [L74] EXPR WrapperStruct00.var_1_10 [L74] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L74] EXPR ((WrapperStruct00.var_1_10) > ((- WrapperStruct00.var_1_10))) ? (WrapperStruct00.var_1_10) : ((- WrapperStruct00.var_1_10)) [L74] EXPR WrapperStruct00.var_1_10 [L74] EXPR ((WrapperStruct00.var_1_10) > ((- WrapperStruct00.var_1_10))) ? (WrapperStruct00.var_1_10) : ((- WrapperStruct00.var_1_10)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L74] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L74] COND TRUE ((((WrapperStruct00.var_1_10) > ((- WrapperStruct00.var_1_10))) ? (WrapperStruct00.var_1_10) : ((- WrapperStruct00.var_1_10)))) != WrapperStruct00.var_1_10 [L75] WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L75] COND TRUE WrapperStruct00.var_1_7 [L76] WrapperStruct00.var_1_1 = 10u VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L121] RET step() [L122] CALL, EXPR property() [L112] EXPR WrapperStruct00.var_1_10 [L112] EXPR WrapperStruct00.var_1_10 [L112] EXPR (WrapperStruct00.var_1_10 > WrapperStruct00.var_1_10) && WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L112] EXPR ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_10) && WrapperStruct00.var_1_7) ? ((((((WrapperStruct00.var_1_10) > ((- WrapperStruct00.var_1_10))) ? (WrapperStruct00.var_1_10) : ((- WrapperStruct00.var_1_10)))) != WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_7 ? (WrapperStruct00.var_1_1 == ((unsigned long int) 10u)) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14)) [L112] EXPR WrapperStruct00.var_1_1 [L112] EXPR WrapperStruct00.var_1_14 [L112] EXPR ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_10) && WrapperStruct00.var_1_7) ? ((((((WrapperStruct00.var_1_10) > ((- WrapperStruct00.var_1_10))) ? (WrapperStruct00.var_1_10) : ((- WrapperStruct00.var_1_10)))) != WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_7 ? (WrapperStruct00.var_1_1 == ((unsigned long int) 10u)) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L112] EXPR (((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_10) && WrapperStruct00.var_1_7) ? ((((((WrapperStruct00.var_1_10) > ((- WrapperStruct00.var_1_10))) ? (WrapperStruct00.var_1_10) : ((- WrapperStruct00.var_1_10)))) != WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_7 ? (WrapperStruct00.var_1_1 == ((unsigned long int) 10u)) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14))) && (((last_1_WrapperStruct00_var_1_14 >> last_1_WrapperStruct00_var_1_14) < (- last_1_WrapperStruct00_var_1_14)) ? (WrapperStruct00.var_1_7 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_9))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L112] EXPR ((((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_10) && WrapperStruct00.var_1_7) ? ((((((WrapperStruct00.var_1_10) > ((- WrapperStruct00.var_1_10))) ? (WrapperStruct00.var_1_10) : ((- WrapperStruct00.var_1_10)))) != WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_7 ? (WrapperStruct00.var_1_1 == ((unsigned long int) 10u)) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14))) && (((last_1_WrapperStruct00_var_1_14 >> last_1_WrapperStruct00_var_1_14) < (- last_1_WrapperStruct00_var_1_14)) ? (WrapperStruct00.var_1_7 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_9))) : 1)) && ((WrapperStruct00.var_1_5 > WrapperStruct00.var_1_3) ? (WrapperStruct00.var_1_10 == ((double) 4.6)) : (WrapperStruct00.var_1_10 == ((double) ((((WrapperStruct00.var_1_11) > (((((WrapperStruct00.var_1_12) > (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_13))))) ? (WrapperStruct00.var_1_11) : (((((WrapperStruct00.var_1_12) > (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_13))))))))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L112] EXPR (((((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_10) && WrapperStruct00.var_1_7) ? ((((((WrapperStruct00.var_1_10) > ((- WrapperStruct00.var_1_10))) ? (WrapperStruct00.var_1_10) : ((- WrapperStruct00.var_1_10)))) != WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_7 ? (WrapperStruct00.var_1_1 == ((unsigned long int) 10u)) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14))) && (((last_1_WrapperStruct00_var_1_14 >> last_1_WrapperStruct00_var_1_14) < (- last_1_WrapperStruct00_var_1_14)) ? (WrapperStruct00.var_1_7 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_9))) : 1)) && ((WrapperStruct00.var_1_5 > WrapperStruct00.var_1_3) ? (WrapperStruct00.var_1_10 == ((double) 4.6)) : (WrapperStruct00.var_1_10 == ((double) ((((WrapperStruct00.var_1_11) > (((((WrapperStruct00.var_1_12) > (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_13))))) ? (WrapperStruct00.var_1_11) : (((((WrapperStruct00.var_1_12) > (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_13)))))))))) && ((WrapperStruct00.var_1_13 == (- WrapperStruct00.var_1_12)) ? ((WrapperStruct00.var_1_7 && WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_14 == ((unsigned char) WrapperStruct00.var_1_16)) : (WrapperStruct00.var_1_14 == ((unsigned char) WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_14 == ((unsigned char) 0))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L112-L113] return (((((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_10) && WrapperStruct00.var_1_7) ? ((((((WrapperStruct00.var_1_10) > ((- WrapperStruct00.var_1_10))) ? (WrapperStruct00.var_1_10) : ((- WrapperStruct00.var_1_10)))) != WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_7 ? (WrapperStruct00.var_1_1 == ((unsigned long int) 10u)) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_14))) && (((last_1_WrapperStruct00_var_1_14 >> last_1_WrapperStruct00_var_1_14) < (- last_1_WrapperStruct00_var_1_14)) ? (WrapperStruct00.var_1_7 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_9))) : 1)) && ((WrapperStruct00.var_1_5 > WrapperStruct00.var_1_3) ? (WrapperStruct00.var_1_10 == ((double) 4.6)) : (WrapperStruct00.var_1_10 == ((double) ((((WrapperStruct00.var_1_11) > (((((WrapperStruct00.var_1_12) > (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_13))))) ? (WrapperStruct00.var_1_11) : (((((WrapperStruct00.var_1_12) > (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_13)))))))))) && ((WrapperStruct00.var_1_13 == (- WrapperStruct00.var_1_12)) ? ((WrapperStruct00.var_1_7 && WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_14 == ((unsigned char) WrapperStruct00.var_1_16)) : (WrapperStruct00.var_1_14 == ((unsigned char) WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_14 == ((unsigned char) 0))) ; [L122] RET, EXPR property() [L122] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_14=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 123 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 7, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 893 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 892 mSDsluCounter, 2719 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1784 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1759 IncrementalHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 935 mSDtfsCounter, 1759 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=432occurred in iteration=5, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 823 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 881 NumberOfCodeBlocks, 881 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 760 ConstructedInterpolants, 0 QuantifiedInterpolants, 1943 SizeOfPredicates, 0 NumberOfNonLiveVariables, 405 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 1520/1540 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 08:11:52,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-36.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ea2e2ade8e0851c675b880c5454324855941c707d3ca299c056336043784e61 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:11:54,003 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:11:54,083 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 08:11:54,088 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:11:54,088 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:11:54,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:11:54,109 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:11:54,109 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:11:54,109 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:11:54,109 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:11:54,109 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:11:54,109 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:11:54,110 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:11:54,110 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:11:54,110 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:11:54,110 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:11:54,110 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:11:54,110 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:11:54,110 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:11:54,110 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:11:54,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:11:54,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:11:54,111 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:11:54,111 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 08:11:54,111 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 08:11:54,111 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 08:11:54,111 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:11:54,111 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:11:54,111 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:11:54,111 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:11:54,112 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:11:54,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:11:54,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:11:54,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:11:54,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:11:54,112 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:11:54,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:11:54,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:11:54,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:11:54,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:11:54,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:11:54,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:11:54,113 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:11:54,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:11:54,113 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 08:11:54,113 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 08:11:54,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:11:54,113 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:11:54,113 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:11:54,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:11:54,114 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_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ea2e2ade8e0851c675b880c5454324855941c707d3ca299c056336043784e61 [2024-12-02 08:11:54,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:11:54,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:11:54,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:11:54,336 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:11:54,336 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:11:54,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-36.i [2024-12-02 08:11:56,997 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/data/65132df06/68b940dcfff94645b080a652ccefe21f/FLAGa44fc12d0 [2024-12-02 08:11:57,190 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:11:57,191 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-36.i [2024-12-02 08:11:57,199 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/data/65132df06/68b940dcfff94645b080a652ccefe21f/FLAGa44fc12d0 [2024-12-02 08:11:57,215 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/data/65132df06/68b940dcfff94645b080a652ccefe21f [2024-12-02 08:11:57,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:11:57,219 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:11:57,220 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:11:57,220 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:11:57,225 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:11:57,225 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:11:57" (1/1) ... [2024-12-02 08:11:57,226 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356ebf13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:57, skipping insertion in model container [2024-12-02 08:11:57,226 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:11:57" (1/1) ... [2024-12-02 08:11:57,243 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:11:57,373 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_d535034b-a23b-4934-9614-07675535a952/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-36.i[916,929] [2024-12-02 08:11:57,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:11:57,430 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:11:57,438 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_d535034b-a23b-4934-9614-07675535a952/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-36.i[916,929] [2024-12-02 08:11:57,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:11:57,501 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:11:57,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:57 WrapperNode [2024-12-02 08:11:57,501 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:11:57,502 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:11:57,502 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:11:57,502 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:11:57,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:57" (1/1) ... [2024-12-02 08:11:57,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:57" (1/1) ... [2024-12-02 08:11:57,554 INFO L138 Inliner]: procedures = 37, calls = 156, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 536 [2024-12-02 08:11:57,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:11:57,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:11:57,555 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:11:57,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:11:57,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:57" (1/1) ... [2024-12-02 08:11:57,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:57" (1/1) ... [2024-12-02 08:11:57,568 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:57" (1/1) ... [2024-12-02 08:11:57,588 INFO L175 MemorySlicer]: Split 134 memory accesses to 2 slices as follows [2, 132]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 31 writes are split as follows [0, 31]. [2024-12-02 08:11:57,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:57" (1/1) ... [2024-12-02 08:11:57,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:57" (1/1) ... [2024-12-02 08:11:57,610 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:57" (1/1) ... [2024-12-02 08:11:57,611 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:57" (1/1) ... [2024-12-02 08:11:57,616 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:57" (1/1) ... [2024-12-02 08:11:57,619 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:57" (1/1) ... [2024-12-02 08:11:57,621 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:57" (1/1) ... [2024-12-02 08:11:57,626 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:11:57,627 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:11:57,627 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:11:57,627 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:11:57,628 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:57" (1/1) ... [2024-12-02 08:11:57,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:11:57,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:11:57,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:11:57,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:11:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:11:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-12-02 08:11:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-12-02 08:11:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#0 [2024-12-02 08:11:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#1 [2024-12-02 08:11:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-12-02 08:11:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-12-02 08:11:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 08:11:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 08:11:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 08:11:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 08:11:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-02 08:11:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-02 08:11:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 08:11:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 08:11:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-12-02 08:11:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-12-02 08:11:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-12-02 08:11:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-12-02 08:11:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-12-02 08:11:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-12-02 08:11:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:11:57,676 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:11:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-12-02 08:11:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-12-02 08:11:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:11:57,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:11:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 08:11:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 08:11:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 08:11:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 08:11:57,788 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:11:57,789 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:11:59,043 INFO L? ?]: Removed 149 outVars from TransFormulas that were not future-live. [2024-12-02 08:11:59,043 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:11:59,056 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:11:59,056 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:11:59,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:11:59 BoogieIcfgContainer [2024-12-02 08:11:59,057 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:11:59,059 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:11:59,059 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:11:59,064 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:11:59,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:11:57" (1/3) ... [2024-12-02 08:11:59,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706f5815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:11:59, skipping insertion in model container [2024-12-02 08:11:59,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:11:57" (2/3) ... [2024-12-02 08:11:59,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706f5815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:11:59, skipping insertion in model container [2024-12-02 08:11:59,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:11:59" (3/3) ... [2024-12-02 08:11:59,067 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-36.i [2024-12-02 08:11:59,084 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:11:59,085 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-36.i that has 2 procedures, 119 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:11:59,136 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:11:59,146 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;@64a3e55b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:11:59,146 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:11:59,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 105 states have (on average 1.4857142857142858) internal successors, (156), 106 states have internal predecessors, (156), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 08:11:59,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 08:11:59,160 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:59,160 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:59,160 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:59,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:59,164 INFO L85 PathProgramCache]: Analyzing trace with hash 91120692, now seen corresponding path program 1 times [2024-12-02 08:11:59,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:11:59,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347233375] [2024-12-02 08:11:59,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:59,171 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:11:59,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:11:59,173 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:11:59,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 08:11:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:11:59,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:11:59,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:11:59,582 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 08:11:59,582 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:11:59,582 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:11:59,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347233375] [2024-12-02 08:11:59,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347233375] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:11:59,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:11:59,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:11:59,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772851235] [2024-12-02 08:11:59,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:11:59,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:11:59,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:11:59,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:11:59,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:11:59,610 INFO L87 Difference]: Start difference. First operand has 119 states, 105 states have (on average 1.4857142857142858) internal successors, (156), 106 states have internal predecessors, (156), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 08:11:59,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:11:59,635 INFO L93 Difference]: Finished difference Result 227 states and 355 transitions. [2024-12-02 08:11:59,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:11:59,637 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-12-02 08:11:59,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:11:59,643 INFO L225 Difference]: With dead ends: 227 [2024-12-02 08:11:59,643 INFO L226 Difference]: Without dead ends: 111 [2024-12-02 08:11:59,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:11:59,649 INFO L435 NwaCegarLoop]: 163 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, 163 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:11:59,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:11:59,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-12-02 08:11:59,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-12-02 08:11:59,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 98 states have (on average 1.4387755102040816) internal successors, (141), 98 states have internal predecessors, (141), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 08:11:59,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 163 transitions. [2024-12-02 08:11:59,687 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 163 transitions. Word has length 108 [2024-12-02 08:11:59,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:11:59,687 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 163 transitions. [2024-12-02 08:11:59,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 08:11:59,688 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 163 transitions. [2024-12-02 08:11:59,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 08:11:59,691 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:59,692 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:59,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 08:11:59,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:11:59,892 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:59,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:59,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1156138350, now seen corresponding path program 1 times [2024-12-02 08:11:59,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:11:59,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537457684] [2024-12-02 08:11:59,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:59,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:11:59,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:11:59,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:11:59,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 08:12:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:00,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:12:00,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:12:00,250 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-12-02 08:12:00,250 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:12:00,250 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:12:00,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537457684] [2024-12-02 08:12:00,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537457684] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:00,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:00,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:12:00,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111336459] [2024-12-02 08:12:00,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:00,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:12:00,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:12:00,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:12:00,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:12:00,252 INFO L87 Difference]: Start difference. First operand 111 states and 163 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 08:12:00,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:00,329 INFO L93 Difference]: Finished difference Result 221 states and 326 transitions. [2024-12-02 08:12:00,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:12:00,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-12-02 08:12:00,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:00,330 INFO L225 Difference]: With dead ends: 221 [2024-12-02 08:12:00,330 INFO L226 Difference]: Without dead ends: 113 [2024-12-02 08:12:00,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:12:00,331 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:00,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 472 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:12:00,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-12-02 08:12:00,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-12-02 08:12:00,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 100 states have (on average 1.43) internal successors, (143), 100 states have internal predecessors, (143), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 08:12:00,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2024-12-02 08:12:00,339 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 108 [2024-12-02 08:12:00,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:00,339 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2024-12-02 08:12:00,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 08:12:00,340 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2024-12-02 08:12:00,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 08:12:00,341 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:00,341 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:00,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 08:12:00,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:12:00,541 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:00,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:00,542 INFO L85 PathProgramCache]: Analyzing trace with hash -805436308, now seen corresponding path program 1 times [2024-12-02 08:12:00,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:12:00,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402922028] [2024-12-02 08:12:00,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:00,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:12:00,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:12:00,544 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:12:00,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 08:12:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:00,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:12:00,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:12:00,954 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:12:00,954 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 208 treesize of output 64 [2024-12-02 08:12:00,972 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:12:00,972 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:12:00,972 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:12:00,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402922028] [2024-12-02 08:12:00,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [402922028] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:00,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:00,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:12:00,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26915240] [2024-12-02 08:12:00,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:00,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:12:00,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:12:00,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:12:00,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:12:00,974 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:12:00,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:00,995 INFO L93 Difference]: Finished difference Result 219 states and 320 transitions. [2024-12-02 08:12:00,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:12:00,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-12-02 08:12:00,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:00,998 INFO L225 Difference]: With dead ends: 219 [2024-12-02 08:12:00,998 INFO L226 Difference]: Without dead ends: 109 [2024-12-02 08:12:00,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:12:00,999 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 1 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:00,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 301 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:12:01,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-12-02 08:12:01,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-12-02 08:12:01,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 96 states have (on average 1.3958333333333333) internal successors, (134), 96 states have internal predecessors, (134), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 08:12:01,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2024-12-02 08:12:01,007 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 108 [2024-12-02 08:12:01,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:01,008 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2024-12-02 08:12:01,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:12:01,008 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2024-12-02 08:12:01,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 08:12:01,010 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:01,010 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:01,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 08:12:01,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:12:01,211 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:01,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:01,211 INFO L85 PathProgramCache]: Analyzing trace with hash -2085299986, now seen corresponding path program 1 times [2024-12-02 08:12:01,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:12:01,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192840888] [2024-12-02 08:12:01,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:01,212 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:12:01,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:12:01,214 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:12:01,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 08:12:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:01,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:12:01,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:12:01,536 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:12:01,536 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:12:01,536 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:12:01,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [192840888] [2024-12-02 08:12:01,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [192840888] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:01,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:01,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:12:01,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504410639] [2024-12-02 08:12:01,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:01,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:12:01,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:12:01,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:12:01,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:12:01,538 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:12:01,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:01,558 INFO L93 Difference]: Finished difference Result 209 states and 300 transitions. [2024-12-02 08:12:01,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:12:01,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-12-02 08:12:01,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:01,560 INFO L225 Difference]: With dead ends: 209 [2024-12-02 08:12:01,560 INFO L226 Difference]: Without dead ends: 103 [2024-12-02 08:12:01,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:12:01,562 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:01,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 279 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:12:01,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-12-02 08:12:01,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-12-02 08:12:01,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 90 states have (on average 1.3666666666666667) internal successors, (123), 90 states have internal predecessors, (123), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 08:12:01,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 145 transitions. [2024-12-02 08:12:01,570 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 145 transitions. Word has length 108 [2024-12-02 08:12:01,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:01,571 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 145 transitions. [2024-12-02 08:12:01,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:12:01,571 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 145 transitions. [2024-12-02 08:12:01,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 08:12:01,573 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:01,573 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:01,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-12-02 08:12:01,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:12:01,773 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:01,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:01,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1827134548, now seen corresponding path program 1 times [2024-12-02 08:12:01,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:12:01,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606078765] [2024-12-02 08:12:01,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:01,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:12:01,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:12:01,776 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:12:01,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-12-02 08:12:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:02,194 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 08:12:02,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:12:02,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 08:12:02,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2024-12-02 08:12:05,179 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:12:05,179 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 50 treesize of output 49 [2024-12-02 08:12:05,338 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:12:05,338 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:12:05,338 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:12:05,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [606078765] [2024-12-02 08:12:05,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [606078765] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:05,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:05,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:12:05,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287165008] [2024-12-02 08:12:05,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:05,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:12:05,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:12:05,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:12:05,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=27, Unknown=1, NotChecked=0, Total=42 [2024-12-02 08:12:05,339 INFO L87 Difference]: Start difference. First operand 103 states and 145 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:12:09,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:12,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:16,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.89s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:19,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.80s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:23,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:27,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.78s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:31,402 WARN L539 Checker$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] [2024-12-02 08:12:33,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:37,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.83s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:41,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:41,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:41,928 INFO L93 Difference]: Finished difference Result 313 states and 443 transitions. [2024-12-02 08:12:41,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:12:41,929 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-12-02 08:12:41,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:41,930 INFO L225 Difference]: With dead ends: 313 [2024-12-02 08:12:41,930 INFO L226 Difference]: Without dead ends: 213 [2024-12-02 08:12:41,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=26, Invalid=45, Unknown=1, NotChecked=0, Total=72 [2024-12-02 08:12:41,931 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 221 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 43 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:41,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 579 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 311 Invalid, 10 Unknown, 0 Unchecked, 36.5s Time] [2024-12-02 08:12:41,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-12-02 08:12:41,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 118. [2024-12-02 08:12:41,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 105 states have (on average 1.3523809523809525) internal successors, (142), 105 states have internal predecessors, (142), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 08:12:41,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 164 transitions. [2024-12-02 08:12:41,939 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 164 transitions. Word has length 108 [2024-12-02 08:12:41,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:41,939 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 164 transitions. [2024-12-02 08:12:41,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:12:41,939 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 164 transitions. [2024-12-02 08:12:41,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 08:12:41,941 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:41,941 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:41,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-12-02 08:12:42,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:12:42,142 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:42,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:42,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1115889186, now seen corresponding path program 1 times [2024-12-02 08:12:42,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:12:42,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005794209] [2024-12-02 08:12:42,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:42,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:12:42,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:12:42,144 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:12:42,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-12-02 08:12:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:42,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:12:42,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:12:42,436 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:12:42,436 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:12:42,436 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:12:42,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005794209] [2024-12-02 08:12:42,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005794209] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:42,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:42,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:12:42,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620366394] [2024-12-02 08:12:42,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:42,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:12:42,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:12:42,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:12:42,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:12:42,438 INFO L87 Difference]: Start difference. First operand 118 states and 164 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:12:42,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:42,473 INFO L93 Difference]: Finished difference Result 235 states and 328 transitions. [2024-12-02 08:12:42,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:12:42,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-12-02 08:12:42,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:42,474 INFO L225 Difference]: With dead ends: 235 [2024-12-02 08:12:42,474 INFO L226 Difference]: Without dead ends: 120 [2024-12-02 08:12:42,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:12:42,475 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:42,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 544 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:12:42,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-12-02 08:12:42,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-12-02 08:12:42,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 107 states have (on average 1.3457943925233644) internal successors, (144), 107 states have internal predecessors, (144), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 08:12:42,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 166 transitions. [2024-12-02 08:12:42,482 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 166 transitions. Word has length 110 [2024-12-02 08:12:42,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:42,483 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 166 transitions. [2024-12-02 08:12:42,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:12:42,483 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 166 transitions. [2024-12-02 08:12:42,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 08:12:42,484 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:42,484 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:42,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-12-02 08:12:42,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:12:42,685 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:42,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:42,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1936376764, now seen corresponding path program 1 times [2024-12-02 08:12:42,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:12:42,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883822742] [2024-12-02 08:12:42,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:42,686 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:12:42,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:12:42,687 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:12:42,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-12-02 08:12:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:43,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 08:12:43,040 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:12:43,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:12:43,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-12-02 08:12:43,096 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:12:43,096 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:12:43,096 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:12:43,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883822742] [2024-12-02 08:12:43,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [883822742] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:43,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:43,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:12:43,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831768087] [2024-12-02 08:12:43,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:43,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:12:43,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:12:43,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:12:43,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:12:43,099 INFO L87 Difference]: Start difference. First operand 120 states and 166 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:12:43,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:43,703 INFO L93 Difference]: Finished difference Result 235 states and 326 transitions. [2024-12-02 08:12:43,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:12:43,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-12-02 08:12:43,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:43,705 INFO L225 Difference]: With dead ends: 235 [2024-12-02 08:12:43,705 INFO L226 Difference]: Without dead ends: 118 [2024-12-02 08:12:43,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:12:43,705 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 113 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:43,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 263 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:12:43,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-12-02 08:12:43,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 103. [2024-12-02 08:12:43,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 90 states have (on average 1.3444444444444446) internal successors, (121), 90 states have internal predecessors, (121), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 08:12:43,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 143 transitions. [2024-12-02 08:12:43,710 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 143 transitions. Word has length 110 [2024-12-02 08:12:43,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:43,710 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 143 transitions. [2024-12-02 08:12:43,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:12:43,711 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 143 transitions. [2024-12-02 08:12:43,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 08:12:43,711 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:43,711 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:43,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-12-02 08:12:43,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:12:43,912 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:43,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:43,912 INFO L85 PathProgramCache]: Analyzing trace with hash -49787367, now seen corresponding path program 1 times [2024-12-02 08:12:43,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:12:43,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725795218] [2024-12-02 08:12:43,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:43,913 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:12:43,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:12:43,914 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:12:43,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-12-02 08:12:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:44,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 08:12:44,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:12:44,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:12:44,434 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 [2024-12-02 08:12:44,520 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:12:44,520 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 40 treesize of output 45 [2024-12-02 08:12:44,822 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:12:44,822 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 152 treesize of output 58 [2024-12-02 08:12:44,865 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:12:44,865 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:12:44,865 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:12:44,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725795218] [2024-12-02 08:12:44,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725795218] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:44,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:44,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:12:44,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269700161] [2024-12-02 08:12:44,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:44,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:12:44,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:12:44,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:12:44,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:12:44,867 INFO L87 Difference]: Start difference. First operand 103 states and 143 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:12:48,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:48,050 INFO L93 Difference]: Finished difference Result 306 states and 427 transitions. [2024-12-02 08:12:48,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:12:48,051 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-12-02 08:12:48,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:48,052 INFO L225 Difference]: With dead ends: 306 [2024-12-02 08:12:48,052 INFO L226 Difference]: Without dead ends: 206 [2024-12-02 08:12:48,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:12:48,053 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 195 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:48,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 719 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-12-02 08:12:48,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-12-02 08:12:48,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 119. [2024-12-02 08:12:48,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 106 states have (on average 1.3018867924528301) internal successors, (138), 106 states have internal predecessors, (138), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 08:12:48,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 160 transitions. [2024-12-02 08:12:48,067 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 160 transitions. Word has length 112 [2024-12-02 08:12:48,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:48,067 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 160 transitions. [2024-12-02 08:12:48,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:12:48,067 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 160 transitions. [2024-12-02 08:12:48,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 08:12:48,068 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:48,069 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:48,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-12-02 08:12:48,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:12:48,269 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:48,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:48,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1171277797, now seen corresponding path program 1 times [2024-12-02 08:12:48,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:12:48,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282017777] [2024-12-02 08:12:48,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:48,270 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:12:48,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:12:48,272 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:12:48,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-12-02 08:12:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:48,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 08:12:48,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:12:48,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 08:12:48,649 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 14 [2024-12-02 08:12:48,662 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 23 [2024-12-02 08:12:48,786 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:12:48,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 30 [2024-12-02 08:12:48,835 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:12:48,835 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:12:48,835 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:12:48,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282017777] [2024-12-02 08:12:48,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282017777] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:48,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:48,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:12:48,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143302520] [2024-12-02 08:12:48,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:48,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:12:48,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:12:48,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:12:48,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:12:48,836 INFO L87 Difference]: Start difference. First operand 119 states and 160 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:12:55,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:12:56,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:56,520 INFO L93 Difference]: Finished difference Result 254 states and 340 transitions. [2024-12-02 08:12:56,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:12:56,522 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 114 [2024-12-02 08:12:56,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:56,523 INFO L225 Difference]: With dead ends: 254 [2024-12-02 08:12:56,523 INFO L226 Difference]: Without dead ends: 252 [2024-12-02 08:12:56,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:12:56,524 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 123 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:56,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 971 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-12-02 08:12:56,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-12-02 08:12:56,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 168. [2024-12-02 08:12:56,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 155 states have (on average 1.2774193548387096) internal successors, (198), 155 states have internal predecessors, (198), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 08:12:56,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 220 transitions. [2024-12-02 08:12:56,537 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 220 transitions. Word has length 114 [2024-12-02 08:12:56,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:56,537 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 220 transitions. [2024-12-02 08:12:56,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:12:56,537 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 220 transitions. [2024-12-02 08:12:56,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 08:12:56,538 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:56,538 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:56,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-12-02 08:12:56,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:12:56,739 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:56,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:56,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1421844337, now seen corresponding path program 1 times [2024-12-02 08:12:56,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:12:56,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351833690] [2024-12-02 08:12:56,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:56,740 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:12:56,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:12:56,741 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:12:56,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-12-02 08:12:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:57,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-12-02 08:12:57,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:12:57,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 08:12:57,460 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 75 treesize of output 44 [2024-12-02 08:12:57,733 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 90 treesize of output 47 [2024-12-02 08:12:58,253 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:12:58,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 145 treesize of output 90 [2024-12-02 08:12:58,658 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:12:58,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 166 treesize of output 103 [2024-12-02 08:13:01,718 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:01,719 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 181 treesize of output 106 [2024-12-02 08:13:02,065 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:02,065 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 181 treesize of output 106 [2024-12-02 08:13:02,413 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:02,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 165 treesize of output 116 [2024-12-02 08:13:03,172 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:03,172 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 180 treesize of output 119 [2024-12-02 08:13:03,416 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:03,417 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 237 treesize of output 144 [2024-12-02 08:13:03,753 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:03,753 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 181 treesize of output 141 [2024-12-02 08:13:04,446 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:04,446 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 231 treesize of output 83 [2024-12-02 08:13:04,585 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 100 proven. 96 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 08:13:04,585 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:13:05,074 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:13:05,074 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:13:05,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351833690] [2024-12-02 08:13:05,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351833690] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:13:05,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:13:05,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [18] total 22 [2024-12-02 08:13:05,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263191647] [2024-12-02 08:13:05,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:05,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:13:05,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:13:05,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:13:05,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=385, Unknown=1, NotChecked=0, Total=462 [2024-12-02 08:13:05,076 INFO L87 Difference]: Start difference. First operand 168 states and 220 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:13:07,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:07,232 INFO L93 Difference]: Finished difference Result 351 states and 459 transitions. [2024-12-02 08:13:07,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:13:07,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 115 [2024-12-02 08:13:07,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:07,235 INFO L225 Difference]: With dead ends: 351 [2024-12-02 08:13:07,235 INFO L226 Difference]: Without dead ends: 186 [2024-12-02 08:13:07,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=81, Invalid=424, Unknown=1, NotChecked=0, Total=506 [2024-12-02 08:13:07,236 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 20 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:07,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 410 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 08:13:07,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-12-02 08:13:07,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 168. [2024-12-02 08:13:07,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 155 states have (on average 1.264516129032258) internal successors, (196), 155 states have internal predecessors, (196), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 08:13:07,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 218 transitions. [2024-12-02 08:13:07,245 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 218 transitions. Word has length 115 [2024-12-02 08:13:07,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:07,246 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 218 transitions. [2024-12-02 08:13:07,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:13:07,246 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 218 transitions. [2024-12-02 08:13:07,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 08:13:07,247 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:07,247 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:07,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-12-02 08:13:07,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:13:07,448 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:07,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:07,448 INFO L85 PathProgramCache]: Analyzing trace with hash -425514710, now seen corresponding path program 1 times [2024-12-02 08:13:07,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:13:07,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84790773] [2024-12-02 08:13:07,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:07,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:13:07,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:13:07,450 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:13:07,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-12-02 08:13:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:07,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-12-02 08:13:07,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:13:07,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:13:08,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 44 [2024-12-02 08:13:08,436 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 90 treesize of output 47 [2024-12-02 08:13:08,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:08,934 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 145 treesize of output 90 [2024-12-02 08:13:09,346 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:09,347 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 171 treesize of output 93 [2024-12-02 08:13:09,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:09,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 166 treesize of output 103 [2024-12-02 08:13:12,820 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:12,820 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 181 treesize of output 106 [2024-12-02 08:13:13,156 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:13,156 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 170 treesize of output 106 [2024-12-02 08:13:13,659 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:13,659 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 170 treesize of output 106 [2024-12-02 08:13:14,134 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:14,134 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 173 treesize of output 98 [2024-12-02 08:13:14,231 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:14,231 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 162 treesize of output 116 [2024-12-02 08:13:14,808 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:14,808 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 212 treesize of output 76 [2024-12-02 08:13:14,918 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 84 proven. 96 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 08:13:14,918 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:13:15,341 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:13:15,341 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:13:15,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84790773] [2024-12-02 08:13:15,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84790773] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:13:15,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:13:15,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-12-02 08:13:15,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173127424] [2024-12-02 08:13:15,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:15,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:13:15,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:13:15,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:13:15,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=351, Unknown=1, NotChecked=0, Total=420 [2024-12-02 08:13:15,343 INFO L87 Difference]: Start difference. First operand 168 states and 218 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:13:16,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:16,026 INFO L93 Difference]: Finished difference Result 351 states and 455 transitions. [2024-12-02 08:13:16,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:13:16,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 115 [2024-12-02 08:13:16,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:16,028 INFO L225 Difference]: With dead ends: 351 [2024-12-02 08:13:16,028 INFO L226 Difference]: Without dead ends: 186 [2024-12-02 08:13:16,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=73, Invalid=388, Unknown=1, NotChecked=0, Total=462 [2024-12-02 08:13:16,029 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 72 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:16,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 346 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:13:16,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-12-02 08:13:16,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 168. [2024-12-02 08:13:16,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 155 states have (on average 1.2516129032258065) internal successors, (194), 155 states have internal predecessors, (194), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 08:13:16,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 216 transitions. [2024-12-02 08:13:16,036 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 216 transitions. Word has length 115 [2024-12-02 08:13:16,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:16,037 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 216 transitions. [2024-12-02 08:13:16,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:13:16,037 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 216 transitions. [2024-12-02 08:13:16,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 08:13:16,038 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:16,038 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:16,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-12-02 08:13:16,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:13:16,239 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:16,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:16,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1808699005, now seen corresponding path program 1 times [2024-12-02 08:13:16,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:13:16,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708385201] [2024-12-02 08:13:16,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:16,240 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:13:16,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:13:16,241 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:13:16,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-12-02 08:13:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:16,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 08:13:16,653 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:13:16,754 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 [2024-12-02 08:13:17,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 77 [2024-12-02 08:13:18,235 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:18,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 162 treesize of output 89 [2024-12-02 08:13:18,888 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:18,889 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 245 treesize of output 83 [2024-12-02 08:13:18,994 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 28 proven. 96 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-12-02 08:13:18,995 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:13:19,870 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:13:19,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708385201] [2024-12-02 08:13:19,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [708385201] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:13:19,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1292532076] [2024-12-02 08:13:19,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:19,870 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:13:19,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:13:19,872 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:13:19,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-12-02 08:13:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:21,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 08:13:21,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:13:22,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 08:13:23,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 71 [2024-12-02 08:13:25,067 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:25,067 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 213 treesize of output 129 [2024-12-02 08:13:25,902 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:25,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 269 treesize of output 133 [2024-12-02 08:13:26,005 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 36 proven. 96 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-12-02 08:13:26,005 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:13:26,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1292532076] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:13:26,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:13:26,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 21 [2024-12-02 08:13:26,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369085120] [2024-12-02 08:13:26,409 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:13:26,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 08:13:26,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:13:26,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 08:13:26,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=634, Unknown=0, NotChecked=0, Total=756 [2024-12-02 08:13:26,410 INFO L87 Difference]: Start difference. First operand 168 states and 216 transitions. Second operand has 22 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 21 states have internal predecessors, (116), 7 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-12-02 08:13:30,828 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 [0] [2024-12-02 08:13:45,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:45,782 INFO L93 Difference]: Finished difference Result 607 states and 779 transitions. [2024-12-02 08:13:45,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:13:45,783 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 21 states have internal predecessors, (116), 7 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 116 [2024-12-02 08:13:45,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:45,785 INFO L225 Difference]: With dead ends: 607 [2024-12-02 08:13:45,785 INFO L226 Difference]: Without dead ends: 442 [2024-12-02 08:13:45,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 305 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=217, Invalid=973, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 08:13:45,786 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 532 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 114 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 1742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:45,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1051 Invalid, 1742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1615 Invalid, 13 Unknown, 0 Unchecked, 17.9s Time] [2024-12-02 08:13:45,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-12-02 08:13:45,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 436. [2024-12-02 08:13:45,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 399 states have (on average 1.2456140350877194) internal successors, (497), 401 states have internal predecessors, (497), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-12-02 08:13:45,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 561 transitions. [2024-12-02 08:13:45,808 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 561 transitions. Word has length 116 [2024-12-02 08:13:45,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:45,808 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 561 transitions. [2024-12-02 08:13:45,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 21 states have internal predecessors, (116), 7 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-12-02 08:13:45,809 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 561 transitions. [2024-12-02 08:13:45,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 08:13:45,809 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:45,810 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:45,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-12-02 08:13:46,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-12-02 08:13:46,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:13:46,210 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:46,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:46,211 INFO L85 PathProgramCache]: Analyzing trace with hash -219887105, now seen corresponding path program 1 times [2024-12-02 08:13:46,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:13:46,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289491643] [2024-12-02 08:13:46,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:46,211 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:13:46,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:13:46,213 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:13:46,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-12-02 08:13:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:46,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:13:46,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:13:46,489 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-12-02 08:13:46,489 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:13:46,489 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:13:46,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289491643] [2024-12-02 08:13:46,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289491643] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:46,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:46,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:13:46,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977192219] [2024-12-02 08:13:46,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:46,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:13:46,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:13:46,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:13:46,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:13:46,490 INFO L87 Difference]: Start difference. First operand 436 states and 561 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 08:13:46,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:46,556 INFO L93 Difference]: Finished difference Result 871 states and 1122 transitions. [2024-12-02 08:13:46,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:13:46,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 116 [2024-12-02 08:13:46,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:46,560 INFO L225 Difference]: With dead ends: 871 [2024-12-02 08:13:46,560 INFO L226 Difference]: Without dead ends: 438 [2024-12-02 08:13:46,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:13:46,561 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:46,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 409 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:13:46,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-12-02 08:13:46,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2024-12-02 08:13:46,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 401 states have (on average 1.2418952618453865) internal successors, (498), 403 states have internal predecessors, (498), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-12-02 08:13:46,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 562 transitions. [2024-12-02 08:13:46,597 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 562 transitions. Word has length 116 [2024-12-02 08:13:46,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:46,597 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 562 transitions. [2024-12-02 08:13:46,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 08:13:46,597 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 562 transitions. [2024-12-02 08:13:46,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 08:13:46,599 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:46,599 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:46,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-12-02 08:13:46,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:13:46,799 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:46,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:46,800 INFO L85 PathProgramCache]: Analyzing trace with hash 2010522939, now seen corresponding path program 1 times [2024-12-02 08:13:46,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:13:46,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330912882] [2024-12-02 08:13:46,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:46,800 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:13:46,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:13:46,802 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:13:46,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-12-02 08:13:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:47,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:13:47,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:13:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-12-02 08:13:47,104 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:13:47,104 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:13:47,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330912882] [2024-12-02 08:13:47,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330912882] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:47,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:47,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:13:47,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027401800] [2024-12-02 08:13:47,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:47,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:13:47,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:13:47,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:13:47,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:13:47,105 INFO L87 Difference]: Start difference. First operand 438 states and 562 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 08:13:47,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:47,181 INFO L93 Difference]: Finished difference Result 873 states and 1121 transitions. [2024-12-02 08:13:47,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:13:47,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 116 [2024-12-02 08:13:47,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:47,183 INFO L225 Difference]: With dead ends: 873 [2024-12-02 08:13:47,183 INFO L226 Difference]: Without dead ends: 438 [2024-12-02 08:13:47,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:13:47,184 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:47,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 409 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:13:47,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-12-02 08:13:47,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2024-12-02 08:13:47,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 401 states have (on average 1.2394014962593516) internal successors, (497), 403 states have internal predecessors, (497), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-12-02 08:13:47,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 561 transitions. [2024-12-02 08:13:47,205 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 561 transitions. Word has length 116 [2024-12-02 08:13:47,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:47,205 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 561 transitions. [2024-12-02 08:13:47,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 08:13:47,206 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 561 transitions. [2024-12-02 08:13:47,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 08:13:47,206 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:47,206 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:47,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-12-02 08:13:47,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:13:47,407 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:47,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:47,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1580443261, now seen corresponding path program 1 times [2024-12-02 08:13:47,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:13:47,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607819868] [2024-12-02 08:13:47,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:47,408 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:13:47,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:13:47,409 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:13:47,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-12-02 08:13:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:47,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 08:13:47,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:13:47,950 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 [2024-12-02 08:13:48,538 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:48,538 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 163 treesize of output 67 [2024-12-02 08:13:49,083 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:49,083 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 208 treesize of output 105 [2024-12-02 08:13:49,648 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:49,648 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 208 treesize of output 105 [2024-12-02 08:13:49,778 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:49,778 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 209 treesize of output 125 [2024-12-02 08:13:53,846 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:53,847 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 198 treesize of output 155 [2024-12-02 08:13:54,572 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:13:54,573 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 296 treesize of output 118 [2024-12-02 08:13:54,688 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 28 proven. 96 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-12-02 08:13:54,688 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:13:55,392 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:13:55,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1607819868] [2024-12-02 08:13:55,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1607819868] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:13:55,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1943031816] [2024-12-02 08:13:55,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:55,392 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:13:55,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:13:55,394 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:13:55,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-12-02 08:13:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:57,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 08:13:57,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:13:58,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 08:14:00,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 71 [2024-12-02 08:14:05,679 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:14:05,680 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 198 treesize of output 127 [2024-12-02 08:14:10,553 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:14:10,554 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 198 treesize of output 127 [2024-12-02 08:14:14,826 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:14:14,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 202 treesize of output 135 [2024-12-02 08:14:23,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:14:23,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 160 [2024-12-02 08:14:32,104 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:14:32,105 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 194 treesize of output 98 [2024-12-02 08:14:36,366 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 28 proven. 96 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-12-02 08:14:36,366 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:14:41,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1943031816] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:14:41,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:14:41,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 24 [2024-12-02 08:14:41,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919637115] [2024-12-02 08:14:41,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:14:41,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 08:14:41,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:14:41,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 08:14:41,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=869, Unknown=8, NotChecked=0, Total=1056 [2024-12-02 08:14:41,089 INFO L87 Difference]: Start difference. First operand 438 states and 561 transitions. Second operand has 25 states, 25 states have (on average 5.36) internal successors, (134), 24 states have internal predecessors, (134), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2024-12-02 08:14:43,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:14:47,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:14:57,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:15:01,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:15:14,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:15:18,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:15:30,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:15:34,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:15:38,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:15:42,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:15:46,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:15:50,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:15:54,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:15:58,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:16:02,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:16:06,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:16:10,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:16:14,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:16:18,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:16:22,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:16:27,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:16:31,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:16:35,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:16:39,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:16:43,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:16:47,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:16:51,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:16:55,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:16:59,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:03,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:07,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:11,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:15,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:19,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:23,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:27,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:31,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:35,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:48,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:52,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:56,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:00,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:05,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:09,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:13,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:17,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:21,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:25,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:30,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:34,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:38,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:42,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:46,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:50,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:00,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:19:00,940 INFO L93 Difference]: Finished difference Result 879 states and 1120 transitions. [2024-12-02 08:19:00,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 08:19:00,941 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.36) internal successors, (134), 24 states have internal predecessors, (134), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 117 [2024-12-02 08:19:00,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:19:00,943 INFO L225 Difference]: With dead ends: 879 [2024-12-02 08:19:00,943 INFO L226 Difference]: Without dead ends: 444 [2024-12-02 08:19:00,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 302 SyntacticMatches, 7 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 72.4s TimeCoverageRelationStatistics Valid=315, Invalid=1311, Unknown=14, NotChecked=0, Total=1640 [2024-12-02 08:19:00,944 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 714 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 1636 mSolverCounterSat, 174 mSolverCounterUnsat, 53 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 231.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1636 IncrementalHoareTripleChecker+Invalid, 53 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 232.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:19:00,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 1104 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1636 Invalid, 53 Unknown, 0 Unchecked, 232.8s Time] [2024-12-02 08:19:00,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-12-02 08:19:00,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 438. [2024-12-02 08:19:00,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 400 states have (on average 1.2325) internal successors, (493), 402 states have internal predecessors, (493), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-12-02 08:19:00,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 557 transitions. [2024-12-02 08:19:00,980 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 557 transitions. Word has length 117 [2024-12-02 08:19:00,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:19:00,981 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 557 transitions. [2024-12-02 08:19:00,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.36) internal successors, (134), 24 states have internal predecessors, (134), 6 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2024-12-02 08:19:00,981 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 557 transitions. [2024-12-02 08:19:00,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 08:19:00,982 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:19:00,982 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:19:00,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2024-12-02 08:19:01,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-12-02 08:19:01,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:19:01,383 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:19:01,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:19:01,384 INFO L85 PathProgramCache]: Analyzing trace with hash -2030346274, now seen corresponding path program 1 times [2024-12-02 08:19:01,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:19:01,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594028154] [2024-12-02 08:19:01,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:19:01,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:19:01,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:19:01,387 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:19:01,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-12-02 08:19:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:19:02,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 08:19:02,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:19:02,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 1 [2024-12-02 08:19:02,591 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:19:02,592 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 133 treesize of output 79 [2024-12-02 08:19:06,989 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:19:06,990 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 153 treesize of output 105 [2024-12-02 08:19:15,578 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:19:15,578 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 172 treesize of output 111 [2024-12-02 08:19:16,282 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:19:16,283 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 172 treesize of output 111 [2024-12-02 08:19:16,915 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:19:16,915 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 281 treesize of output 167 [2024-12-02 08:19:17,446 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:19:17,447 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 300 treesize of output 191 [2024-12-02 08:19:19,488 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:19:19,489 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 449 treesize of output 151 [2024-12-02 08:19:20,201 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 28 proven. 120 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-02 08:19:20,201 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:19:22,710 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:19:22,710 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:19:22,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594028154] [2024-12-02 08:19:22,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [594028154] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:19:22,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:19:22,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [17] total 23 [2024-12-02 08:19:22,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033639041] [2024-12-02 08:19:22,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:19:22,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:19:22,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:19:22,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:19:22,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=431, Unknown=3, NotChecked=0, Total=506 [2024-12-02 08:19:22,713 INFO L87 Difference]: Start difference. First operand 438 states and 557 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:19:25,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:19:26,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:19:36,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:19:36,837 INFO L93 Difference]: Finished difference Result 1126 states and 1432 transitions. [2024-12-02 08:19:36,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:19:36,840 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 118 [2024-12-02 08:19:36,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:19:36,843 INFO L225 Difference]: With dead ends: 1126 [2024-12-02 08:19:36,843 INFO L226 Difference]: Without dead ends: 691 [2024-12-02 08:19:36,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 212 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=95, Invalid=658, Unknown=3, NotChecked=0, Total=756 [2024-12-02 08:19:36,845 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 66 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:19:36,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1102 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2024-12-02 08:19:36,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-12-02 08:19:36,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 686. [2024-12-02 08:19:36,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 627 states have (on average 1.226475279106858) internal successors, (769), 632 states have internal predecessors, (769), 50 states have call successors, (50), 8 states have call predecessors, (50), 8 states have return successors, (50), 45 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 08:19:36,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 869 transitions. [2024-12-02 08:19:36,934 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 869 transitions. Word has length 118 [2024-12-02 08:19:36,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:19:36,935 INFO L471 AbstractCegarLoop]: Abstraction has 686 states and 869 transitions. [2024-12-02 08:19:36,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:19:36,935 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 869 transitions. [2024-12-02 08:19:36,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 08:19:36,937 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:19:36,937 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:19:36,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-12-02 08:19:37,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:19:37,138 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:19:37,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:19:37,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1395072701, now seen corresponding path program 1 times [2024-12-02 08:19:37,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:19:37,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575569879] [2024-12-02 08:19:37,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:19:37,138 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:19:37,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:19:37,140 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:19:37,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-12-02 08:19:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:19:37,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 08:19:37,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:19:37,764 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 [2024-12-02 08:19:38,563 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:19:38,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 67 [2024-12-02 08:19:40,023 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:19:40,023 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 262 treesize of output 123 [2024-12-02 08:19:41,227 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:19:41,227 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 253 treesize of output 132 [2024-12-02 08:19:41,528 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:19:41,528 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 188 treesize of output 131 [2024-12-02 08:19:45,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:19:45,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 192 treesize of output 143 [2024-12-02 08:19:47,022 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:19:47,022 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 292 treesize of output 108 [2024-12-02 08:19:47,194 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 102 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-12-02 08:19:47,194 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:19:47,748 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:19:47,748 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:19:47,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575569879] [2024-12-02 08:19:47,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575569879] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:19:47,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:19:47,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 23 [2024-12-02 08:19:47,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89828517] [2024-12-02 08:19:47,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:19:47,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:19:47,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:19:47,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:19:47,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=424, Unknown=1, NotChecked=0, Total=506 [2024-12-02 08:19:47,750 INFO L87 Difference]: Start difference. First operand 686 states and 869 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:19:51,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:19:51,160 INFO L93 Difference]: Finished difference Result 1530 states and 1959 transitions. [2024-12-02 08:19:51,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:19:51,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 118 [2024-12-02 08:19:51,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:19:51,164 INFO L225 Difference]: With dead ends: 1530 [2024-12-02 08:19:51,164 INFO L226 Difference]: Without dead ends: 847 [2024-12-02 08:19:51,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 211 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=86, Invalid=465, Unknown=1, NotChecked=0, Total=552 [2024-12-02 08:19:51,166 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 77 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:19:51,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 525 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 08:19:51,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-12-02 08:19:51,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 620. [2024-12-02 08:19:51,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 561 states have (on average 1.2281639928698753) internal successors, (689), 566 states have internal predecessors, (689), 50 states have call successors, (50), 8 states have call predecessors, (50), 8 states have return successors, (50), 45 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 08:19:51,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 789 transitions. [2024-12-02 08:19:51,225 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 789 transitions. Word has length 118 [2024-12-02 08:19:51,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:19:51,225 INFO L471 AbstractCegarLoop]: Abstraction has 620 states and 789 transitions. [2024-12-02 08:19:51,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:19:51,226 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 789 transitions. [2024-12-02 08:19:51,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 08:19:51,227 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:19:51,227 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:19:51,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 08:19:51,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:19:51,427 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:19:51,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:19:51,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1047768183, now seen corresponding path program 1 times [2024-12-02 08:19:51,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:19:51,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878155228] [2024-12-02 08:19:51,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:19:51,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:19:51,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:19:51,430 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:19:51,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-12-02 08:19:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:19:51,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 08:19:51,898 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:19:52,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:19:52,523 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:19:52,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 69 [2024-12-02 08:19:57,579 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:19:57,579 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 247 treesize of output 129 [2024-12-02 08:19:58,598 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:19:58,598 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 333 treesize of output 167 [2024-12-02 08:19:58,929 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:19:58,929 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 319 treesize of output 190 [2024-12-02 08:20:03,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:20:03,349 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 338 treesize of output 214 [2024-12-02 08:20:04,426 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:20:04,426 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 436 treesize of output 168 [2024-12-02 08:20:04,638 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 102 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-12-02 08:20:04,638 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:20:05,201 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:20:05,201 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:20:05,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878155228] [2024-12-02 08:20:05,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878155228] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:20:05,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:20:05,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [20] total 24 [2024-12-02 08:20:05,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321042185] [2024-12-02 08:20:05,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:20:05,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:20:05,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:20:05,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:20:05,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=465, Unknown=2, NotChecked=0, Total=552 [2024-12-02 08:20:05,203 INFO L87 Difference]: Start difference. First operand 620 states and 789 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:20:06,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:20:06,865 INFO L93 Difference]: Finished difference Result 1303 states and 1658 transitions. [2024-12-02 08:20:06,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:20:06,867 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 119 [2024-12-02 08:20:06,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:20:06,868 INFO L225 Difference]: With dead ends: 1303 [2024-12-02 08:20:06,868 INFO L226 Difference]: Without dead ends: 686 [2024-12-02 08:20:06,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=90, Invalid=508, Unknown=2, NotChecked=0, Total=600 [2024-12-02 08:20:06,869 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 73 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:20:06,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 340 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 08:20:06,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-12-02 08:20:06,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 305. [2024-12-02 08:20:06,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 274 states have (on average 1.2080291970802919) internal successors, (331), 276 states have internal predecessors, (331), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 08:20:06,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 379 transitions. [2024-12-02 08:20:06,899 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 379 transitions. Word has length 119 [2024-12-02 08:20:06,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:20:06,899 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 379 transitions. [2024-12-02 08:20:06,900 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:20:06,900 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 379 transitions. [2024-12-02 08:20:06,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 08:20:06,900 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:20:06,900 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:20:06,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-12-02 08:20:07,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:20:07,101 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:20:07,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:20:07,101 INFO L85 PathProgramCache]: Analyzing trace with hash 955825444, now seen corresponding path program 1 times [2024-12-02 08:20:07,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:20:07,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682787707] [2024-12-02 08:20:07,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:20:07,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:20:07,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:20:07,104 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:20:07,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-12-02 08:20:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:20:07,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-02 08:20:07,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:20:07,855 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 25 treesize of output 10 [2024-12-02 08:20:08,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 83 [2024-12-02 08:20:09,370 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:20:09,371 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 285 treesize of output 129 [2024-12-02 08:20:09,862 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:20:09,863 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 269 treesize of output 139 [2024-12-02 08:20:10,720 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:20:10,720 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 224 treesize of output 154 [2024-12-02 08:20:11,691 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:20:11,691 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 299 treesize of output 176 [2024-12-02 08:20:12,211 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:20:12,211 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 303 treesize of output 203 [2024-12-02 08:20:14,331 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 40 proven. 112 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-12-02 08:20:14,331 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:20:17,310 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:20:17,311 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:20:17,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682787707] [2024-12-02 08:20:17,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682787707] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:20:17,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:20:17,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 24 [2024-12-02 08:20:17,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820525049] [2024-12-02 08:20:17,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:20:17,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:20:17,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:20:17,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:20:17,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:20:17,312 INFO L87 Difference]: Start difference. First operand 305 states and 379 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:20:30,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:20:30,631 INFO L93 Difference]: Finished difference Result 707 states and 880 transitions. [2024-12-02 08:20:30,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:20:30,634 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 120 [2024-12-02 08:20:30,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:20:30,635 INFO L225 Difference]: With dead ends: 707 [2024-12-02 08:20:30,635 INFO L226 Difference]: Without dead ends: 405 [2024-12-02 08:20:30,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 214 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=125, Invalid=577, Unknown=0, NotChecked=0, Total=702 [2024-12-02 08:20:30,636 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 164 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:20:30,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 592 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2024-12-02 08:20:30,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-12-02 08:20:30,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 339. [2024-12-02 08:20:30,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 308 states have (on average 1.198051948051948) internal successors, (369), 310 states have internal predecessors, (369), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 08:20:30,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 417 transitions. [2024-12-02 08:20:30,663 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 417 transitions. Word has length 120 [2024-12-02 08:20:30,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:20:30,663 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 417 transitions. [2024-12-02 08:20:30,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:20:30,663 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 417 transitions. [2024-12-02 08:20:30,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 08:20:30,664 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:20:30,664 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:20:30,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 08:20:30,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:20:30,864 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:20:30,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:20:30,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1213990882, now seen corresponding path program 1 times [2024-12-02 08:20:30,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:20:30,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434200250] [2024-12-02 08:20:30,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:20:30,865 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:20:30,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:20:30,866 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:20:30,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-12-02 08:20:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:20:31,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:20:31,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:20:31,334 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:20:31,334 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 203 treesize of output 59 [2024-12-02 08:20:31,419 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:20:31,419 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:20:31,419 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:20:31,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434200250] [2024-12-02 08:20:31,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434200250] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:20:31,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:20:31,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:20:31,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731710541] [2024-12-02 08:20:31,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:20:31,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:20:31,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:20:31,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:20:31,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:20:31,420 INFO L87 Difference]: Start difference. First operand 339 states and 417 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:20:38,592 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] [2024-12-02 08:20:40,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:20:40,001 INFO L93 Difference]: Finished difference Result 805 states and 1004 transitions. [2024-12-02 08:20:40,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:20:40,003 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 120 [2024-12-02 08:20:40,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:20:40,005 INFO L225 Difference]: With dead ends: 805 [2024-12-02 08:20:40,005 INFO L226 Difference]: Without dead ends: 469 [2024-12-02 08:20:40,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:20:40,006 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 67 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:20:40,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 532 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 231 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2024-12-02 08:20:40,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-12-02 08:20:40,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 347. [2024-12-02 08:20:40,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 316 states have (on average 1.2056962025316456) internal successors, (381), 318 states have internal predecessors, (381), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 08:20:40,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 429 transitions. [2024-12-02 08:20:40,056 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 429 transitions. Word has length 120 [2024-12-02 08:20:40,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:20:40,056 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 429 transitions. [2024-12-02 08:20:40,056 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:20:40,056 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 429 transitions. [2024-12-02 08:20:40,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 08:20:40,057 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:20:40,057 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:20:40,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-12-02 08:20:40,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:20:40,258 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:20:40,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:20:40,258 INFO L85 PathProgramCache]: Analyzing trace with hash 820963872, now seen corresponding path program 1 times [2024-12-02 08:20:40,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:20:40,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431073281] [2024-12-02 08:20:40,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:20:40,259 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:20:40,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:20:40,260 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:20:40,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-12-02 08:20:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:20:40,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 08:20:40,879 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:20:41,038 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 25 treesize of output 10 [2024-12-02 08:20:41,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 73 [2024-12-02 08:20:42,591 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:20:42,591 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 259 treesize of output 135 [2024-12-02 08:20:43,456 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:20:43,456 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 244 treesize of output 144 [2024-12-02 08:20:44,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:20:44,260 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 247 treesize of output 148 [2024-12-02 08:20:48,919 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:20:48,919 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 266 treesize of output 172 [2024-12-02 08:20:50,503 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:20:50,503 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 319 treesize of output 135 [2024-12-02 08:20:50,837 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 36 proven. 96 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-12-02 08:20:50,837 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:20:52,258 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:20:52,258 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:20:52,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431073281] [2024-12-02 08:20:52,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431073281] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:20:52,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:20:52,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 20 [2024-12-02 08:20:52,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542462462] [2024-12-02 08:20:52,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:20:52,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:20:52,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:20:52,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:20:52,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=315, Unknown=1, NotChecked=0, Total=380 [2024-12-02 08:20:52,259 INFO L87 Difference]: Start difference. First operand 347 states and 429 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:20:55,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:20:55,988 INFO L93 Difference]: Finished difference Result 841 states and 1046 transitions. [2024-12-02 08:20:55,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:20:55,991 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 120 [2024-12-02 08:20:55,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:20:55,992 INFO L225 Difference]: With dead ends: 841 [2024-12-02 08:20:55,992 INFO L226 Difference]: Without dead ends: 497 [2024-12-02 08:20:55,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=69, Invalid=350, Unknown=1, NotChecked=0, Total=420 [2024-12-02 08:20:55,994 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 76 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:20:55,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 405 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 08:20:55,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-12-02 08:20:56,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 381. [2024-12-02 08:20:56,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 350 states have (on average 1.1857142857142857) internal successors, (415), 352 states have internal predecessors, (415), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 08:20:56,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 463 transitions. [2024-12-02 08:20:56,052 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 463 transitions. Word has length 120 [2024-12-02 08:20:56,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:20:56,053 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 463 transitions. [2024-12-02 08:20:56,053 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:20:56,053 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 463 transitions. [2024-12-02 08:20:56,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 08:20:56,054 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:20:56,054 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:20:56,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-12-02 08:20:56,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:20:56,255 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:20:56,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:20:56,256 INFO L85 PathProgramCache]: Analyzing trace with hash 890254788, now seen corresponding path program 1 times [2024-12-02 08:20:56,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:20:56,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177455753] [2024-12-02 08:20:56,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:20:56,256 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:20:56,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:20:56,259 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:20:56,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-12-02 08:20:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:20:57,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 08:20:57,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:20:57,295 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 25 treesize of output 10 [2024-12-02 08:20:58,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 73 [2024-12-02 08:20:59,497 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:20:59,497 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 245 treesize of output 131 [2024-12-02 08:21:00,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:21:00,121 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 229 treesize of output 141 [2024-12-02 08:21:01,339 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:21:01,339 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 214 treesize of output 150 [2024-12-02 08:21:03,137 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:21:03,138 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 284 treesize of output 167 [2024-12-02 08:21:08,118 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:21:08,119 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 303 treesize of output 191 [2024-12-02 08:21:11,155 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:21:11,155 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 437 treesize of output 163 [2024-12-02 08:21:11,682 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 40 proven. 112 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-12-02 08:21:11,682 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:21:15,241 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:21:15,241 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:21:15,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177455753] [2024-12-02 08:21:15,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177455753] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:21:15,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:21:15,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 24 [2024-12-02 08:21:15,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064539837] [2024-12-02 08:21:15,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:21:15,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:21:15,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:21:15,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:21:15,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=462, Unknown=1, NotChecked=0, Total=552 [2024-12-02 08:21:15,243 INFO L87 Difference]: Start difference. First operand 381 states and 463 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:21:16,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:21:25,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:21:29,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:21:29,030 INFO L93 Difference]: Finished difference Result 817 states and 1000 transitions. [2024-12-02 08:21:29,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:21:29,033 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 120 [2024-12-02 08:21:29,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:21:29,035 INFO L225 Difference]: With dead ends: 817 [2024-12-02 08:21:29,035 INFO L226 Difference]: Without dead ends: 439 [2024-12-02 08:21:29,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 215 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=116, Invalid=585, Unknown=1, NotChecked=0, Total=702 [2024-12-02 08:21:29,038 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 62 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:21:29,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 583 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2024-12-02 08:21:29,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-12-02 08:21:29,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 383. [2024-12-02 08:21:29,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 352 states have (on average 1.1846590909090908) internal successors, (417), 354 states have internal predecessors, (417), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 08:21:29,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 465 transitions. [2024-12-02 08:21:29,100 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 465 transitions. Word has length 120 [2024-12-02 08:21:29,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:21:29,100 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 465 transitions. [2024-12-02 08:21:29,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:21:29,101 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 465 transitions. [2024-12-02 08:21:29,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 08:21:29,102 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:21:29,103 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:21:29,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 08:21:29,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:21:29,303 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:21:29,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:21:29,304 INFO L85 PathProgramCache]: Analyzing trace with hash 446352354, now seen corresponding path program 1 times [2024-12-02 08:21:29,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:21:29,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [200507184] [2024-12-02 08:21:29,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:21:29,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:21:29,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:21:29,307 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:21:29,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-12-02 08:21:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:21:30,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 08:21:30,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:21:30,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 10 [2024-12-02 08:21:31,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 73 [2024-12-02 08:21:32,915 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:21:32,916 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 234 treesize of output 131 [2024-12-02 08:21:33,934 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:21:33,934 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 234 treesize of output 131 [2024-12-02 08:21:35,426 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:21:35,427 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 294 treesize of output 141 [2024-12-02 08:21:44,316 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:21:44,316 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 298 treesize of output 162 [2024-12-02 08:21:46,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:21:46,245 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 336 treesize of output 146 [2024-12-02 08:21:46,666 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 28 proven. 96 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-12-02 08:21:46,666 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:21:48,913 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:21:48,913 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:21:48,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [200507184] [2024-12-02 08:21:48,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [200507184] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:21:48,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:21:48,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 21 [2024-12-02 08:21:48,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20589215] [2024-12-02 08:21:48,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:21:48,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:21:48,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:21:48,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:21:48,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=348, Unknown=2, NotChecked=0, Total=420 [2024-12-02 08:21:48,916 INFO L87 Difference]: Start difference. First operand 383 states and 465 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:21:52,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:21:53,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:21:58,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:21:58,461 INFO L93 Difference]: Finished difference Result 869 states and 1060 transitions. [2024-12-02 08:21:58,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:21:58,466 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 120 [2024-12-02 08:21:58,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:21:58,468 INFO L225 Difference]: With dead ends: 869 [2024-12-02 08:21:58,468 INFO L226 Difference]: Without dead ends: 489 [2024-12-02 08:21:58,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 217 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=76, Invalid=384, Unknown=2, NotChecked=0, Total=462 [2024-12-02 08:21:58,470 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 73 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:21:58,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 597 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2024-12-02 08:21:58,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-12-02 08:21:58,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 377. [2024-12-02 08:21:58,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 346 states have (on average 1.1589595375722543) internal successors, (401), 348 states have internal predecessors, (401), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 08:21:58,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 449 transitions. [2024-12-02 08:21:58,530 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 449 transitions. Word has length 120 [2024-12-02 08:21:58,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:21:58,530 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 449 transitions. [2024-12-02 08:21:58,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:21:58,530 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 449 transitions. [2024-12-02 08:21:58,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 08:21:58,532 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:21:58,532 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:21:58,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-12-02 08:21:58,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:21:58,732 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:21:58,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:21:58,733 INFO L85 PathProgramCache]: Analyzing trace with hash 311490782, now seen corresponding path program 1 times [2024-12-02 08:21:58,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:21:58,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897401598] [2024-12-02 08:21:58,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:21:58,734 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:21:58,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:21:58,736 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:21:58,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-12-02 08:21:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:21:59,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-12-02 08:21:59,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:21:59,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 1 [2024-12-02 08:22:00,664 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:00,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 69 [2024-12-02 08:22:05,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 82 [2024-12-02 08:22:06,977 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:06,978 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 264 treesize of output 134 [2024-12-02 08:22:08,017 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:08,018 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 264 treesize of output 134 [2024-12-02 08:22:09,412 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:09,412 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 262 treesize of output 121 [2024-12-02 08:22:09,941 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:09,942 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 251 treesize of output 139 [2024-12-02 08:22:11,829 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:11,830 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 349 treesize of output 111 [2024-12-02 08:22:12,190 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 52 proven. 96 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-02 08:22:12,190 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:22:14,521 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:22:14,522 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:22:14,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897401598] [2024-12-02 08:22:14,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897401598] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:22:14,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:22:14,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 23 [2024-12-02 08:22:14,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174441854] [2024-12-02 08:22:14,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:14,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:22:14,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:22:14,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:22:14,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=428, Unknown=1, NotChecked=0, Total=506 [2024-12-02 08:22:14,524 INFO L87 Difference]: Start difference. First operand 377 states and 449 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:22:20,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:22:22,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:22,921 INFO L93 Difference]: Finished difference Result 801 states and 958 transitions. [2024-12-02 08:22:22,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:22:22,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 120 [2024-12-02 08:22:22,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:22,926 INFO L225 Difference]: With dead ends: 801 [2024-12-02 08:22:22,926 INFO L226 Difference]: Without dead ends: 427 [2024-12-02 08:22:22,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 215 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=103, Invalid=546, Unknown=1, NotChecked=0, Total=650 [2024-12-02 08:22:22,927 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 105 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:22,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 504 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-12-02 08:22:22,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-12-02 08:22:22,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 373. [2024-12-02 08:22:22,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 342 states have (on average 1.154970760233918) internal successors, (395), 344 states have internal predecessors, (395), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 08:22:22,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 443 transitions. [2024-12-02 08:22:22,961 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 443 transitions. Word has length 120 [2024-12-02 08:22:22,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:22,962 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 443 transitions. [2024-12-02 08:22:22,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:22:22,962 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 443 transitions. [2024-12-02 08:22:22,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 08:22:22,963 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:22,963 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:22,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-12-02 08:22:23,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:22:23,164 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:23,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:23,164 INFO L85 PathProgramCache]: Analyzing trace with hash -12245312, now seen corresponding path program 1 times [2024-12-02 08:22:23,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:22:23,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661588109] [2024-12-02 08:22:23,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:23,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:22:23,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:22:23,168 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:22:23,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-12-02 08:22:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:23,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:22:23,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:22:23,831 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:23,831 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 203 treesize of output 59 [2024-12-02 08:22:23,985 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:22:23,985 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:22:23,985 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:22:23,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661588109] [2024-12-02 08:22:23,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661588109] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:23,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:23,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:22:23,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434124246] [2024-12-02 08:22:23,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:23,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:22:23,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:22:23,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:22:23,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:22:23,987 INFO L87 Difference]: Start difference. First operand 373 states and 443 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:22:25,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:22:26,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:22:32,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:32,101 INFO L93 Difference]: Finished difference Result 847 states and 1018 transitions. [2024-12-02 08:22:32,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:22:32,105 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 120 [2024-12-02 08:22:32,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:32,107 INFO L225 Difference]: With dead ends: 847 [2024-12-02 08:22:32,107 INFO L226 Difference]: Without dead ends: 477 [2024-12-02 08:22:32,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:22:32,108 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 84 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:32,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 564 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-12-02 08:22:32,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-12-02 08:22:32,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 373. [2024-12-02 08:22:32,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 342 states have (on average 1.1491228070175439) internal successors, (393), 344 states have internal predecessors, (393), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 08:22:32,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 441 transitions. [2024-12-02 08:22:32,146 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 441 transitions. Word has length 120 [2024-12-02 08:22:32,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:32,146 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 441 transitions. [2024-12-02 08:22:32,146 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:22:32,146 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 441 transitions. [2024-12-02 08:22:32,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 08:22:32,148 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:32,148 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:32,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2024-12-02 08:22:32,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:22:32,349 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:32,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:32,350 INFO L85 PathProgramCache]: Analyzing trace with hash 49794302, now seen corresponding path program 1 times [2024-12-02 08:22:32,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:22:32,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [538383753] [2024-12-02 08:22:32,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:32,351 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:22:32,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:22:32,354 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:22:32,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-12-02 08:22:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:33,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-12-02 08:22:33,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:22:33,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 1 [2024-12-02 08:22:34,198 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:34,198 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 143 treesize of output 59 [2024-12-02 08:22:34,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 59 [2024-12-02 08:22:35,744 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:35,745 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 244 treesize of output 117 [2024-12-02 08:22:36,472 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:36,473 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 244 treesize of output 117 [2024-12-02 08:22:37,422 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:37,423 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 238 treesize of output 115 [2024-12-02 08:22:41,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:41,936 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 242 treesize of output 136 [2024-12-02 08:22:43,609 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:43,609 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 340 treesize of output 108 [2024-12-02 08:22:43,921 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 96 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-12-02 08:22:43,921 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:22:46,118 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:22:46,118 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:22:46,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [538383753] [2024-12-02 08:22:46,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [538383753] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:22:46,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:22:46,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 23 [2024-12-02 08:22:46,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481882216] [2024-12-02 08:22:46,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:46,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:22:46,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:22:46,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:22:46,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=424, Unknown=1, NotChecked=0, Total=506 [2024-12-02 08:22:46,121 INFO L87 Difference]: Start difference. First operand 373 states and 441 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:22:47,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:22:54,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:54,854 INFO L93 Difference]: Finished difference Result 787 states and 936 transitions. [2024-12-02 08:22:54,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:22:54,859 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 120 [2024-12-02 08:22:54,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:54,861 INFO L225 Difference]: With dead ends: 787 [2024-12-02 08:22:54,861 INFO L226 Difference]: Without dead ends: 417 [2024-12-02 08:22:54,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=108, Invalid=541, Unknown=1, NotChecked=0, Total=650 [2024-12-02 08:22:54,862 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 107 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:54,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 621 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-12-02 08:22:54,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-12-02 08:22:54,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 363. [2024-12-02 08:22:54,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 332 states have (on average 1.141566265060241) internal successors, (379), 334 states have internal predecessors, (379), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 08:22:54,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 427 transitions. [2024-12-02 08:22:54,921 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 427 transitions. Word has length 120 [2024-12-02 08:22:54,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:54,921 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 427 transitions. [2024-12-02 08:22:54,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:22:54,921 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 427 transitions. [2024-12-02 08:22:54,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 08:22:54,923 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:54,923 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:54,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-12-02 08:22:55,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:22:55,124 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:55,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:55,124 INFO L85 PathProgramCache]: Analyzing trace with hash 2145593439, now seen corresponding path program 1 times [2024-12-02 08:22:55,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:22:55,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080402869] [2024-12-02 08:22:55,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:55,125 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:22:55,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:22:55,128 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:22:55,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-12-02 08:22:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:55,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 08:22:55,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:22:55,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 08:22:55,809 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 21 treesize of output 21 [2024-12-02 08:22:55,844 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:55,845 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 24 [2024-12-02 08:22:55,873 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:55,873 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 33 [2024-12-02 08:22:56,138 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:56,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 83 treesize of output 37 [2024-12-02 08:22:56,290 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:22:56,291 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:22:56,291 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:22:56,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080402869] [2024-12-02 08:22:56,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080402869] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:56,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:56,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 08:22:56,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656594642] [2024-12-02 08:22:56,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:56,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:22:56,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:22:56,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:22:56,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:22:56,293 INFO L87 Difference]: Start difference. First operand 363 states and 427 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:22:57,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:22:58,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:23:01,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:23:01,711 INFO L93 Difference]: Finished difference Result 482 states and 583 transitions. [2024-12-02 08:23:01,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:23:01,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 121 [2024-12-02 08:23:01,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:23:01,714 INFO L225 Difference]: With dead ends: 482 [2024-12-02 08:23:01,714 INFO L226 Difference]: Without dead ends: 480 [2024-12-02 08:23:01,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:23:01,715 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 96 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:23:01,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 1316 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-12-02 08:23:01,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-12-02 08:23:01,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 470. [2024-12-02 08:23:01,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 418 states have (on average 1.1698564593301435) internal successors, (489), 423 states have internal predecessors, (489), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 36 states have call predecessors, (41), 41 states have call successors, (41) [2024-12-02 08:23:01,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 571 transitions. [2024-12-02 08:23:01,786 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 571 transitions. Word has length 121 [2024-12-02 08:23:01,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:23:01,787 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 571 transitions. [2024-12-02 08:23:01,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:23:01,787 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 571 transitions. [2024-12-02 08:23:01,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 08:23:01,788 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:23:01,788 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:23:01,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-12-02 08:23:01,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:23:01,989 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:23:01,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:23:01,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1255165558, now seen corresponding path program 1 times [2024-12-02 08:23:01,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:23:01,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1039677427] [2024-12-02 08:23:01,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:23:01,990 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:23:01,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:23:01,992 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:23:01,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-12-02 08:23:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:23:02,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 08:23:02,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:23:03,042 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 [2024-12-02 08:23:03,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:03,824 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 158 treesize of output 77 [2024-12-02 08:23:08,387 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:08,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-12-02 08:23:09,489 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:09,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 53 [2024-12-02 08:23:10,258 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:10,258 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 118 treesize of output 94 [2024-12-02 08:23:10,897 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:10,898 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 80 treesize of output 97 [2024-12-02 08:23:13,021 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:13,022 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 178 treesize of output 60 [2024-12-02 08:23:13,971 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 112 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-12-02 08:23:13,971 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:23:16,475 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:23:16,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1039677427] [2024-12-02 08:23:16,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1039677427] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:23:16,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2009661703] [2024-12-02 08:23:16,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:23:16,476 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:23:16,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:23:16,478 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:23:16,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2024-12-02 08:23:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:23:24,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-12-02 08:23:24,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:23:25,210 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 19 treesize of output 8 [2024-12-02 08:23:28,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 75 [2024-12-02 08:23:37,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 121 [2024-12-02 08:23:57,168 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:57,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 268 treesize of output 187 [2024-12-02 08:24:03,166 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:24:03,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 268 treesize of output 187 [2024-12-02 08:24:32,633 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:24:32,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 351 treesize of output 213 [2024-12-02 08:24:37,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:24:37,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 252 treesize of output 203 [2024-12-02 08:24:55,681 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:24:55,682 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 356 treesize of output 184 [2024-12-02 08:24:58,220 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 52 proven. 96 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-02 08:24:58,221 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:25:03,386 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:25:03,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2009661703] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:25:03,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:25:03,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18, 28] total 51 [2024-12-02 08:25:03,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349055643] [2024-12-02 08:25:03,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:25:03,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:25:03,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:25:03,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:25:03,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=2694, Unknown=14, NotChecked=0, Total=2970 [2024-12-02 08:25:03,389 INFO L87 Difference]: Start difference. First operand 470 states and 571 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:25:04,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:25:05,856 WARN L539 Checker$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 [] [2024-12-02 08:25:08,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:25:32,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:25:33,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:25:33,792 INFO L93 Difference]: Finished difference Result 1098 states and 1337 transitions. [2024-12-02 08:25:33,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:25:33,795 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 122 [2024-12-02 08:25:33,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:25:33,797 INFO L225 Difference]: With dead ends: 1098 [2024-12-02 08:25:33,797 INFO L226 Difference]: Without dead ends: 631 [2024-12-02 08:25:33,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 344 SyntacticMatches, 4 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 108.6s TimeCoverageRelationStatistics Valid=308, Invalid=3459, Unknown=15, NotChecked=0, Total=3782 [2024-12-02 08:25:33,799 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 78 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:25:33,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1548 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 20.2s Time] [2024-12-02 08:25:33,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-12-02 08:25:33,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 627. [2024-12-02 08:25:33,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 557 states have (on average 1.1741472172351886) internal successors, (654), 564 states have internal predecessors, (654), 55 states have call successors, (55), 14 states have call predecessors, (55), 14 states have return successors, (55), 48 states have call predecessors, (55), 55 states have call successors, (55) [2024-12-02 08:25:33,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 764 transitions. [2024-12-02 08:25:33,929 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 764 transitions. Word has length 122 [2024-12-02 08:25:33,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:25:33,930 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 764 transitions. [2024-12-02 08:25:33,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:25:33,930 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 764 transitions. [2024-12-02 08:25:33,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 08:25:33,931 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:25:33,931 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:25:33,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 08:25:34,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2024-12-02 08:25:34,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:25:34,332 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:25:34,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:25:34,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1648192568, now seen corresponding path program 1 times [2024-12-02 08:25:34,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:25:34,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85160416] [2024-12-02 08:25:34,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:25:34,333 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:25:34,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:25:34,336 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:25:34,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-12-02 08:25:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:25:34,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:25:34,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:25:35,026 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:25:35,026 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 202 treesize of output 58 [2024-12-02 08:25:35,152 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:25:35,152 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:25:35,152 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:25:35,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85160416] [2024-12-02 08:25:35,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85160416] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:25:35,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:25:35,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:25:35,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352674013] [2024-12-02 08:25:35,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:25:35,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:25:35,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:25:35,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:25:35,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:25:35,154 INFO L87 Difference]: Start difference. First operand 627 states and 764 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:25:36,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:25:39,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:25:39,475 INFO L93 Difference]: Finished difference Result 1360 states and 1663 transitions. [2024-12-02 08:25:39,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:25:39,477 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 122 [2024-12-02 08:25:39,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:25:39,479 INFO L225 Difference]: With dead ends: 1360 [2024-12-02 08:25:39,480 INFO L226 Difference]: Without dead ends: 736 [2024-12-02 08:25:39,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:25:39,481 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 69 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:25:39,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 393 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-12-02 08:25:39,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-12-02 08:25:39,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 629. [2024-12-02 08:25:39,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 559 states have (on average 1.1663685152057246) internal successors, (652), 566 states have internal predecessors, (652), 55 states have call successors, (55), 14 states have call predecessors, (55), 14 states have return successors, (55), 48 states have call predecessors, (55), 55 states have call successors, (55) [2024-12-02 08:25:39,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 762 transitions. [2024-12-02 08:25:39,586 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 762 transitions. Word has length 122 [2024-12-02 08:25:39,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:25:39,586 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 762 transitions. [2024-12-02 08:25:39,586 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:25:39,587 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 762 transitions. [2024-12-02 08:25:39,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 08:25:39,587 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:25:39,587 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:25:39,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-12-02 08:25:39,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:25:39,788 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:25:39,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:25:39,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1764638648, now seen corresponding path program 1 times [2024-12-02 08:25:39,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:25:39,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017357821] [2024-12-02 08:25:39,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:25:39,790 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:25:39,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:25:39,792 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:25:39,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-12-02 08:25:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:25:40,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:25:40,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:25:40,549 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:25:40,550 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 202 treesize of output 58 [2024-12-02 08:25:40,682 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 08:25:40,683 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:25:40,683 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:25:40,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017357821] [2024-12-02 08:25:40,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017357821] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:25:40,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:25:40,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:25:40,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054239810] [2024-12-02 08:25:40,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:25:40,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:25:40,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:25:40,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:25:40,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:25:40,684 INFO L87 Difference]: Start difference. First operand 629 states and 762 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:25:41,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:25:45,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:25:45,665 INFO L93 Difference]: Finished difference Result 1205 states and 1467 transitions. [2024-12-02 08:25:45,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:25:45,667 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 122 [2024-12-02 08:25:45,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:25:45,669 INFO L225 Difference]: With dead ends: 1205 [2024-12-02 08:25:45,669 INFO L226 Difference]: Without dead ends: 579 [2024-12-02 08:25:45,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:25:45,671 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 83 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:25:45,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 408 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-12-02 08:25:45,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-12-02 08:25:45,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 577. [2024-12-02 08:25:45,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 507 states have (on average 1.1715976331360947) internal successors, (594), 514 states have internal predecessors, (594), 55 states have call successors, (55), 14 states have call predecessors, (55), 14 states have return successors, (55), 48 states have call predecessors, (55), 55 states have call successors, (55) [2024-12-02 08:25:45,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 704 transitions. [2024-12-02 08:25:45,768 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 704 transitions. Word has length 122 [2024-12-02 08:25:45,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:25:45,768 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 704 transitions. [2024-12-02 08:25:45,768 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 08:25:45,768 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 704 transitions. [2024-12-02 08:25:45,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 08:25:45,769 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:25:45,769 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:25:45,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2024-12-02 08:25:45,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:25:45,970 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:25:45,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:25:45,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1876867966, now seen corresponding path program 1 times [2024-12-02 08:25:45,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:25:45,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089525967] [2024-12-02 08:25:45,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:25:45,971 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:25:45,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:25:45,974 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:25:45,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-12-02 08:25:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:25:46,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 08:25:46,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:25:47,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:25:47,508 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:25:47,508 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 [2024-12-02 08:25:48,031 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:25:48,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 142 treesize of output 72 [2024-12-02 08:25:48,497 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:25:48,497 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 200 treesize of output 113 [2024-12-02 08:25:48,863 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:25:48,863 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 219 treesize of output 137 [2024-12-02 08:25:50,339 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:25:50,339 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 317 treesize of output 109 [2024-12-02 08:25:51,156 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 8 proven. 96 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-12-02 08:25:51,156 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:25:53,065 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:25:53,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1089525967] [2024-12-02 08:25:53,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1089525967] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:25:53,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1024227401] [2024-12-02 08:25:53,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:25:53,065 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:25:53,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:25:53,068 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:25:53,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d535034b-a23b-4934-9614-07675535a952/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2024-12-02 08:26:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:26:03,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-12-02 08:26:03,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:26:04,586 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 19 treesize of output 8 [2024-12-02 08:26:07,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 75 [2024-12-02 08:26:10,222 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:26:10,222 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 195 treesize of output 135 [2024-12-02 08:26:11,898 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:26:11,899 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 118 treesize of output 98 [2024-12-02 08:26:15,698 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:26:15,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 205 treesize of output 140 [2024-12-02 08:26:16,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:26:16,928 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 204 treesize of output 168 [2024-12-02 08:26:25,847 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:26:25,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 287 treesize of output 135