./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16590e9bc433910605f5e4d8182c46930e3c9f2a76ed7e606268a246ee561bc1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:31:10,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:31:10,338 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 18:31:10,345 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:31:10,345 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:31:10,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:31:10,375 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:31:10,376 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:31:10,376 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:31:10,376 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:31:10,376 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:31:10,376 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:31:10,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:31:10,377 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:31:10,377 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:31:10,377 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:31:10,377 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:31:10,377 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:31:10,378 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:31:10,378 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:31:10,378 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:31:10,378 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:31:10,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:31:10,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:31:10,378 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:31:10,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:31:10,378 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:31:10,378 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:31:10,381 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:31:10,381 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:31:10,382 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:31:10,382 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:31:10,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:31:10,383 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:31:10,383 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:31:10,383 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:31:10,383 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:31:10,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:31:10,383 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:31:10,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:31:10,384 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:31:10,384 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:31:10,384 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:31:10,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:31:10,385 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:31:10,385 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:31:10,385 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:31:10,385 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:31:10,385 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_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16590e9bc433910605f5e4d8182c46930e3c9f2a76ed7e606268a246ee561bc1 [2024-11-23 18:31:10,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:31:10,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:31:10,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:31:10,754 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:31:10,755 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:31:10,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i [2024-11-23 18:31:14,331 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/data/791e7e8c0/032816f5be7d4deea5cee988ba75ca7e/FLAG8342c5066 [2024-11-23 18:31:14,737 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:31:14,742 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i [2024-11-23 18:31:14,760 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/data/791e7e8c0/032816f5be7d4deea5cee988ba75ca7e/FLAG8342c5066 [2024-11-23 18:31:14,786 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/data/791e7e8c0/032816f5be7d4deea5cee988ba75ca7e [2024-11-23 18:31:14,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:31:14,791 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:31:14,793 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:31:14,795 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:31:14,800 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:31:14,801 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:31:14" (1/1) ... [2024-11-23 18:31:14,802 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35d9ef82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:31:14, skipping insertion in model container [2024-11-23 18:31:14,804 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:31:14" (1/1) ... [2024-11-23 18:31:14,832 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:31:15,049 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_62f05695-f375-4687-83a9-035b54d45ed1/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i[915,928] [2024-11-23 18:31:15,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:31:15,195 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:31:15,209 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_62f05695-f375-4687-83a9-035b54d45ed1/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i[915,928] [2024-11-23 18:31:15,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:31:15,289 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:31:15,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:31:15 WrapperNode [2024-11-23 18:31:15,291 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:31:15,292 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:31:15,292 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:31:15,292 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:31:15,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:31:15" (1/1) ... [2024-11-23 18:31:15,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:31:15" (1/1) ... [2024-11-23 18:31:15,406 INFO L138 Inliner]: procedures = 30, calls = 179, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 626 [2024-11-23 18:31:15,406 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:31:15,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:31:15,407 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:31:15,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:31:15,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:31:15" (1/1) ... [2024-11-23 18:31:15,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:31:15" (1/1) ... [2024-11-23 18:31:15,432 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:31:15" (1/1) ... [2024-11-23 18:31:15,447 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-23 18:31:15,451 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:31:15" (1/1) ... [2024-11-23 18:31:15,451 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:31:15" (1/1) ... [2024-11-23 18:31:15,499 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:31:15" (1/1) ... [2024-11-23 18:31:15,504 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:31:15" (1/1) ... [2024-11-23 18:31:15,519 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:31:15" (1/1) ... [2024-11-23 18:31:15,526 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:31:15" (1/1) ... [2024-11-23 18:31:15,532 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:31:15" (1/1) ... [2024-11-23 18:31:15,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:31:15,546 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:31:15,546 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:31:15,546 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:31:15,547 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:31:15" (1/1) ... [2024-11-23 18:31:15,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:31:15,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:31:15,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:31:15,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:31:15,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:31:15,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-23 18:31:15,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-23 18:31:15,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-23 18:31:15,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 18:31:15,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-23 18:31:15,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 18:31:15,636 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:31:15,637 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:31:15,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 18:31:15,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:31:15,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:31:15,840 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:31:15,843 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:31:16,946 INFO L? ?]: Removed 174 outVars from TransFormulas that were not future-live. [2024-11-23 18:31:16,947 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:31:16,963 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:31:16,963 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 18:31:16,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:31:16 BoogieIcfgContainer [2024-11-23 18:31:16,964 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:31:16,966 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:31:16,966 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:31:16,972 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:31:16,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:31:14" (1/3) ... [2024-11-23 18:31:16,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d33627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:31:16, skipping insertion in model container [2024-11-23 18:31:16,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:31:15" (2/3) ... [2024-11-23 18:31:16,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d33627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:31:16, skipping insertion in model container [2024-11-23 18:31:16,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:31:16" (3/3) ... [2024-11-23 18:31:16,976 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-3.i [2024-11-23 18:31:16,994 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:31:16,996 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-3.i that has 2 procedures, 149 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 18:31:17,077 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:31:17,096 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;@2f1d89b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:31:17,096 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:31:17,103 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 130 states have (on average 1.4615384615384615) internal successors, (190), 131 states have internal predecessors, (190), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 18:31:17,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-23 18:31:17,122 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:17,123 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:17,123 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:17,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:17,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1212346061, now seen corresponding path program 1 times [2024-11-23 18:31:17,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:17,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446745966] [2024-11-23 18:31:17,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:17,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:18,375 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-23 18:31:18,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:18,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446745966] [2024-11-23 18:31:18,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446745966] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:31:18,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456183524] [2024-11-23 18:31:18,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:18,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:31:18,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:31:18,384 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:31:18,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:31:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:18,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 18:31:18,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:31:18,937 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:31:18,938 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:31:18,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456183524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:18,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:31:18,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-23 18:31:18,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397925537] [2024-11-23 18:31:18,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:18,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:31:18,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:18,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:31:18,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:31:18,988 INFO L87 Difference]: Start difference. First operand has 149 states, 130 states have (on average 1.4615384615384615) internal successors, (190), 131 states have internal predecessors, (190), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:19,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:19,106 INFO L93 Difference]: Finished difference Result 293 states and 457 transitions. [2024-11-23 18:31:19,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:31:19,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 133 [2024-11-23 18:31:19,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:19,121 INFO L225 Difference]: With dead ends: 293 [2024-11-23 18:31:19,121 INFO L226 Difference]: Without dead ends: 147 [2024-11-23 18:31:19,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:31:19,129 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:19,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 628 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:31:19,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-23 18:31:19,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-23 18:31:19,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 129 states have (on average 1.434108527131783) internal successors, (185), 129 states have internal predecessors, (185), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 18:31:19,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 217 transitions. [2024-11-23 18:31:19,196 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 217 transitions. Word has length 133 [2024-11-23 18:31:19,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:19,198 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 217 transitions. [2024-11-23 18:31:19,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:19,198 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 217 transitions. [2024-11-23 18:31:19,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-23 18:31:19,203 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:19,203 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:19,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 18:31:19,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:31:19,408 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:19,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:19,409 INFO L85 PathProgramCache]: Analyzing trace with hash -500527483, now seen corresponding path program 1 times [2024-11-23 18:31:19,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:19,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851280553] [2024-11-23 18:31:19,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:19,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:19,698 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:31:19,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:19,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851280553] [2024-11-23 18:31:19,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851280553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:19,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:31:19,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:31:19,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978690197] [2024-11-23 18:31:19,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:19,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:31:19,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:19,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:31:19,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:31:19,705 INFO L87 Difference]: Start difference. First operand 147 states and 217 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:19,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:19,783 INFO L93 Difference]: Finished difference Result 368 states and 546 transitions. [2024-11-23 18:31:19,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:31:19,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 135 [2024-11-23 18:31:19,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:19,787 INFO L225 Difference]: With dead ends: 368 [2024-11-23 18:31:19,787 INFO L226 Difference]: Without dead ends: 224 [2024-11-23 18:31:19,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:31:19,789 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 114 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:19,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 412 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:31:19,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-23 18:31:19,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 179. [2024-11-23 18:31:19,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 161 states have (on average 1.453416149068323) internal successors, (234), 161 states have internal predecessors, (234), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 18:31:19,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 266 transitions. [2024-11-23 18:31:19,818 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 266 transitions. Word has length 135 [2024-11-23 18:31:19,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:19,819 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 266 transitions. [2024-11-23 18:31:19,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:19,820 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 266 transitions. [2024-11-23 18:31:19,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-23 18:31:19,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:19,823 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:19,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:31:19,827 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:19,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:19,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1678409010, now seen corresponding path program 1 times [2024-11-23 18:31:19,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:19,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471070923] [2024-11-23 18:31:19,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:19,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:22,656 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:31:22,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:22,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471070923] [2024-11-23 18:31:22,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471070923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:22,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:31:22,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:31:22,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413793225] [2024-11-23 18:31:22,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:22,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:31:22,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:22,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:31:22,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:31:22,662 INFO L87 Difference]: Start difference. First operand 179 states and 266 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:23,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:23,265 INFO L93 Difference]: Finished difference Result 531 states and 792 transitions. [2024-11-23 18:31:23,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:31:23,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 135 [2024-11-23 18:31:23,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:23,273 INFO L225 Difference]: With dead ends: 531 [2024-11-23 18:31:23,276 INFO L226 Difference]: Without dead ends: 355 [2024-11-23 18:31:23,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:31:23,278 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 155 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:23,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 550 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 18:31:23,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-23 18:31:23,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 347. [2024-11-23 18:31:23,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 312 states have (on average 1.4487179487179487) internal successors, (452), 312 states have internal predecessors, (452), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 18:31:23,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 516 transitions. [2024-11-23 18:31:23,354 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 516 transitions. Word has length 135 [2024-11-23 18:31:23,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:23,356 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 516 transitions. [2024-11-23 18:31:23,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:23,356 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 516 transitions. [2024-11-23 18:31:23,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-23 18:31:23,365 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:23,365 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:23,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:31:23,365 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:23,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:23,366 INFO L85 PathProgramCache]: Analyzing trace with hash 741335402, now seen corresponding path program 1 times [2024-11-23 18:31:23,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:23,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88282813] [2024-11-23 18:31:23,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:23,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:25,789 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 9 proven. 36 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-23 18:31:25,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:25,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88282813] [2024-11-23 18:31:25,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88282813] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:31:25,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116236857] [2024-11-23 18:31:25,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:25,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:31:25,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:31:25,793 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:31:25,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 18:31:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:26,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-23 18:31:26,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:31:26,201 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:31:26,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 30 [2024-11-23 18:31:26,260 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:31:26,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 33 [2024-11-23 18:31:26,443 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:31:26,443 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:31:26,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116236857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:26,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:31:26,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-23 18:31:26,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167345203] [2024-11-23 18:31:26,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:26,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 18:31:26,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:26,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 18:31:26,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-23 18:31:26,446 INFO L87 Difference]: Start difference. First operand 347 states and 516 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:27,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:27,414 INFO L93 Difference]: Finished difference Result 635 states and 942 transitions. [2024-11-23 18:31:27,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 18:31:27,414 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 136 [2024-11-23 18:31:27,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:27,421 INFO L225 Difference]: With dead ends: 635 [2024-11-23 18:31:27,421 INFO L226 Difference]: Without dead ends: 459 [2024-11-23 18:31:27,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 140 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-23 18:31:27,423 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 117 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:27,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 977 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 18:31:27,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-23 18:31:27,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 456. [2024-11-23 18:31:27,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 416 states have (on average 1.4519230769230769) internal successors, (604), 417 states have internal predecessors, (604), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 18:31:27,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 676 transitions. [2024-11-23 18:31:27,461 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 676 transitions. Word has length 136 [2024-11-23 18:31:27,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:27,461 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 676 transitions. [2024-11-23 18:31:27,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:27,462 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 676 transitions. [2024-11-23 18:31:27,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-23 18:31:27,465 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:27,465 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:27,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 18:31:27,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:31:27,670 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:27,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:27,671 INFO L85 PathProgramCache]: Analyzing trace with hash -608558604, now seen corresponding path program 1 times [2024-11-23 18:31:27,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:27,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685944707] [2024-11-23 18:31:27,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:27,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:29,601 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:31:29,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:29,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685944707] [2024-11-23 18:31:29,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685944707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:29,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:31:29,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:31:29,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076017744] [2024-11-23 18:31:29,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:29,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:31:29,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:29,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:31:29,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:31:29,605 INFO L87 Difference]: Start difference. First operand 456 states and 676 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:30,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:30,133 INFO L93 Difference]: Finished difference Result 917 states and 1360 transitions. [2024-11-23 18:31:30,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:31:30,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-23 18:31:30,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:30,139 INFO L225 Difference]: With dead ends: 917 [2024-11-23 18:31:30,139 INFO L226 Difference]: Without dead ends: 464 [2024-11-23 18:31:30,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:31:30,141 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 147 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:30,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 545 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 18:31:30,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-23 18:31:30,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 456. [2024-11-23 18:31:30,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 416 states have (on average 1.4495192307692308) internal successors, (603), 417 states have internal predecessors, (603), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 18:31:30,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 675 transitions. [2024-11-23 18:31:30,185 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 675 transitions. Word has length 137 [2024-11-23 18:31:30,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:30,187 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 675 transitions. [2024-11-23 18:31:30,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:30,187 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 675 transitions. [2024-11-23 18:31:30,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-23 18:31:30,190 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:30,191 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:30,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 18:31:30,191 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:30,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:30,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1514344948, now seen corresponding path program 1 times [2024-11-23 18:31:30,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:30,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771992585] [2024-11-23 18:31:30,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:30,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:30,464 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-23 18:31:30,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:30,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771992585] [2024-11-23 18:31:30,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771992585] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:31:30,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492457979] [2024-11-23 18:31:30,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:30,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:31:30,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:31:30,468 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:31:30,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 18:31:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:30,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 18:31:30,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:31:30,876 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:31:30,876 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:31:30,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492457979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:30,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:31:30,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-11-23 18:31:30,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286729967] [2024-11-23 18:31:30,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:30,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:31:30,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:30,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:31:30,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:31:30,879 INFO L87 Difference]: Start difference. First operand 456 states and 675 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:30,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:30,936 INFO L93 Difference]: Finished difference Result 918 states and 1359 transitions. [2024-11-23 18:31:30,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:31:30,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-23 18:31:30,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:30,940 INFO L225 Difference]: With dead ends: 918 [2024-11-23 18:31:30,940 INFO L226 Difference]: Without dead ends: 465 [2024-11-23 18:31:30,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:31:30,942 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:30,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 833 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:31:30,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-11-23 18:31:30,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 459. [2024-11-23 18:31:30,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 419 states have (on average 1.4463007159904535) internal successors, (606), 420 states have internal predecessors, (606), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 18:31:30,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 678 transitions. [2024-11-23 18:31:30,991 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 678 transitions. Word has length 137 [2024-11-23 18:31:30,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:30,992 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 678 transitions. [2024-11-23 18:31:30,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:30,992 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 678 transitions. [2024-11-23 18:31:30,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-23 18:31:30,997 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:30,997 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:31,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 18:31:31,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:31:31,200 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:31,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:31,201 INFO L85 PathProgramCache]: Analyzing trace with hash -285582379, now seen corresponding path program 1 times [2024-11-23 18:31:31,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:31,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861193525] [2024-11-23 18:31:31,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:31,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:31,601 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-23 18:31:31,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:31,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861193525] [2024-11-23 18:31:31,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861193525] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:31:31,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734939527] [2024-11-23 18:31:31,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:31,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:31:31,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:31:31,605 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:31:31,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 18:31:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:31,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 18:31:31,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:31:32,010 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:31:32,011 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:31:32,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734939527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:32,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:31:32,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-23 18:31:32,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782541544] [2024-11-23 18:31:32,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:32,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:31:32,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:32,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:31:32,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:31:32,013 INFO L87 Difference]: Start difference. First operand 459 states and 678 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:32,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:32,086 INFO L93 Difference]: Finished difference Result 924 states and 1365 transitions. [2024-11-23 18:31:32,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:31:32,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2024-11-23 18:31:32,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:32,090 INFO L225 Difference]: With dead ends: 924 [2024-11-23 18:31:32,090 INFO L226 Difference]: Without dead ends: 468 [2024-11-23 18:31:32,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:31:32,092 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:32,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 832 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:31:32,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-23 18:31:32,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2024-11-23 18:31:32,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 428 states have (on average 1.4369158878504673) internal successors, (615), 429 states have internal predecessors, (615), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 18:31:32,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 687 transitions. [2024-11-23 18:31:32,130 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 687 transitions. Word has length 138 [2024-11-23 18:31:32,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:32,131 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 687 transitions. [2024-11-23 18:31:32,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:32,131 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 687 transitions. [2024-11-23 18:31:32,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-23 18:31:32,137 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:32,137 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:32,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 18:31:32,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:31:32,338 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:32,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:32,338 INFO L85 PathProgramCache]: Analyzing trace with hash 903635364, now seen corresponding path program 1 times [2024-11-23 18:31:32,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:32,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529006217] [2024-11-23 18:31:32,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:32,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:33,163 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:31:33,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:33,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529006217] [2024-11-23 18:31:33,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529006217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:33,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:31:33,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:31:33,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779320689] [2024-11-23 18:31:33,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:33,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:31:33,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:33,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:31:33,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:31:33,165 INFO L87 Difference]: Start difference. First operand 468 states and 687 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:34,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:34,573 INFO L93 Difference]: Finished difference Result 936 states and 1378 transitions. [2024-11-23 18:31:34,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 18:31:34,574 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2024-11-23 18:31:34,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:34,579 INFO L225 Difference]: With dead ends: 936 [2024-11-23 18:31:34,579 INFO L226 Difference]: Without dead ends: 643 [2024-11-23 18:31:34,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:31:34,583 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 471 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:34,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 567 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 18:31:34,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-23 18:31:34,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 635. [2024-11-23 18:31:34,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 578 states have (on average 1.4359861591695502) internal successors, (830), 579 states have internal predecessors, (830), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-23 18:31:34,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 934 transitions. [2024-11-23 18:31:34,652 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 934 transitions. Word has length 138 [2024-11-23 18:31:34,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:34,654 INFO L471 AbstractCegarLoop]: Abstraction has 635 states and 934 transitions. [2024-11-23 18:31:34,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:34,655 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 934 transitions. [2024-11-23 18:31:34,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-23 18:31:34,657 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:34,657 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:34,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 18:31:34,658 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:34,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:34,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1188514192, now seen corresponding path program 1 times [2024-11-23 18:31:34,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:34,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572018711] [2024-11-23 18:31:34,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:34,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:35,543 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:31:35,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:35,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572018711] [2024-11-23 18:31:35,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572018711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:35,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:31:35,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:31:35,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772537272] [2024-11-23 18:31:35,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:35,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:31:35,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:35,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:31:35,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:31:35,545 INFO L87 Difference]: Start difference. First operand 635 states and 934 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:36,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:36,536 INFO L93 Difference]: Finished difference Result 1275 states and 1876 transitions. [2024-11-23 18:31:36,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:31:36,537 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 138 [2024-11-23 18:31:36,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:36,542 INFO L225 Difference]: With dead ends: 1275 [2024-11-23 18:31:36,542 INFO L226 Difference]: Without dead ends: 757 [2024-11-23 18:31:36,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:31:36,545 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 607 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:36,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 386 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 18:31:36,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2024-11-23 18:31:36,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 749. [2024-11-23 18:31:36,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 674 states have (on average 1.4198813056379822) internal successors, (957), 675 states have internal predecessors, (957), 68 states have call successors, (68), 6 states have call predecessors, (68), 6 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-23 18:31:36,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1093 transitions. [2024-11-23 18:31:36,609 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1093 transitions. Word has length 138 [2024-11-23 18:31:36,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:36,610 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 1093 transitions. [2024-11-23 18:31:36,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:36,611 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1093 transitions. [2024-11-23 18:31:36,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-23 18:31:36,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:36,614 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:36,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 18:31:36,615 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:36,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:36,616 INFO L85 PathProgramCache]: Analyzing trace with hash 735618990, now seen corresponding path program 1 times [2024-11-23 18:31:36,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:36,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744631839] [2024-11-23 18:31:36,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:36,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:38,915 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:31:38,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:38,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744631839] [2024-11-23 18:31:38,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744631839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:38,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:31:38,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 18:31:38,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523034326] [2024-11-23 18:31:38,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:38,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 18:31:38,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:38,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 18:31:38,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:31:38,918 INFO L87 Difference]: Start difference. First operand 749 states and 1093 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:40,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:40,791 INFO L93 Difference]: Finished difference Result 1813 states and 2636 transitions. [2024-11-23 18:31:40,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 18:31:40,792 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-23 18:31:40,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:40,798 INFO L225 Difference]: With dead ends: 1813 [2024-11-23 18:31:40,799 INFO L226 Difference]: Without dead ends: 1067 [2024-11-23 18:31:40,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-23 18:31:40,802 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 115 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:40,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1728 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 18:31:40,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2024-11-23 18:31:40,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 982. [2024-11-23 18:31:40,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 897 states have (on average 1.4202898550724639) internal successors, (1274), 900 states have internal predecessors, (1274), 76 states have call successors, (76), 8 states have call predecessors, (76), 8 states have return successors, (76), 73 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-23 18:31:40,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1426 transitions. [2024-11-23 18:31:40,884 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1426 transitions. Word has length 139 [2024-11-23 18:31:40,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:40,886 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1426 transitions. [2024-11-23 18:31:40,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:40,888 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1426 transitions. [2024-11-23 18:31:40,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-23 18:31:40,892 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:40,892 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:40,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 18:31:40,893 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:40,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:40,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1436683568, now seen corresponding path program 1 times [2024-11-23 18:31:40,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:40,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381107831] [2024-11-23 18:31:40,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:40,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:41,902 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:31:41,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:41,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381107831] [2024-11-23 18:31:41,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381107831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:41,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:31:41,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:31:41,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231205562] [2024-11-23 18:31:41,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:41,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:31:41,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:41,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:31:41,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:31:41,906 INFO L87 Difference]: Start difference. First operand 982 states and 1426 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:42,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:42,751 INFO L93 Difference]: Finished difference Result 2087 states and 3021 transitions. [2024-11-23 18:31:42,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:31:42,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-23 18:31:42,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:42,762 INFO L225 Difference]: With dead ends: 2087 [2024-11-23 18:31:42,762 INFO L226 Difference]: Without dead ends: 1108 [2024-11-23 18:31:42,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:31:42,766 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 121 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:42,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 555 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 18:31:42,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-11-23 18:31:42,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1103. [2024-11-23 18:31:42,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 994 states have (on average 1.408450704225352) internal successors, (1400), 999 states have internal predecessors, (1400), 96 states have call successors, (96), 12 states have call predecessors, (96), 12 states have return successors, (96), 91 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-23 18:31:42,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1592 transitions. [2024-11-23 18:31:42,859 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1592 transitions. Word has length 139 [2024-11-23 18:31:42,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:42,860 INFO L471 AbstractCegarLoop]: Abstraction has 1103 states and 1592 transitions. [2024-11-23 18:31:42,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:42,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1592 transitions. [2024-11-23 18:31:42,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-23 18:31:42,864 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:42,865 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:42,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 18:31:42,865 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:42,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:42,866 INFO L85 PathProgramCache]: Analyzing trace with hash -82029460, now seen corresponding path program 1 times [2024-11-23 18:31:42,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:42,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218764346] [2024-11-23 18:31:42,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:42,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:43,782 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:31:43,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:43,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218764346] [2024-11-23 18:31:43,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218764346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:43,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:31:43,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:31:43,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74147518] [2024-11-23 18:31:43,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:43,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:31:43,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:43,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:31:43,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:31:43,785 INFO L87 Difference]: Start difference. First operand 1103 states and 1592 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:44,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:44,696 INFO L93 Difference]: Finished difference Result 2219 states and 3193 transitions. [2024-11-23 18:31:44,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:31:44,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-23 18:31:44,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:44,705 INFO L225 Difference]: With dead ends: 2219 [2024-11-23 18:31:44,705 INFO L226 Difference]: Without dead ends: 1128 [2024-11-23 18:31:44,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:31:44,708 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 120 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:44,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 807 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 18:31:44,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2024-11-23 18:31:44,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1102. [2024-11-23 18:31:44,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 995 states have (on average 1.406030150753769) internal successors, (1399), 999 states have internal predecessors, (1399), 92 states have call successors, (92), 14 states have call predecessors, (92), 14 states have return successors, (92), 88 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-23 18:31:44,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1583 transitions. [2024-11-23 18:31:44,790 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1583 transitions. Word has length 139 [2024-11-23 18:31:44,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:44,791 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1583 transitions. [2024-11-23 18:31:44,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:44,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1583 transitions. [2024-11-23 18:31:44,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-23 18:31:44,794 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:44,794 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:44,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 18:31:44,795 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:44,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:44,795 INFO L85 PathProgramCache]: Analyzing trace with hash 619035118, now seen corresponding path program 1 times [2024-11-23 18:31:44,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:44,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534472414] [2024-11-23 18:31:44,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:44,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:46,778 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:31:46,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:46,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534472414] [2024-11-23 18:31:46,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534472414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:46,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:31:46,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 18:31:46,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981240507] [2024-11-23 18:31:46,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:46,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:31:46,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:46,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:31:46,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:31:46,781 INFO L87 Difference]: Start difference. First operand 1102 states and 1583 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:48,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:48,325 INFO L93 Difference]: Finished difference Result 2229 states and 3193 transitions. [2024-11-23 18:31:48,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:31:48,326 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-23 18:31:48,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:48,333 INFO L225 Difference]: With dead ends: 2229 [2024-11-23 18:31:48,333 INFO L226 Difference]: Without dead ends: 1130 [2024-11-23 18:31:48,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-23 18:31:48,337 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 113 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:48,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1643 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 18:31:48,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2024-11-23 18:31:48,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 912. [2024-11-23 18:31:48,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 823 states have (on average 1.4094775212636694) internal successors, (1160), 825 states have internal predecessors, (1160), 76 states have call successors, (76), 12 states have call predecessors, (76), 12 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-23 18:31:48,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1312 transitions. [2024-11-23 18:31:48,438 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1312 transitions. Word has length 139 [2024-11-23 18:31:48,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:48,438 INFO L471 AbstractCegarLoop]: Abstraction has 912 states and 1312 transitions. [2024-11-23 18:31:48,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:48,438 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1312 transitions. [2024-11-23 18:31:48,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-23 18:31:48,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:48,442 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:48,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 18:31:48,443 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:48,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:48,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1014010927, now seen corresponding path program 1 times [2024-11-23 18:31:48,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:48,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504765148] [2024-11-23 18:31:48,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:48,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:48,564 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:31:48,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:48,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504765148] [2024-11-23 18:31:48,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504765148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:48,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:31:48,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:31:48,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45568781] [2024-11-23 18:31:48,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:48,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:31:48,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:48,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:31:48,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:31:48,567 INFO L87 Difference]: Start difference. First operand 912 states and 1312 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:48,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:48,745 INFO L93 Difference]: Finished difference Result 1734 states and 2489 transitions. [2024-11-23 18:31:48,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:31:48,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-23 18:31:48,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:48,751 INFO L225 Difference]: With dead ends: 1734 [2024-11-23 18:31:48,751 INFO L226 Difference]: Without dead ends: 784 [2024-11-23 18:31:48,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:31:48,755 INFO L435 NwaCegarLoop]: 312 mSDtfsCounter, 103 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:48,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 507 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:31:48,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2024-11-23 18:31:48,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 641. [2024-11-23 18:31:48,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 580 states have (on average 1.389655172413793) internal successors, (806), 581 states have internal predecessors, (806), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-23 18:31:48,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 910 transitions. [2024-11-23 18:31:48,801 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 910 transitions. Word has length 139 [2024-11-23 18:31:48,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:48,802 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 910 transitions. [2024-11-23 18:31:48,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:48,802 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 910 transitions. [2024-11-23 18:31:48,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-23 18:31:48,806 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:48,806 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:48,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 18:31:48,806 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:48,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:48,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1227230246, now seen corresponding path program 1 times [2024-11-23 18:31:48,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:48,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491405547] [2024-11-23 18:31:48,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:48,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:51,404 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:31:51,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:51,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491405547] [2024-11-23 18:31:51,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491405547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:51,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:31:51,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 18:31:51,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676516132] [2024-11-23 18:31:51,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:51,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 18:31:51,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:51,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 18:31:51,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:31:51,407 INFO L87 Difference]: Start difference. First operand 641 states and 910 transitions. Second operand has 10 states, 9 states have (on average 7.0) internal successors, (63), 10 states have internal predecessors, (63), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 18:31:52,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:52,936 INFO L93 Difference]: Finished difference Result 1319 states and 1868 transitions. [2024-11-23 18:31:52,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 18:31:52,937 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.0) internal successors, (63), 10 states have internal predecessors, (63), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 140 [2024-11-23 18:31:52,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:52,942 INFO L225 Difference]: With dead ends: 1319 [2024-11-23 18:31:52,943 INFO L226 Difference]: Without dead ends: 917 [2024-11-23 18:31:52,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-11-23 18:31:52,946 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 226 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:52,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 1101 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 18:31:52,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2024-11-23 18:31:52,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 908. [2024-11-23 18:31:52,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 840 states have (on average 1.4) internal successors, (1176), 843 states have internal predecessors, (1176), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 53 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-23 18:31:53,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1288 transitions. [2024-11-23 18:31:53,005 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1288 transitions. Word has length 140 [2024-11-23 18:31:53,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:53,006 INFO L471 AbstractCegarLoop]: Abstraction has 908 states and 1288 transitions. [2024-11-23 18:31:53,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.0) internal successors, (63), 10 states have internal predecessors, (63), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 18:31:53,006 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1288 transitions. [2024-11-23 18:31:53,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-23 18:31:53,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:53,010 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:53,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 18:31:53,010 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:53,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:53,011 INFO L85 PathProgramCache]: Analyzing trace with hash -392576892, now seen corresponding path program 1 times [2024-11-23 18:31:53,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:53,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838599162] [2024-11-23 18:31:53,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:53,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:54,518 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:31:54,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:54,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838599162] [2024-11-23 18:31:54,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838599162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:31:54,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:31:54,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:31:54,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265407527] [2024-11-23 18:31:54,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:31:54,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:31:54,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:31:54,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:31:54,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:31:54,521 INFO L87 Difference]: Start difference. First operand 908 states and 1288 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:55,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:31:55,307 INFO L93 Difference]: Finished difference Result 1834 states and 2609 transitions. [2024-11-23 18:31:55,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:31:55,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 140 [2024-11-23 18:31:55,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:31:55,314 INFO L225 Difference]: With dead ends: 1834 [2024-11-23 18:31:55,314 INFO L226 Difference]: Without dead ends: 1169 [2024-11-23 18:31:55,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:31:55,317 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 108 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:31:55,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 530 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 18:31:55,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2024-11-23 18:31:55,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1075. [2024-11-23 18:31:55,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 1007 states have (on average 1.4051638530287984) internal successors, (1415), 1010 states have internal predecessors, (1415), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 53 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-23 18:31:55,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1527 transitions. [2024-11-23 18:31:55,371 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1527 transitions. Word has length 140 [2024-11-23 18:31:55,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:31:55,372 INFO L471 AbstractCegarLoop]: Abstraction has 1075 states and 1527 transitions. [2024-11-23 18:31:55,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:31:55,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1527 transitions. [2024-11-23 18:31:55,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-23 18:31:55,375 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:31:55,375 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:31:55,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 18:31:55,377 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:31:55,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:31:55,377 INFO L85 PathProgramCache]: Analyzing trace with hash 921922377, now seen corresponding path program 1 times [2024-11-23 18:31:55,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:31:55,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726456029] [2024-11-23 18:31:55,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:55,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:31:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:56,803 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 9 proven. 36 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-23 18:31:56,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:31:56,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726456029] [2024-11-23 18:31:56,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726456029] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:31:56,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781973981] [2024-11-23 18:31:56,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:31:56,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:31:56,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:31:56,806 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:31:56,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 18:31:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:31:57,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-23 18:31:57,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:31:57,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 80 [2024-11-23 18:31:58,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 118 [2024-11-23 18:31:58,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 18:31:58,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 18:31:59,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 18:31:59,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 18:31:59,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 18:31:59,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 18:31:59,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 18:31:59,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 18:31:59,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2024-11-23 18:31:59,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 70 [2024-11-23 18:31:59,652 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:31:59,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2024-11-23 18:31:59,872 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 165 proven. 36 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-23 18:31:59,872 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:32:00,942 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 9 proven. 36 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-23 18:32:00,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781973981] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:32:00,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:32:00,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 9] total 22 [2024-11-23 18:32:00,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433115599] [2024-11-23 18:32:00,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:32:00,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-23 18:32:00,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:00,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-23 18:32:00,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2024-11-23 18:32:00,946 INFO L87 Difference]: Start difference. First operand 1075 states and 1527 transitions. Second operand has 22 states, 19 states have (on average 7.842105263157895) internal successors, (149), 22 states have internal predecessors, (149), 8 states have call successors, (45), 3 states have call predecessors, (45), 6 states have return successors, (45), 5 states have call predecessors, (45), 8 states have call successors, (45) [2024-11-23 18:32:12,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:32:12,540 INFO L93 Difference]: Finished difference Result 2453 states and 3462 transitions. [2024-11-23 18:32:12,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-23 18:32:12,540 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 7.842105263157895) internal successors, (149), 22 states have internal predecessors, (149), 8 states have call successors, (45), 3 states have call predecessors, (45), 6 states have return successors, (45), 5 states have call predecessors, (45), 8 states have call successors, (45) Word has length 142 [2024-11-23 18:32:12,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:32:12,548 INFO L225 Difference]: With dead ends: 2453 [2024-11-23 18:32:12,548 INFO L226 Difference]: Without dead ends: 1394 [2024-11-23 18:32:12,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 279 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=312, Invalid=1248, Unknown=0, NotChecked=0, Total=1560 [2024-11-23 18:32:12,552 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 1075 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:32:12,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 827 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2024-11-23 18:32:12,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2024-11-23 18:32:12,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 875. [2024-11-23 18:32:12,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 815 states have (on average 1.396319018404908) internal successors, (1138), 815 states have internal predecessors, (1138), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-23 18:32:12,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1234 transitions. [2024-11-23 18:32:12,609 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1234 transitions. Word has length 142 [2024-11-23 18:32:12,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:32:12,610 INFO L471 AbstractCegarLoop]: Abstraction has 875 states and 1234 transitions. [2024-11-23 18:32:12,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 7.842105263157895) internal successors, (149), 22 states have internal predecessors, (149), 8 states have call successors, (45), 3 states have call predecessors, (45), 6 states have return successors, (45), 5 states have call predecessors, (45), 8 states have call successors, (45) [2024-11-23 18:32:12,610 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1234 transitions. [2024-11-23 18:32:12,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-23 18:32:12,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:12,614 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:12,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 18:32:12,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:32:12,818 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:12,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:12,819 INFO L85 PathProgramCache]: Analyzing trace with hash -2106000864, now seen corresponding path program 1 times [2024-11-23 18:32:12,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:12,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064897203] [2024-11-23 18:32:12,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:12,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:13,136 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:32:13,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:13,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064897203] [2024-11-23 18:32:13,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064897203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:13,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:13,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:32:13,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948743766] [2024-11-23 18:32:13,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:13,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:32:13,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:13,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:32:13,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:32:13,139 INFO L87 Difference]: Start difference. First operand 875 states and 1234 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:32:13,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:32:13,722 INFO L93 Difference]: Finished difference Result 2282 states and 3216 transitions. [2024-11-23 18:32:13,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:32:13,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 142 [2024-11-23 18:32:13,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:32:13,732 INFO L225 Difference]: With dead ends: 2282 [2024-11-23 18:32:13,732 INFO L226 Difference]: Without dead ends: 1410 [2024-11-23 18:32:13,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:32:13,735 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 187 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:32:13,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 488 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 18:32:13,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-11-23 18:32:13,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 881. [2024-11-23 18:32:13,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 821 states have (on average 1.3934226552984166) internal successors, (1144), 821 states have internal predecessors, (1144), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-23 18:32:13,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1240 transitions. [2024-11-23 18:32:13,794 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1240 transitions. Word has length 142 [2024-11-23 18:32:13,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:32:13,795 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1240 transitions. [2024-11-23 18:32:13,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:32:13,795 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1240 transitions. [2024-11-23 18:32:13,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-23 18:32:13,797 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:13,798 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:13,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 18:32:13,799 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:13,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:13,800 INFO L85 PathProgramCache]: Analyzing trace with hash 2054952926, now seen corresponding path program 1 times [2024-11-23 18:32:13,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:13,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439505668] [2024-11-23 18:32:13,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:13,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:15,035 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:32:15,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:15,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439505668] [2024-11-23 18:32:15,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439505668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:15,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:15,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 18:32:15,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886250899] [2024-11-23 18:32:15,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:15,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 18:32:15,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:15,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 18:32:15,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:32:15,039 INFO L87 Difference]: Start difference. First operand 881 states and 1240 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 18:32:16,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:32:16,266 INFO L93 Difference]: Finished difference Result 1915 states and 2679 transitions. [2024-11-23 18:32:16,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 18:32:16,267 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 142 [2024-11-23 18:32:16,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:32:16,272 INFO L225 Difference]: With dead ends: 1915 [2024-11-23 18:32:16,273 INFO L226 Difference]: Without dead ends: 1037 [2024-11-23 18:32:16,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:32:16,275 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 153 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:32:16,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 874 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 18:32:16,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-11-23 18:32:16,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 943. [2024-11-23 18:32:16,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 872 states have (on average 1.3876146788990826) internal successors, (1210), 873 states have internal predecessors, (1210), 56 states have call successors, (56), 14 states have call predecessors, (56), 14 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-23 18:32:16,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1322 transitions. [2024-11-23 18:32:16,330 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1322 transitions. Word has length 142 [2024-11-23 18:32:16,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:32:16,331 INFO L471 AbstractCegarLoop]: Abstraction has 943 states and 1322 transitions. [2024-11-23 18:32:16,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 18:32:16,331 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1322 transitions. [2024-11-23 18:32:16,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-23 18:32:16,333 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:16,334 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:16,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 18:32:16,334 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:16,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:16,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1938950114, now seen corresponding path program 1 times [2024-11-23 18:32:16,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:16,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997279534] [2024-11-23 18:32:16,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:16,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:17,670 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:32:17,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:17,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997279534] [2024-11-23 18:32:17,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997279534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:17,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:17,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:32:17,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627545181] [2024-11-23 18:32:17,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:17,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:32:17,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:17,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:32:17,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:32:17,673 INFO L87 Difference]: Start difference. First operand 943 states and 1322 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 18:32:18,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:32:18,389 INFO L93 Difference]: Finished difference Result 1963 states and 2746 transitions. [2024-11-23 18:32:18,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:32:18,390 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2024-11-23 18:32:18,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:32:18,411 INFO L225 Difference]: With dead ends: 1963 [2024-11-23 18:32:18,411 INFO L226 Difference]: Without dead ends: 1023 [2024-11-23 18:32:18,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:32:18,413 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 96 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:32:18,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 581 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 18:32:18,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2024-11-23 18:32:18,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 935. [2024-11-23 18:32:18,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 864 states have (on average 1.3831018518518519) internal successors, (1195), 865 states have internal predecessors, (1195), 56 states have call successors, (56), 14 states have call predecessors, (56), 14 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-23 18:32:18,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1307 transitions. [2024-11-23 18:32:18,470 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1307 transitions. Word has length 143 [2024-11-23 18:32:18,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:32:18,471 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1307 transitions. [2024-11-23 18:32:18,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 18:32:18,471 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1307 transitions. [2024-11-23 18:32:18,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-23 18:32:18,473 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:18,473 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:18,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 18:32:18,474 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:18,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:18,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1104296760, now seen corresponding path program 1 times [2024-11-23 18:32:18,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:18,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301644351] [2024-11-23 18:32:18,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:18,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:32:18,589 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:32:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:32:18,729 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 18:32:18,729 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 18:32:18,731 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 18:32:18,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 18:32:18,737 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:18,847 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 18:32:18,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:32:18 BoogieIcfgContainer [2024-11-23 18:32:18,855 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 18:32:18,857 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 18:32:18,857 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 18:32:18,857 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 18:32:18,858 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:31:16" (3/4) ... [2024-11-23 18:32:18,861 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 18:32:18,862 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 18:32:18,863 INFO L158 Benchmark]: Toolchain (without parser) took 64072.15ms. Allocated memory was 117.4MB in the beginning and 746.6MB in the end (delta: 629.1MB). Free memory was 92.5MB in the beginning and 625.9MB in the end (delta: -533.4MB). Peak memory consumption was 95.6MB. Max. memory is 16.1GB. [2024-11-23 18:32:18,863 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:32:18,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 498.21ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 75.0MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 18:32:18,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.58ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 70.9MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:32:18,865 INFO L158 Benchmark]: Boogie Preprocessor took 138.08ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 67.1MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:32:18,866 INFO L158 Benchmark]: RCFGBuilder took 1418.04ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 82.2MB in the end (delta: -15.1MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2024-11-23 18:32:18,866 INFO L158 Benchmark]: TraceAbstraction took 61888.94ms. Allocated memory was 117.4MB in the beginning and 746.6MB in the end (delta: 629.1MB). Free memory was 81.6MB in the beginning and 630.2MB in the end (delta: -548.6MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2024-11-23 18:32:18,867 INFO L158 Benchmark]: Witness Printer took 5.30ms. Allocated memory is still 746.6MB. Free memory was 630.2MB in the beginning and 625.9MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:32:18,872 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 498.21ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 75.0MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.58ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 70.9MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 138.08ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 67.1MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1418.04ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 82.2MB in the end (delta: -15.1MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * TraceAbstraction took 61888.94ms. Allocated memory was 117.4MB in the beginning and 746.6MB in the end (delta: 629.1MB). Free memory was 81.6MB in the beginning and 630.2MB in the end (delta: -548.6MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. * Witness Printer took 5.30ms. Allocated memory is still 746.6MB. Free memory was 630.2MB in the beginning and 625.9MB in the end (delta: 4.3MB). 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 someUnaryDOUBLEoperation at line 51, overapproximation of someBinaryDOUBLEComparisonOperation at line 107, overapproximation of someBinaryDOUBLEComparisonOperation at line 109, overapproximation of someBinaryDOUBLEComparisonOperation at line 117, overapproximation of someBinaryDOUBLEComparisonOperation at line 111, overapproximation of someBinaryDOUBLEComparisonOperation at line 107, overapproximation of someBinaryDOUBLEComparisonOperation at line 105, overapproximation of someBinaryDOUBLEComparisonOperation at line 105, overapproximation of someBinaryDOUBLEComparisonOperation at line 109, overapproximation of someBinaryDOUBLEComparisonOperation at line 111. Possible FailurePath: [L38] unsigned char isInitial = 0; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 0, 0, 0, -64, -5, 500, -5, -100, 1, 127.5, 15.75, -0.5, 5.25, 8.5 }; [L55] unsigned char last_1_WrapperStruct00_var_1_11 = 1; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_11=1] [L121] isInitial = 1 [L122] FCALL initially() [L124] CALL updateLastVariables() [L114] EXPR WrapperStruct00.var_1_11 [L114] last_1_WrapperStruct00_var_1_11 = WrapperStruct00.var_1_11 [L124] RET updateLastVariables() [L125] CALL updateVariables() [L86] WrapperStruct00.var_1_4 = __VERIFIER_nondet_uchar() [L87] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L87] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L87] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L88] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L88] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L88] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L89] WrapperStruct00.var_1_5 = __VERIFIER_nondet_uchar() [L90] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L90] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L90] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L91] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L92] WrapperStruct00.var_1_7 = __VERIFIER_nondet_long() [L93] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= -1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L93] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= -1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L94] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L94] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L95] WrapperStruct00.var_1_8 = __VERIFIER_nondet_long() [L96] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= -1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= -1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L97] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L97] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L98] WrapperStruct00.var_1_9 = __VERIFIER_nondet_long() [L99] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= -536870912) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L99] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= -536870912) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L100] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L100] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 536870912) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L100] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 536870912) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L101] WrapperStruct00.var_1_10 = __VERIFIER_nondet_long() [L102] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= -536870911) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L102] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= -536870911) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L103] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 536870911) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L103] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 536870911) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L104] WrapperStruct00.var_1_13 = __VERIFIER_nondet_double() [L105] EXPR WrapperStruct00.var_1_13 [L105] EXPR WrapperStruct00.var_1_13 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F [L105] EXPR WrapperStruct00.var_1_13 [L105] EXPR WrapperStruct00.var_1_13 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L105] EXPR (WrapperStruct00.var_1_13 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L105] CALL assume_abort_if_not((WrapperStruct00.var_1_13 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L105] RET assume_abort_if_not((WrapperStruct00.var_1_13 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L106] WrapperStruct00.var_1_14 = __VERIFIER_nondet_double() [L107] EXPR WrapperStruct00.var_1_14 [L107] EXPR WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F [L107] EXPR WrapperStruct00.var_1_14 [L107] EXPR WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L107] EXPR (WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L107] CALL assume_abort_if_not((WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L107] RET assume_abort_if_not((WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L108] WrapperStruct00.var_1_15 = __VERIFIER_nondet_double() [L109] EXPR WrapperStruct00.var_1_15 [L109] EXPR WrapperStruct00.var_1_15 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F [L109] EXPR WrapperStruct00.var_1_15 [L109] EXPR WrapperStruct00.var_1_15 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L109] EXPR (WrapperStruct00.var_1_15 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F) || (WrapperStruct00.var_1_15 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_15 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L109] CALL assume_abort_if_not((WrapperStruct00.var_1_15 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F) || (WrapperStruct00.var_1_15 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_15 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L109] RET assume_abort_if_not((WrapperStruct00.var_1_15 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F) || (WrapperStruct00.var_1_15 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_15 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L110] WrapperStruct00.var_1_16 = __VERIFIER_nondet_double() [L111] EXPR WrapperStruct00.var_1_16 [L111] EXPR WrapperStruct00.var_1_16 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_16 <= -1.0e-20F [L111] EXPR WrapperStruct00.var_1_16 [L111] EXPR WrapperStruct00.var_1_16 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_16 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L111] EXPR (WrapperStruct00.var_1_16 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_16 <= -1.0e-20F) || (WrapperStruct00.var_1_16 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_16 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L111] CALL assume_abort_if_not((WrapperStruct00.var_1_16 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_16 <= -1.0e-20F) || (WrapperStruct00.var_1_16 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_16 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L111] RET assume_abort_if_not((WrapperStruct00.var_1_16 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_16 <= -1.0e-20F) || (WrapperStruct00.var_1_16 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_16 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L125] RET updateVariables() [L126] CALL step() [L59] unsigned char stepLocal_0 = last_1_WrapperStruct00_var_1_11; VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1, stepLocal_0=1] [L60] COND FALSE !(! last_1_WrapperStruct00_var_1_11) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1, stepLocal_0=1] [L65] EXPR WrapperStruct00.var_1_7 [L65] signed long int stepLocal_2 = WrapperStruct00.var_1_7; [L66] EXPR WrapperStruct00.var_1_10 [L66] signed long int stepLocal_1 = WrapperStruct00.var_1_10; [L67] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1, stepLocal_0=1, stepLocal_1=536870911, stepLocal_2=1073741822] [L67] COND FALSE !(WrapperStruct00.var_1_8 <= stepLocal_2) [L74] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1, stepLocal_0=1, stepLocal_1=536870911] [L74] COND FALSE !(! WrapperStruct00.var_1_11) [L77] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1, stepLocal_0=1, stepLocal_1=536870911] [L77] EXPR ((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9) [L77] EXPR WrapperStruct00.var_1_9 [L77] EXPR ((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1, stepLocal_0=1, stepLocal_1=536870911] [L77] EXPR WrapperStruct00.var_1_10 [L77] EXPR WrapperStruct00.var_1_7 [L77] WrapperStruct00.var_1_6 = ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7) [L79] WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1, stepLocal_0=1, stepLocal_1=536870911] [L79] COND FALSE !(WrapperStruct00.var_1_4) [L82] EXPR WrapperStruct00.var_1_15 [L82] WrapperStruct00.var_1_12 = WrapperStruct00.var_1_15 [L126] RET step() [L127] CALL, EXPR property() [L117] EXPR (! last_1_WrapperStruct00_var_1_11) ? ((last_1_WrapperStruct00_var_1_11 && last_1_WrapperStruct00_var_1_11) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5))) : 1) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR ((! last_1_WrapperStruct00_var_1_11) ? ((last_1_WrapperStruct00_var_1_11 && last_1_WrapperStruct00_var_1_11) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5))) : 1) : 1) && ((! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7)))) [L117] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR (! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7))) [L117] EXPR WrapperStruct00.var_1_6 [L117] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR ((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9) [L117] EXPR WrapperStruct00.var_1_9 [L117] EXPR ((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR WrapperStruct00.var_1_10 [L117] EXPR WrapperStruct00.var_1_7 [L117] EXPR (! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR ((! last_1_WrapperStruct00_var_1_11) ? ((last_1_WrapperStruct00_var_1_11 && last_1_WrapperStruct00_var_1_11) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5))) : 1) : 1) && ((! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR (((! last_1_WrapperStruct00_var_1_11) ? ((last_1_WrapperStruct00_var_1_11 && last_1_WrapperStruct00_var_1_11) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5))) : 1) : 1) && ((! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7))))) && ((WrapperStruct00.var_1_8 <= WrapperStruct00.var_1_7) ? ((WrapperStruct00.var_1_10 >= WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_11 == ((unsigned char) (! WrapperStruct00.var_1_5))) : (WrapperStruct00.var_1_11 == ((unsigned char) (WrapperStruct00.var_1_1 || (! WrapperStruct00.var_1_5))))) : 1) [L117] EXPR WrapperStruct00.var_1_8 [L117] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR (WrapperStruct00.var_1_8 <= WrapperStruct00.var_1_7) ? ((WrapperStruct00.var_1_10 >= WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_11 == ((unsigned char) (! WrapperStruct00.var_1_5))) : (WrapperStruct00.var_1_11 == ((unsigned char) (WrapperStruct00.var_1_1 || (! WrapperStruct00.var_1_5))))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR (((! last_1_WrapperStruct00_var_1_11) ? ((last_1_WrapperStruct00_var_1_11 && last_1_WrapperStruct00_var_1_11) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5))) : 1) : 1) && ((! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7))))) && ((WrapperStruct00.var_1_8 <= WrapperStruct00.var_1_7) ? ((WrapperStruct00.var_1_10 >= WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_11 == ((unsigned char) (! WrapperStruct00.var_1_5))) : (WrapperStruct00.var_1_11 == ((unsigned char) (WrapperStruct00.var_1_1 || (! WrapperStruct00.var_1_5))))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR ((((! last_1_WrapperStruct00_var_1_11) ? ((last_1_WrapperStruct00_var_1_11 && last_1_WrapperStruct00_var_1_11) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5))) : 1) : 1) && ((! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7))))) && ((WrapperStruct00.var_1_8 <= WrapperStruct00.var_1_7) ? ((WrapperStruct00.var_1_10 >= WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_11 == ((unsigned char) (! WrapperStruct00.var_1_5))) : (WrapperStruct00.var_1_11 == ((unsigned char) (WrapperStruct00.var_1_1 || (! WrapperStruct00.var_1_5))))) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_12 == ((double) (((((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) < ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))))))) ? ((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) : ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16)))))))))) : (WrapperStruct00.var_1_12 == ((double) WrapperStruct00.var_1_15))) [L117] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_12 == ((double) (((((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) < ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))))))) ? ((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) : ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16)))))))))) : (WrapperStruct00.var_1_12 == ((double) WrapperStruct00.var_1_15)) [L117] EXPR WrapperStruct00.var_1_12 [L117] EXPR WrapperStruct00.var_1_15 [L117] EXPR WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_12 == ((double) (((((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) < ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))))))) ? ((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) : ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16)))))))))) : (WrapperStruct00.var_1_12 == ((double) WrapperStruct00.var_1_15)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117] EXPR ((((! last_1_WrapperStruct00_var_1_11) ? ((last_1_WrapperStruct00_var_1_11 && last_1_WrapperStruct00_var_1_11) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5))) : 1) : 1) && ((! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7))))) && ((WrapperStruct00.var_1_8 <= WrapperStruct00.var_1_7) ? ((WrapperStruct00.var_1_10 >= WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_11 == ((unsigned char) (! WrapperStruct00.var_1_5))) : (WrapperStruct00.var_1_11 == ((unsigned char) (WrapperStruct00.var_1_1 || (! WrapperStruct00.var_1_5))))) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_12 == ((double) (((((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) < ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))))))) ? ((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) : ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16)))))))))) : (WrapperStruct00.var_1_12 == ((double) WrapperStruct00.var_1_15))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L117-L118] return ((((! last_1_WrapperStruct00_var_1_11) ? ((last_1_WrapperStruct00_var_1_11 && last_1_WrapperStruct00_var_1_11) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 || WrapperStruct00.var_1_5))) : 1) : 1) && ((! WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_6 == ((signed long int) (WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8))) : (WrapperStruct00.var_1_6 == ((signed long int) ((((((WrapperStruct00.var_1_9) < 0 ) ? -(WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_9))) + WrapperStruct00.var_1_10) + WrapperStruct00.var_1_7))))) && ((WrapperStruct00.var_1_8 <= WrapperStruct00.var_1_7) ? ((WrapperStruct00.var_1_10 >= WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_11 == ((unsigned char) (! WrapperStruct00.var_1_5))) : (WrapperStruct00.var_1_11 == ((unsigned char) (WrapperStruct00.var_1_1 || (! WrapperStruct00.var_1_5))))) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_12 == ((double) (((((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) < ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))))))) ? ((((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14))) + WrapperStruct00.var_1_15)) : ((((((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) < 0 ) ? -((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16))) : ((((3.5) < (WrapperStruct00.var_1_16)) ? (3.5) : (WrapperStruct00.var_1_16)))))))))) : (WrapperStruct00.var_1_12 == ((double) WrapperStruct00.var_1_15))) ; [L127] RET, EXPR property() [L127] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 149 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 61.7s, OverallIterations: 21, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 26.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4034 SdHoareTripleChecker+Valid, 22.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4028 mSDsluCounter, 15371 SdHoareTripleChecker+Invalid, 20.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11277 mSDsCounter, 347 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9102 IncrementalHoareTripleChecker+Invalid, 9449 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 347 mSolverCounterUnsat, 4094 mSDtfsCounter, 9102 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1134 GetRequests, 971 SyntacticMatches, 3 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1103occurred in iteration=11, InterpolantAutomatonStates: 143, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 20 MinimizatonAttempts, 1896 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 27.8s InterpolantComputationTime, 3600 NumberOfCodeBlocks, 3600 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 3573 ConstructedInterpolants, 0 QuantifiedInterpolants, 10311 SizeOfPredicates, 10 NumberOfNonLiveVariables, 2458 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 26 InterpolantComputations, 19 PerfectInterpolantSequences, 12201/12480 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-23 18:32:18,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/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_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16590e9bc433910605f5e4d8182c46930e3c9f2a76ed7e606268a246ee561bc1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:32:22,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:32:22,455 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 18:32:22,467 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:32:22,468 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:32:22,499 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:32:22,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:32:22,500 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:32:22,500 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:32:22,501 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:32:22,501 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:32:22,501 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:32:22,501 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:32:22,501 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:32:22,501 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:32:22,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:32:22,504 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:32:22,504 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:32:22,506 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:32:22,506 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:32:22,506 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:32:22,506 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:32:22,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:32:22,507 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 18:32:22,507 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 18:32:22,507 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 18:32:22,507 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:32:22,507 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:32:22,508 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:32:22,508 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:32:22,508 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:32:22,508 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:32:22,508 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:32:22,508 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:32:22,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:32:22,508 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:32:22,509 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:32:22,509 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:32:22,509 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:32:22,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:32:22,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:32:22,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:32:22,511 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:32:22,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:32:22,511 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 18:32:22,511 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 18:32:22,511 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:32:22,511 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:32:22,511 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:32:22,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:32:22,512 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_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16590e9bc433910605f5e4d8182c46930e3c9f2a76ed7e606268a246ee561bc1 [2024-11-23 18:32:22,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:32:22,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:32:22,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:32:22,949 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:32:22,950 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:32:22,951 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i [2024-11-23 18:32:26,736 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/data/c5d87531a/7e995ba96a234516bf45fef7a71eab87/FLAGafc152e38 [2024-11-23 18:32:27,045 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:32:27,048 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i [2024-11-23 18:32:27,061 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/data/c5d87531a/7e995ba96a234516bf45fef7a71eab87/FLAGafc152e38 [2024-11-23 18:32:27,079 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/data/c5d87531a/7e995ba96a234516bf45fef7a71eab87 [2024-11-23 18:32:27,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:32:27,085 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:32:27,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:32:27,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:32:27,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:32:27,094 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:32:27" (1/1) ... [2024-11-23 18:32:27,095 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56134380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:27, skipping insertion in model container [2024-11-23 18:32:27,095 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:32:27" (1/1) ... [2024-11-23 18:32:27,120 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:32:27,314 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_62f05695-f375-4687-83a9-035b54d45ed1/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i[915,928] [2024-11-23 18:32:27,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:32:27,474 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:32:27,492 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_62f05695-f375-4687-83a9-035b54d45ed1/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-3.i[915,928] [2024-11-23 18:32:27,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:32:27,657 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:32:27,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:27 WrapperNode [2024-11-23 18:32:27,659 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:32:27,661 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:32:27,662 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:32:27,663 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:32:27,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:27" (1/1) ... [2024-11-23 18:32:27,709 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:27" (1/1) ... [2024-11-23 18:32:27,782 INFO L138 Inliner]: procedures = 34, calls = 179, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 621 [2024-11-23 18:32:27,786 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:32:27,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:32:27,791 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:32:27,791 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:32:27,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:27" (1/1) ... [2024-11-23 18:32:27,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:27" (1/1) ... [2024-11-23 18:32:27,817 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:27" (1/1) ... [2024-11-23 18:32:27,873 INFO L175 MemorySlicer]: Split 152 memory accesses to 2 slices as follows [2, 150]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 32 writes are split as follows [0, 32]. [2024-11-23 18:32:27,877 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:27" (1/1) ... [2024-11-23 18:32:27,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:27" (1/1) ... [2024-11-23 18:32:27,939 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:27" (1/1) ... [2024-11-23 18:32:27,945 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:27" (1/1) ... [2024-11-23 18:32:27,961 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:27" (1/1) ... [2024-11-23 18:32:27,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:27" (1/1) ... [2024-11-23 18:32:27,968 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:27" (1/1) ... [2024-11-23 18:32:27,983 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:32:27,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:32:27,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:32:27,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:32:27,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:27" (1/1) ... [2024-11-23 18:32:28,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:32:28,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:32:28,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:32:28,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:32:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:32:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-23 18:32:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-23 18:32:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#0 [2024-11-23 18:32:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#1 [2024-11-23 18:32:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-23 18:32:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-23 18:32:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-23 18:32:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-23 18:32:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 18:32:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-23 18:32:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-23 18:32:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-23 18:32:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-23 18:32:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-23 18:32:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-23 18:32:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-23 18:32:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:32:28,107 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:32:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:32:28,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:32:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-23 18:32:28,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-23 18:32:28,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-23 18:32:28,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-23 18:32:28,362 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:32:28,365 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:32:32,395 INFO L? ?]: Removed 192 outVars from TransFormulas that were not future-live. [2024-11-23 18:32:32,395 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:32:32,411 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:32:32,411 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 18:32:32,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:32:32 BoogieIcfgContainer [2024-11-23 18:32:32,412 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:32:32,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:32:32,415 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:32:32,421 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:32:32,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:32:27" (1/3) ... [2024-11-23 18:32:32,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701b33a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:32:32, skipping insertion in model container [2024-11-23 18:32:32,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:27" (2/3) ... [2024-11-23 18:32:32,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701b33a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:32:32, skipping insertion in model container [2024-11-23 18:32:32,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:32:32" (3/3) ... [2024-11-23 18:32:32,425 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-3.i [2024-11-23 18:32:32,444 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:32:32,446 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-3.i that has 2 procedures, 149 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 18:32:32,514 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:32:32,527 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;@37e516bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:32:32,527 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:32:32,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 130 states have (on average 1.4615384615384615) internal successors, (190), 131 states have internal predecessors, (190), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 18:32:32,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-23 18:32:32,548 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:32,549 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:32,549 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:32,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:32,556 INFO L85 PathProgramCache]: Analyzing trace with hash -962361363, now seen corresponding path program 1 times [2024-11-23 18:32:32,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:32:32,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556875544] [2024-11-23 18:32:32,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:32,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:32:32,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:32:32,574 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:32:32,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-23 18:32:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:33,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 18:32:33,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:32:33,220 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-23 18:32:33,220 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:32:33,221 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:32:33,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556875544] [2024-11-23 18:32:33,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556875544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:33,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:33,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:32:33,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747991390] [2024-11-23 18:32:33,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:33,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:32:33,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:32:33,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:32:33,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:32:33,269 INFO L87 Difference]: Start difference. First operand has 149 states, 130 states have (on average 1.4615384615384615) internal successors, (190), 131 states have internal predecessors, (190), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 18:32:33,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:32:33,313 INFO L93 Difference]: Finished difference Result 291 states and 454 transitions. [2024-11-23 18:32:33,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:32:33,318 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2024-11-23 18:32:33,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:32:33,326 INFO L225 Difference]: With dead ends: 291 [2024-11-23 18:32:33,327 INFO L226 Difference]: Without dead ends: 145 [2024-11-23 18:32:33,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:32:33,335 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:32:33,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:32:33,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-23 18:32:33,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-11-23 18:32:33,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 127 states have (on average 1.4409448818897639) internal successors, (183), 127 states have internal predecessors, (183), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 18:32:33,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 215 transitions. [2024-11-23 18:32:33,396 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 215 transitions. Word has length 133 [2024-11-23 18:32:33,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:32:33,397 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 215 transitions. [2024-11-23 18:32:33,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 18:32:33,397 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 215 transitions. [2024-11-23 18:32:33,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-23 18:32:33,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:33,405 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:33,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-23 18:32:33,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:32:33,606 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:33,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:33,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1607444309, now seen corresponding path program 1 times [2024-11-23 18:32:33,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:32:33,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481981063] [2024-11-23 18:32:33,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:33,608 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:32:33,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:32:33,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:32:33,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-23 18:32:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:34,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 18:32:34,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:32:34,231 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-23 18:32:34,231 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:32:34,231 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:32:34,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481981063] [2024-11-23 18:32:34,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481981063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:34,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:34,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:32:34,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690353342] [2024-11-23 18:32:34,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:34,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:32:34,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:32:34,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:32:34,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:32:34,239 INFO L87 Difference]: Start difference. First operand 145 states and 215 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 18:32:34,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:32:34,426 INFO L93 Difference]: Finished difference Result 289 states and 430 transitions. [2024-11-23 18:32:34,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:32:34,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2024-11-23 18:32:34,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:32:34,438 INFO L225 Difference]: With dead ends: 289 [2024-11-23 18:32:34,438 INFO L226 Difference]: Without dead ends: 147 [2024-11-23 18:32:34,439 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:32:34,443 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:32:34,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 628 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:32:34,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-23 18:32:34,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-23 18:32:34,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 129 states have (on average 1.434108527131783) internal successors, (185), 129 states have internal predecessors, (185), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 18:32:34,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 217 transitions. [2024-11-23 18:32:34,477 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 217 transitions. Word has length 133 [2024-11-23 18:32:34,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:32:34,479 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 217 transitions. [2024-11-23 18:32:34,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 18:32:34,481 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 217 transitions. [2024-11-23 18:32:34,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-23 18:32:34,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:34,484 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:34,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-23 18:32:34,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:32:34,685 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:34,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:34,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1658163689, now seen corresponding path program 1 times [2024-11-23 18:32:34,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:32:34,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763787270] [2024-11-23 18:32:34,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:34,687 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:32:34,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:32:34,690 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:32:34,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-23 18:32:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:35,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 18:32:35,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:32:35,275 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:32:35,277 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:32:35,277 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:32:35,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763787270] [2024-11-23 18:32:35,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763787270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:35,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:35,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:32:35,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064037417] [2024-11-23 18:32:35,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:35,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:32:35,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:32:35,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:32:35,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:32:35,285 INFO L87 Difference]: Start difference. First operand 147 states and 217 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:32:35,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:32:35,361 INFO L93 Difference]: Finished difference Result 293 states and 434 transitions. [2024-11-23 18:32:35,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:32:35,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 133 [2024-11-23 18:32:35,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:32:35,367 INFO L225 Difference]: With dead ends: 293 [2024-11-23 18:32:35,368 INFO L226 Difference]: Without dead ends: 149 [2024-11-23 18:32:35,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:32:35,373 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:32:35,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 628 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:32:35,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-23 18:32:35,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-11-23 18:32:35,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 131 states have (on average 1.4274809160305344) internal successors, (187), 131 states have internal predecessors, (187), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 18:32:35,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 219 transitions. [2024-11-23 18:32:35,387 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 219 transitions. Word has length 133 [2024-11-23 18:32:35,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:32:35,388 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 219 transitions. [2024-11-23 18:32:35,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:32:35,388 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 219 transitions. [2024-11-23 18:32:35,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-23 18:32:35,391 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:35,391 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:35,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-23 18:32:35,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:32:35,592 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:35,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:35,593 INFO L85 PathProgramCache]: Analyzing trace with hash 565461865, now seen corresponding path program 1 times [2024-11-23 18:32:35,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:32:35,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619833979] [2024-11-23 18:32:35,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:35,594 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:32:35,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:32:35,605 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:32:35,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-23 18:32:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:36,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 18:32:36,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:32:36,166 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:32:36,167 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:32:36,167 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:32:36,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619833979] [2024-11-23 18:32:36,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [619833979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:36,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:36,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:32:36,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228050127] [2024-11-23 18:32:36,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:36,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:32:36,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:32:36,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:32:36,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:32:36,170 INFO L87 Difference]: Start difference. First operand 149 states and 219 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:32:36,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:32:36,230 INFO L93 Difference]: Finished difference Result 372 states and 550 transitions. [2024-11-23 18:32:36,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:32:36,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 135 [2024-11-23 18:32:36,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:32:36,234 INFO L225 Difference]: With dead ends: 372 [2024-11-23 18:32:36,234 INFO L226 Difference]: Without dead ends: 226 [2024-11-23 18:32:36,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:32:36,236 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 114 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:32:36,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 412 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:32:36,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-23 18:32:36,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 181. [2024-11-23 18:32:36,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 163 states have (on average 1.4478527607361964) internal successors, (236), 163 states have internal predecessors, (236), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 18:32:36,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 268 transitions. [2024-11-23 18:32:36,253 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 268 transitions. Word has length 135 [2024-11-23 18:32:36,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:32:36,254 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 268 transitions. [2024-11-23 18:32:36,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:32:36,255 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 268 transitions. [2024-11-23 18:32:36,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-23 18:32:36,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:32:36,258 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:36,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-23 18:32:36,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:32:36,459 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:32:36,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:36,460 INFO L85 PathProgramCache]: Analyzing trace with hash -612419662, now seen corresponding path program 1 times [2024-11-23 18:32:36,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:32:36,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526520780] [2024-11-23 18:32:36,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:36,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:32:36,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:32:36,466 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:32:36,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-23 18:32:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:37,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-23 18:32:37,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:32:37,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 18:32:37,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2024-11-23 18:32:38,669 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:32:38,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 31 [2024-11-23 18:32:38,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:32:38,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 31 [2024-11-23 18:32:39,268 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:32:39,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 31 [2024-11-23 18:32:39,517 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:32:39,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 51 [2024-11-23 18:32:44,239 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:32:44,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 87 treesize of output 57 [2024-11-23 18:32:44,736 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:32:44,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 87 treesize of output 57 [2024-11-23 18:32:45,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:32:45,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 66 [2024-11-23 18:32:46,770 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:32:46,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 118 treesize of output 97 [2024-11-23 18:32:51,843 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 304 proven. 96 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-23 18:32:51,844 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:32:52,355 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:32:52,355 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:32:52,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526520780] [2024-11-23 18:32:52,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526520780] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 18:32:52,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:32:52,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [26] total 28 [2024-11-23 18:32:52,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216087512] [2024-11-23 18:32:52,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:52,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:32:52,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:32:52,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:32:52,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=635, Unknown=2, NotChecked=0, Total=756 [2024-11-23 18:32:52,359 INFO L87 Difference]: Start difference. First operand 181 states and 268 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:32:58,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:33:02,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:02,802 INFO L93 Difference]: Finished difference Result 471 states and 696 transitions. [2024-11-23 18:33:02,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:33:02,806 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 135 [2024-11-23 18:33:02,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:02,808 INFO L225 Difference]: With dead ends: 471 [2024-11-23 18:33:02,810 INFO L226 Difference]: Without dead ends: 293 [2024-11-23 18:33:02,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=131, Invalid=797, Unknown=2, NotChecked=0, Total=930 [2024-11-23 18:33:02,813 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 115 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:02,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 772 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 370 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2024-11-23 18:33:02,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-23 18:33:02,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 290. [2024-11-23 18:33:02,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 267 states have (on average 1.453183520599251) internal successors, (388), 268 states have internal predecessors, (388), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-23 18:33:02,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 428 transitions. [2024-11-23 18:33:02,854 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 428 transitions. Word has length 135 [2024-11-23 18:33:02,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:02,855 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 428 transitions. [2024-11-23 18:33:02,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:33:02,856 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 428 transitions. [2024-11-23 18:33:02,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-23 18:33:02,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:02,859 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:02,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-23 18:33:03,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:33:03,060 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:03,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:03,060 INFO L85 PathProgramCache]: Analyzing trace with hash -262788130, now seen corresponding path program 1 times [2024-11-23 18:33:03,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:33:03,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006564784] [2024-11-23 18:33:03,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:03,061 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:33:03,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:33:03,063 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:33:03,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-23 18:33:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:03,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 18:33:03,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:33:03,563 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:33:03,563 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:33:03,563 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:33:03,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006564784] [2024-11-23 18:33:03,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006564784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:03,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:03,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:33:03,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835420625] [2024-11-23 18:33:03,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:03,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:33:03,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:33:03,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:33:03,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:33:03,565 INFO L87 Difference]: Start difference. First operand 290 states and 428 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:33:03,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:03,657 INFO L93 Difference]: Finished difference Result 583 states and 861 transitions. [2024-11-23 18:33:03,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:33:03,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 136 [2024-11-23 18:33:03,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:03,669 INFO L225 Difference]: With dead ends: 583 [2024-11-23 18:33:03,669 INFO L226 Difference]: Without dead ends: 296 [2024-11-23 18:33:03,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:33:03,671 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:03,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 833 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:33:03,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-23 18:33:03,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 292. [2024-11-23 18:33:03,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 269 states have (on average 1.449814126394052) internal successors, (390), 270 states have internal predecessors, (390), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-23 18:33:03,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 430 transitions. [2024-11-23 18:33:03,710 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 430 transitions. Word has length 136 [2024-11-23 18:33:03,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:03,711 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 430 transitions. [2024-11-23 18:33:03,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:33:03,711 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 430 transitions. [2024-11-23 18:33:03,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-23 18:33:03,715 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:03,716 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:03,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-23 18:33:03,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:33:03,917 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:03,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:03,917 INFO L85 PathProgramCache]: Analyzing trace with hash 130892061, now seen corresponding path program 1 times [2024-11-23 18:33:03,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:33:03,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514187557] [2024-11-23 18:33:03,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:03,918 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:33:03,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:33:03,920 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:33:03,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-23 18:33:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:04,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 18:33:04,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:33:04,346 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:33:04,347 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:33:04,347 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:33:04,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514187557] [2024-11-23 18:33:04,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514187557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:04,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:04,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:33:04,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783791335] [2024-11-23 18:33:04,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:04,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:33:04,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:33:04,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:33:04,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:33:04,353 INFO L87 Difference]: Start difference. First operand 292 states and 430 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:33:04,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:33:04,442 INFO L93 Difference]: Finished difference Result 587 states and 865 transitions. [2024-11-23 18:33:04,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:33:04,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-23 18:33:04,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:33:04,446 INFO L225 Difference]: With dead ends: 587 [2024-11-23 18:33:04,450 INFO L226 Difference]: Without dead ends: 298 [2024-11-23 18:33:04,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:33:04,451 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:33:04,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 832 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:33:04,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-23 18:33:04,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2024-11-23 18:33:04,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 275 states have (on average 1.44) internal successors, (396), 276 states have internal predecessors, (396), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-23 18:33:04,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 436 transitions. [2024-11-23 18:33:04,482 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 436 transitions. Word has length 137 [2024-11-23 18:33:04,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:33:04,482 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 436 transitions. [2024-11-23 18:33:04,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:33:04,483 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 436 transitions. [2024-11-23 18:33:04,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-23 18:33:04,487 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:33:04,487 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:04,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-23 18:33:04,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:33:04,688 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:33:04,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:04,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1320109804, now seen corresponding path program 1 times [2024-11-23 18:33:04,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:33:04,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [896033890] [2024-11-23 18:33:04,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:04,689 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:33:04,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:33:04,691 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:33:04,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-23 18:33:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:05,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 18:33:05,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:33:05,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 18:33:05,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-23 18:33:05,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2024-11-23 18:33:09,453 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:33:09,454 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:33:09,454 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:33:09,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [896033890] [2024-11-23 18:33:09,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [896033890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:09,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:09,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:33:09,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375556001] [2024-11-23 18:33:09,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:09,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:33:09,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:33:09,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:33:09,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=19, Unknown=1, NotChecked=0, Total=30 [2024-11-23 18:33:09,456 INFO L87 Difference]: Start difference. First operand 298 states and 436 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:33:15,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:33:19,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:33:23,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:33:28,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:33:32,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:33:36,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:33:40,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:33:44,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:33:48,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:33:52,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:33:56,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:34:00,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:34:04,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:34:08,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:34:12,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:34:16,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:34:20,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:34:25,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:34:29,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:34:33,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:34:37,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:34:41,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:34:46,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:34:50,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:34:54,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:34:58,634 WARN L539 Checker$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] [2024-11-23 18:35:02,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:35:06,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:35:10,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:35:14,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:35:18,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:35:23,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:35:27,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:27,949 INFO L93 Difference]: Finished difference Result 704 states and 1036 transitions. [2024-11-23 18:35:27,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 18:35:27,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-23 18:35:27,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:27,956 INFO L225 Difference]: With dead ends: 704 [2024-11-23 18:35:27,956 INFO L226 Difference]: Without dead ends: 409 [2024-11-23 18:35:27,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=20, Invalid=35, Unknown=1, NotChecked=0, Total=56 [2024-11-23 18:35:27,959 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 215 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 14 mSolverCounterUnsat, 32 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 137.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 32 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 138.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:27,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 869 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 638 Invalid, 32 Unknown, 0 Unchecked, 138.3s Time] [2024-11-23 18:35:27,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-23 18:35:27,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 359. [2024-11-23 18:35:27,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 323 states have (on average 1.4210526315789473) internal successors, (459), 323 states have internal predecessors, (459), 32 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 18:35:28,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 523 transitions. [2024-11-23 18:35:28,002 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 523 transitions. Word has length 137 [2024-11-23 18:35:28,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:28,002 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 523 transitions. [2024-11-23 18:35:28,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:35:28,003 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 523 transitions. [2024-11-23 18:35:28,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-23 18:35:28,007 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:28,007 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:28,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-23 18:35:28,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:35:28,211 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:28,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:28,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1604988632, now seen corresponding path program 1 times [2024-11-23 18:35:28,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:35:28,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239415160] [2024-11-23 18:35:28,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:28,213 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:35:28,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:35:28,217 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:35:28,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-23 18:35:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:28,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 18:35:28,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:35:28,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 18:35:28,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 18:35:28,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2024-11-23 18:35:32,991 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:35:32,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 14 [2024-11-23 18:35:33,198 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:35:33,198 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:35:33,198 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:35:33,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239415160] [2024-11-23 18:35:33,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239415160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:33,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:33,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:35:33,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622351325] [2024-11-23 18:35:33,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:33,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:35:33,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:35:33,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:35:33,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=19, Unknown=1, NotChecked=0, Total=30 [2024-11-23 18:35:33,200 INFO L87 Difference]: Start difference. First operand 359 states and 523 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:35:41,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:35:46,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:35:50,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:35:55,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:35:59,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:36:03,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:36:08,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:36:12,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:36:16,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:36:21,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:36:25,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:36:30,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:36:34,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:36:39,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:36:43,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:36:47,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:36:51,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:36:56,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:37:00,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:37:02,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:37:07,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:37:11,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:37:16,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:37:20,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:37:24,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:37:28,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:37:33,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:37:37,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:37:41,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:37:45,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:37:49,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:37:53,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:37:57,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:01,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:05,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:10,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:19,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:20,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:38:20,915 INFO L93 Difference]: Finished difference Result 773 states and 1132 transitions. [2024-11-23 18:38:20,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 18:38:20,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-23 18:38:20,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:38:20,919 INFO L225 Difference]: With dead ends: 773 [2024-11-23 18:38:20,920 INFO L226 Difference]: Without dead ends: 417 [2024-11-23 18:38:20,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=20, Invalid=35, Unknown=1, NotChecked=0, Total=56 [2024-11-23 18:38:20,922 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 382 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 62 mSolverCounterUnsat, 35 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 167.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 35 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 167.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:38:20,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 642 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 481 Invalid, 35 Unknown, 0 Unchecked, 167.5s Time] [2024-11-23 18:38:20,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-23 18:38:20,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 363. [2024-11-23 18:38:20,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 327 states have (on average 1.4128440366972477) internal successors, (462), 327 states have internal predecessors, (462), 32 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 18:38:20,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 526 transitions. [2024-11-23 18:38:20,961 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 526 transitions. Word has length 137 [2024-11-23 18:38:20,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:38:20,962 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 526 transitions. [2024-11-23 18:38:20,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:38:20,962 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 526 transitions. [2024-11-23 18:38:20,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-23 18:38:20,966 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:38:20,966 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:38:20,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-23 18:38:21,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:38:21,167 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:38:21,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:38:21,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1945701522, now seen corresponding path program 1 times [2024-11-23 18:38:21,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:38:21,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374943758] [2024-11-23 18:38:21,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:38:21,168 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:38:21,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:38:21,173 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:38:21,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-23 18:38:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:38:21,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-23 18:38:21,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:38:21,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 18:38:22,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2024-11-23 18:38:22,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2024-11-23 18:38:22,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 28 [2024-11-23 18:38:23,809 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:38:23,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 63 [2024-11-23 18:38:28,184 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:38:28,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 91 treesize of output 79 [2024-11-23 18:38:36,771 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:38:36,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 106 treesize of output 82 [2024-11-23 18:38:37,251 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:38:37,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 101 treesize of output 92 [2024-11-23 18:38:51,037 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:38:51,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 130 treesize of output 111 [2024-11-23 18:38:51,734 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:38:51,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 146 treesize of output 134 [2024-11-23 18:38:58,500 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 360 proven. 81 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-23 18:38:58,500 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:38:59,628 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:38:59,628 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:38:59,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374943758] [2024-11-23 18:38:59,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [374943758] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 18:38:59,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:38:59,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [34] total 39 [2024-11-23 18:38:59,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415982939] [2024-11-23 18:38:59,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:38:59,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:38:59,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:38:59,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:38:59,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=1259, Unknown=7, NotChecked=0, Total=1482 [2024-11-23 18:38:59,633 INFO L87 Difference]: Start difference. First operand 363 states and 526 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:39:10,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:39:10,372 INFO L93 Difference]: Finished difference Result 842 states and 1218 transitions. [2024-11-23 18:39:10,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:39:10,374 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-23 18:39:10,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:39:10,379 INFO L225 Difference]: With dead ends: 842 [2024-11-23 18:39:10,380 INFO L226 Difference]: Without dead ends: 482 [2024-11-23 18:39:10,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 33.4s TimeCoverageRelationStatistics Valid=241, Invalid=1644, Unknown=7, NotChecked=0, Total=1892 [2024-11-23 18:39:10,382 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 117 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:39:10,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1583 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2024-11-23 18:39:10,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-23 18:39:10,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 479. [2024-11-23 18:39:10,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 438 states have (on average 1.4155251141552512) internal successors, (620), 439 states have internal predecessors, (620), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 18:39:10,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 692 transitions. [2024-11-23 18:39:10,424 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 692 transitions. Word has length 139 [2024-11-23 18:39:10,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:39:10,425 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 692 transitions. [2024-11-23 18:39:10,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:39:10,425 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 692 transitions. [2024-11-23 18:39:10,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-23 18:39:10,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:39:10,428 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:39:10,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-11-23 18:39:10,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:39:10,629 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:39:10,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:39:10,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1648201196, now seen corresponding path program 1 times [2024-11-23 18:39:10,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:39:10,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366679991] [2024-11-23 18:39:10,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:39:10,630 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:39:10,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:39:10,632 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:39:10,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-23 18:39:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:39:11,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 18:39:11,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:39:11,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 18:39:11,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-23 18:39:11,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2024-11-23 18:39:15,286 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:39:15,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 15 [2024-11-23 18:39:15,304 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:39:15,304 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:39:15,305 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:39:15,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366679991] [2024-11-23 18:39:15,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366679991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:39:15,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:39:15,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:39:15,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470098850] [2024-11-23 18:39:15,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:39:15,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:39:15,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:39:15,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:39:15,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=19, Unknown=1, NotChecked=0, Total=30 [2024-11-23 18:39:15,306 INFO L87 Difference]: Start difference. First operand 479 states and 692 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:39:20,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:39:24,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:39:28,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:39:32,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:39:36,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:39:40,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:39:45,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:39:49,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:39:53,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:39:57,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:40:01,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:40:05,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:40:09,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:40:13,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:40:17,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:40:22,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:40:26,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:40:30,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:40:34,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:40:39,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:40:43,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:40:47,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:40:48,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 18:40:52,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:40:57,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:01,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:05,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:09,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:13,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:17,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:21,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:25,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:29,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:33,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:37,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:37,609 INFO L93 Difference]: Finished difference Result 977 states and 1409 transitions. [2024-11-23 18:41:37,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:41:37,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-23 18:41:37,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:37,613 INFO L225 Difference]: With dead ends: 977 [2024-11-23 18:41:37,613 INFO L226 Difference]: Without dead ends: 501 [2024-11-23 18:41:37,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=15, Invalid=26, Unknown=1, NotChecked=0, Total=42 [2024-11-23 18:41:37,615 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 122 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 6 mSolverCounterUnsat, 33 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 141.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 33 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 142.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:37,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 857 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 509 Invalid, 33 Unknown, 0 Unchecked, 142.2s Time] [2024-11-23 18:41:37,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-23 18:41:37,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 498. [2024-11-23 18:41:37,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 448 states have (on average 1.4040178571428572) internal successors, (629), 450 states have internal predecessors, (629), 44 states have call successors, (44), 5 states have call predecessors, (44), 5 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-23 18:41:37,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 717 transitions. [2024-11-23 18:41:37,658 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 717 transitions. Word has length 139 [2024-11-23 18:41:37,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:37,659 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 717 transitions. [2024-11-23 18:41:37,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:41:37,660 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 717 transitions. [2024-11-23 18:41:37,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-23 18:41:37,662 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:37,662 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:37,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-23 18:41:37,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:41:37,863 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:41:37,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:37,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1128053072, now seen corresponding path program 1 times [2024-11-23 18:41:37,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:41:37,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208977184] [2024-11-23 18:41:37,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:37,865 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 [2024-11-23 18:41:37,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:41:37,867 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:41:37,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-23 18:41:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:38,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 18:41:38,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:41:38,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 18:41:38,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-23 18:41:38,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2024-11-23 18:41:42,652 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:41:42,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 12 [2024-11-23 18:41:42,682 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:41:42,682 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:41:42,682 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:41:42,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208977184] [2024-11-23 18:41:42,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208977184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:42,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:42,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:41:42,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555375227] [2024-11-23 18:41:42,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:42,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:41:42,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:41:42,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:41:42,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=19, Unknown=1, NotChecked=0, Total=30 [2024-11-23 18:41:42,685 INFO L87 Difference]: Start difference. First operand 498 states and 717 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:41:48,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:52,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:56,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:00,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:04,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:08,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:12,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:16,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:20,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:24,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:28,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:32,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:36,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:40,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:44,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:49,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:53,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:58,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:43:02,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:43:06,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:43:10,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:43:14,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:43:18,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:43:23,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:43:27,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:43:31,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:43:35,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:43:39,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:43:43,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:43:47,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:43:51,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:43:55,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:43:59,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:44:02,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:02,943 INFO L93 Difference]: Finished difference Result 991 states and 1423 transitions. [2024-11-23 18:44:02,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:44:02,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-23 18:44:02,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:02,947 INFO L225 Difference]: With dead ends: 991 [2024-11-23 18:44:02,948 INFO L226 Difference]: Without dead ends: 505 [2024-11-23 18:44:02,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=15, Invalid=26, Unknown=1, NotChecked=0, Total=42 [2024-11-23 18:44:02,950 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 194 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 26 mSolverCounterUnsat, 33 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 139.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 33 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 140.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:02,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 807 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 422 Invalid, 33 Unknown, 0 Unchecked, 140.2s Time] [2024-11-23 18:44:02,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-23 18:44:02,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 481. [2024-11-23 18:44:02,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 439 states have (on average 1.4100227790432802) internal successors, (619), 440 states have internal predecessors, (619), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 18:44:02,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 691 transitions. [2024-11-23 18:44:02,987 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 691 transitions. Word has length 139 [2024-11-23 18:44:02,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:02,988 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 691 transitions. [2024-11-23 18:44:02,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:44:02,988 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 691 transitions. [2024-11-23 18:44:02,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-23 18:44:02,995 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:02,996 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:03,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-23 18:44:03,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:44:03,200 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:03,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:03,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1829117650, now seen corresponding path program 1 times [2024-11-23 18:44:03,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:44:03,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209226145] [2024-11-23 18:44:03,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:03,201 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:44:03,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:44:03,203 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:44:03,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-23 18:44:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:03,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-23 18:44:03,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:44:03,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 18:44:04,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2024-11-23 18:44:04,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2024-11-23 18:44:04,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 28 [2024-11-23 18:44:05,708 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:44:05,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 63 [2024-11-23 18:44:10,262 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:44:10,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 86 treesize of output 89 [2024-11-23 18:44:19,112 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:44:19,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 116 treesize of output 95 [2024-11-23 18:44:19,808 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:44:19,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 106 treesize of output 115 [2024-11-23 18:44:34,109 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:44:34,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 150 treesize of output 137 [2024-11-23 18:44:40,020 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:44:40,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 204 treesize of output 174 [2024-11-23 18:44:48,973 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 355 proven. 78 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-23 18:44:48,973 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:44:50,147 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:44:50,148 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:44:50,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1209226145] [2024-11-23 18:44:50,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1209226145] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 18:44:50,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:44:50,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [34] total 39 [2024-11-23 18:44:50,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516907309] [2024-11-23 18:44:50,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:50,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:44:50,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:44:50,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:44:50,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=1259, Unknown=7, NotChecked=0, Total=1482 [2024-11-23 18:44:50,150 INFO L87 Difference]: Start difference. First operand 481 states and 691 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:45:02,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:45:02,190 INFO L93 Difference]: Finished difference Result 977 states and 1400 transitions. [2024-11-23 18:45:02,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:45:02,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-23 18:45:02,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:45:02,194 INFO L225 Difference]: With dead ends: 977 [2024-11-23 18:45:02,194 INFO L226 Difference]: Without dead ends: 499 [2024-11-23 18:45:02,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 41.0s TimeCoverageRelationStatistics Valid=241, Invalid=1644, Unknown=7, NotChecked=0, Total=1892 [2024-11-23 18:45:02,196 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 113 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:45:02,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1643 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2024-11-23 18:45:02,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-23 18:45:02,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 441. [2024-11-23 18:45:02,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 399 states have (on average 1.406015037593985) internal successors, (561), 400 states have internal predecessors, (561), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 18:45:02,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 633 transitions. [2024-11-23 18:45:02,245 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 633 transitions. Word has length 139 [2024-11-23 18:45:02,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:45:02,248 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 633 transitions. [2024-11-23 18:45:02,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:45:02,248 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 633 transitions. [2024-11-23 18:45:02,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-23 18:45:02,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:45:02,250 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:45:02,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-23 18:45:02,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:45:02,451 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:45:02,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:45:02,451 INFO L85 PathProgramCache]: Analyzing trace with hash 196071605, now seen corresponding path program 1 times [2024-11-23 18:45:02,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:45:02,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606940305] [2024-11-23 18:45:02,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:45:02,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:45:02,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:45:02,454 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:45:02,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-23 18:45:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:45:02,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 18:45:02,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:45:02,821 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 18:45:02,821 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:45:02,821 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:45:02,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [606940305] [2024-11-23 18:45:02,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [606940305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:45:02,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:45:02,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:45:02,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041199390] [2024-11-23 18:45:02,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:45:02,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:45:02,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:45:02,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:45:02,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:45:02,823 INFO L87 Difference]: Start difference. First operand 441 states and 633 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:45:03,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:45:03,522 INFO L93 Difference]: Finished difference Result 941 states and 1344 transitions. [2024-11-23 18:45:03,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:45:03,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 139 [2024-11-23 18:45:03,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:45:03,526 INFO L225 Difference]: With dead ends: 941 [2024-11-23 18:45:03,526 INFO L226 Difference]: Without dead ends: 512 [2024-11-23 18:45:03,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:45:03,528 INFO L435 NwaCegarLoop]: 312 mSDtfsCounter, 112 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:45:03,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 507 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 18:45:03,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-23 18:45:03,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 418. [2024-11-23 18:45:03,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 376 states have (on average 1.3829787234042554) internal successors, (520), 377 states have internal predecessors, (520), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-23 18:45:03,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 592 transitions. [2024-11-23 18:45:03,572 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 592 transitions. Word has length 139 [2024-11-23 18:45:03,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:45:03,573 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 592 transitions. [2024-11-23 18:45:03,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 18:45:03,573 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 592 transitions. [2024-11-23 18:45:03,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-23 18:45:03,575 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:45:03,575 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:45:03,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-23 18:45:03,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:45:03,776 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:45:03,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:45:03,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1925589886, now seen corresponding path program 1 times [2024-11-23 18:45:03,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:45:03,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382083062] [2024-11-23 18:45:03,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:45:03,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:45:03,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:45:03,779 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:45:03,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f05695-f375-4687-83a9-035b54d45ed1/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-23 18:45:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:45:04,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 18:45:04,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:45:04,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 18:45:04,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 18:45:04,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 18:45:04,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 18:45:04,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-23 18:45:04,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2024-11-23 18:45:08,733 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:45:08,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 28 [2024-11-23 18:45:08,862 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:45:08,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 38 [2024-11-23 18:45:17,091 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:45:17,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 51 [2024-11-23 18:45:29,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 76 [2024-11-23 18:45:29,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 18:45:29,514 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:45:29,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 124 [2024-11-23 18:45:29,702 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 18:45:29,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 62 treesize of output 26 [2024-11-23 18:45:29,741 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 313 proven. 36 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-23 18:45:29,741 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:45:30,406 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 9 proven. 36 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-23 18:45:30,407 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:45:30,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1382083062] [2024-11-23 18:45:30,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1382083062] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:45:30,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 18:45:30,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 16 [2024-11-23 18:45:30,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454251197] [2024-11-23 18:45:30,407 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 18:45:30,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 18:45:30,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:45:30,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 18:45:30,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=173, Unknown=6, NotChecked=0, Total=240 [2024-11-23 18:45:30,409 INFO L87 Difference]: Start difference. First operand 418 states and 592 transitions. Second operand has 16 states, 14 states have (on average 7.571428571428571) internal successors, (106), 16 states have internal predecessors, (106), 7 states have call successors, (29), 5 states have call predecessors, (29), 7 states have return successors, (29), 5 states have call predecessors, (29), 7 states have call successors, (29)